1 00:00:30,550 --> 00:00:08,950 [Music] 2 00:00:36,310 --> 00:00:33,430 greetings friends fellow earthlings and 3 00:00:38,950 --> 00:00:36,320 maybe explorers of the deep and welcome 4 00:00:40,869 --> 00:00:38,960 to ask an astrobiologist the show that 5 00:00:43,670 --> 00:00:40,879 celebrates the science and celebrates 6 00:00:45,430 --> 00:00:43,680 the scientists involved in our quest to 7 00:00:46,549 --> 00:00:45,440 understand the nature of life the 8 00:00:49,069 --> 00:00:46,559 universe 9 00:00:51,590 --> 00:00:49,079 i'm your host dr graham the 10 00:00:54,430 --> 00:00:51,600 cosmobiologist lao and we're brought to 11 00:00:56,150 --> 00:00:54,440 you by the nasa astrobiology program and 12 00:00:58,389 --> 00:00:56,160 saginet.org 13 00:01:01,670 --> 00:00:58,399 today's episode is going to take us on a 14 00:01:03,510 --> 00:01:01,680 deep oceanic dive with a researcher who 15 00:01:05,910 --> 00:01:03,520 has had more time at sea and in 16 00:01:08,070 --> 00:01:05,920 submersibles than anyone i've ever 17 00:01:09,910 --> 00:01:08,080 personally met uh that's right we're 18 00:01:12,870 --> 00:01:09,920 going to be diving down into the 19 00:01:15,030 --> 00:01:12,880 majestic deep of the ocean to talk about 20 00:01:17,510 --> 00:01:15,040 some current research in the realm of 21 00:01:19,830 --> 00:01:17,520 hydrothermal vents and mud volcanoes and 22 00:01:21,270 --> 00:01:19,840 other interactions of ocean water with 23 00:01:23,270 --> 00:01:21,280 the sea floor 24 00:01:24,149 --> 00:01:23,280 and how that relates to astrobiology as 25 00:01:26,390 --> 00:01:24,159 well 26 00:01:27,590 --> 00:01:26,400 but first as always we like to give a 27 00:01:29,270 --> 00:01:27,600 shout out to 28 00:01:31,190 --> 00:01:29,280 all of you out there who've been 29 00:01:33,670 --> 00:01:31,200 watching our show and supporting us over 30 00:01:36,950 --> 00:01:33,680 the years now uh this is our 45th 31 00:01:39,350 --> 00:01:36,960 episode it's so exciting um a special 32 00:01:40,350 --> 00:01:39,360 thanks goes to denise 33 00:01:41,910 --> 00:01:40,360 at 34 00:01:45,030 --> 00:01:41,920 astrobiodnz 35 00:01:47,510 --> 00:01:45,040 on twitter uh denise has been fantastic 36 00:01:50,230 --> 00:01:47,520 and has been the ambassador of our show 37 00:01:52,310 --> 00:01:50,240 for the past several episodes uh and has 38 00:01:53,590 --> 00:01:52,320 been great at sharing information about 39 00:01:56,630 --> 00:01:53,600 our guests and things that we're doing 40 00:01:58,789 --> 00:01:56,640 but we do appreciate all that you do all 41 00:02:01,109 --> 00:01:58,799 of you in sharing the show and staying 42 00:02:03,590 --> 00:02:01,119 curious and asking questions 43 00:02:04,870 --> 00:02:03,600 now our guest for this show today is dr 44 00:02:07,510 --> 00:02:04,880 jeff wheat 45 00:02:09,749 --> 00:02:07,520 dr wheat is an expert in the realm of 46 00:02:11,190 --> 00:02:09,759 oceanography and the geochemistry of the 47 00:02:13,270 --> 00:02:11,200 ocean floor 48 00:02:14,790 --> 00:02:13,280 he earned an undergraduate degree in 49 00:02:17,510 --> 00:02:14,800 mathematics from the university of new 50 00:02:19,990 --> 00:02:17,520 hampshire before going on to earn his 51 00:02:21,910 --> 00:02:20,000 master's degree and doctoral degree in 52 00:02:23,110 --> 00:02:21,920 oceanography from the university of 53 00:02:25,510 --> 00:02:23,120 washington 54 00:02:27,510 --> 00:02:25,520 he's since had numerous appointments in 55 00:02:29,110 --> 00:02:27,520 various research institutions and is 56 00:02:31,270 --> 00:02:29,120 currently a research professor at the 57 00:02:33,350 --> 00:02:31,280 university of fairbanks uh university of 58 00:02:34,550 --> 00:02:33,360 alaska in fairbanks and is a research 59 00:02:36,470 --> 00:02:34,560 affiliate through the moss landing 60 00:02:39,430 --> 00:02:36,480 marine laboratories 61 00:02:41,750 --> 00:02:39,440 dr wheat's research focuses on processes 62 00:02:44,390 --> 00:02:41,760 that influence the cycles of elements in 63 00:02:46,630 --> 00:02:44,400 the oceans specifically looking at how 64 00:02:48,390 --> 00:02:46,640 fluids transport materials through the 65 00:02:50,790 --> 00:02:48,400 oceanic crust 66 00:02:52,390 --> 00:02:50,800 and back into the sea water uh in places 67 00:02:55,830 --> 00:02:52,400 like hydrothermal vents and mud 68 00:02:59,350 --> 00:02:55,840 volcanoes seeps and more dr wheat has 69 00:03:01,190 --> 00:02:59,360 participated in 79 ocean expeditions of 70 00:03:04,070 --> 00:03:01,200 which 49 of those have included a 71 00:03:06,470 --> 00:03:04,080 submersible or an rov component and he 72 00:03:08,070 --> 00:03:06,480 intends to do more and so please help me 73 00:03:10,710 --> 00:03:08,080 in welcoming and saying thank you for 74 00:03:11,990 --> 00:03:10,720 joining us to dr jeff wheat uh dr wheat 75 00:03:13,670 --> 00:03:12,000 thank you for joining us for ask an 76 00:03:15,270 --> 00:03:13,680 astro biologist 77 00:03:16,470 --> 00:03:15,280 well thank you for thank you for having 78 00:03:17,750 --> 00:03:16,480 me 79 00:03:20,070 --> 00:03:17,760 yeah it's such a pleasure to have you on 80 00:03:22,070 --> 00:03:20,080 the show uh like i said you've been on 81 00:03:24,309 --> 00:03:22,080 far more expeditions in the ocean than 82 00:03:26,229 --> 00:03:24,319 anyone i've ever personally met which i 83 00:03:27,910 --> 00:03:26,239 think is really cool and i'd love to 84 00:03:30,070 --> 00:03:27,920 talk a lot about your current uh 85 00:03:32,550 --> 00:03:30,080 research upcoming research and exploring 86 00:03:34,630 --> 00:03:32,560 the ocean floor but first i'd love to 87 00:03:37,270 --> 00:03:34,640 hear for our audience what your career 88 00:03:39,030 --> 00:03:37,280 path has been um specifically what kind 89 00:03:40,550 --> 00:03:39,040 of drove you into this realm of wanting 90 00:03:43,110 --> 00:03:40,560 to get into the chemical oceanography 91 00:03:45,110 --> 00:03:43,120 and geology of the seafloor 92 00:03:47,270 --> 00:03:45,120 well like i think like most people it 93 00:03:49,830 --> 00:03:47,280 was a circuitous path 94 00:03:51,110 --> 00:03:49,840 it all started out um 95 00:03:52,789 --> 00:03:51,120 visiting and hanging out with my 96 00:03:54,470 --> 00:03:52,799 grandfather when i was a kid and 97 00:03:55,670 --> 00:03:54,480 spending time on the ocean and in the 98 00:03:57,350 --> 00:03:55,680 ocean and 99 00:04:00,710 --> 00:03:57,360 swimming everything from fishing 100 00:04:02,630 --> 00:04:00,720 swimming to boating and so on and then i 101 00:04:04,149 --> 00:04:02,640 went to the university of new hampshire 102 00:04:06,149 --> 00:04:04,159 because they had a 103 00:04:07,670 --> 00:04:06,159 undergraduate minor in oceanography and 104 00:04:09,750 --> 00:04:07,680 i knew i wanted to do something in 105 00:04:12,229 --> 00:04:09,760 oceanography i just didn't know what 106 00:04:14,470 --> 00:04:12,239 i started off in geology 107 00:04:17,189 --> 00:04:14,480 and after my first year i decided when 108 00:04:18,629 --> 00:04:17,199 it came time to take um petrology and 109 00:04:20,390 --> 00:04:18,639 mineralogy that 110 00:04:22,790 --> 00:04:20,400 that didn't look like uh 111 00:04:25,430 --> 00:04:22,800 of my you know that wasn't for me 112 00:04:28,150 --> 00:04:25,440 so instead i switched over to math 113 00:04:30,390 --> 00:04:28,160 and uh continued to work for an 114 00:04:32,230 --> 00:04:30,400 oceanographer on campus a chemical 115 00:04:33,350 --> 00:04:32,240 oceanographer he was dealing with uh 116 00:04:36,070 --> 00:04:33,360 nutrients 117 00:04:38,150 --> 00:04:36,080 in some of the local estuaries and and 118 00:04:39,909 --> 00:04:38,160 rivers 119 00:04:41,189 --> 00:04:39,919 so i wonder if you can tell us what what 120 00:04:42,550 --> 00:04:41,199 is the importance of studying those 121 00:04:44,790 --> 00:04:42,560 kinds of things 122 00:04:46,629 --> 00:04:44,800 of studying estuaries rivers nutrients 123 00:04:47,990 --> 00:04:46,639 cycling in the ocean 124 00:04:49,670 --> 00:04:48,000 um 125 00:04:50,550 --> 00:04:49,680 exactly that 126 00:04:52,710 --> 00:04:50,560 the 127 00:04:55,030 --> 00:04:52,720 rivers are a great source of solutes to 128 00:04:58,070 --> 00:04:55,040 the ocean it's one of the major aspects 129 00:05:00,469 --> 00:04:58,080 of uh tracing elements in the ocean and 130 00:05:02,870 --> 00:05:00,479 the cycle of elements so 131 00:05:04,629 --> 00:05:02,880 and a lot happens in estuaries you might 132 00:05:07,590 --> 00:05:04,639 have a lot of metals coming in 133 00:05:10,390 --> 00:05:07,600 getting deposited in that estuaries um 134 00:05:12,390 --> 00:05:10,400 some estuaries produce metals and it's 135 00:05:13,590 --> 00:05:12,400 all just part of the cycle of 136 00:05:15,670 --> 00:05:13,600 understanding 137 00:05:19,350 --> 00:05:15,680 what goes into the ocean and 138 00:05:20,710 --> 00:05:19,360 um what goes on in the ocean 139 00:05:22,150 --> 00:05:20,720 that's very cool 140 00:05:23,430 --> 00:05:22,160 um and so that kind of like led you then 141 00:05:25,590 --> 00:05:23,440 into your current research which you've 142 00:05:26,950 --> 00:05:25,600 been doing for some time now is studying 143 00:05:29,350 --> 00:05:26,960 you know this cycling of nutrients 144 00:05:31,110 --> 00:05:29,360 cycling of elements through the oceans 145 00:05:33,749 --> 00:05:31,120 um and then you know you've been down 146 00:05:35,189 --> 00:05:33,759 now and a bunch of submersibles um i 147 00:05:37,990 --> 00:05:35,199 wonder for our audience if you can 148 00:05:39,670 --> 00:05:38,000 explain what that process is of going 149 00:05:42,070 --> 00:05:39,680 down in a submersible to explore a 150 00:05:44,070 --> 00:05:42,080 process in the ocean itself as a human 151 00:05:45,670 --> 00:05:44,080 um and maybe even what it was like your 152 00:05:47,270 --> 00:05:45,680 first time going down in something like 153 00:05:48,790 --> 00:05:47,280 alvin 154 00:05:50,310 --> 00:05:48,800 yeah um i've been down in several 155 00:05:52,790 --> 00:05:50,320 different subs but they're pretty much 156 00:05:54,950 --> 00:05:52,800 all the same in the sense of uh there's 157 00:05:57,189 --> 00:05:54,960 a defined time where you expected to be 158 00:05:58,390 --> 00:05:57,199 on deck and when they expected the sub 159 00:06:01,510 --> 00:05:58,400 to come up it's usually eight in the 160 00:06:03,029 --> 00:06:01,520 morning till five at night 161 00:06:05,189 --> 00:06:03,039 and you get in the sub 162 00:06:06,950 --> 00:06:05,199 they launch you which is usually pretty 163 00:06:09,110 --> 00:06:06,960 quick because they want to get you away 164 00:06:10,629 --> 00:06:09,120 from the ship as quickly as possible 165 00:06:12,870 --> 00:06:10,639 and then it takes a couple hours to go 166 00:06:14,629 --> 00:06:12,880 down and on the way down there's a lot 167 00:06:18,550 --> 00:06:14,639 of bioluminescence 168 00:06:20,790 --> 00:06:18,560 as the sub sinks through um the water 169 00:06:22,629 --> 00:06:20,800 it disturbs the the local critters and 170 00:06:24,469 --> 00:06:22,639 they just buy a luminess and it's quite 171 00:06:26,150 --> 00:06:24,479 a show sometimes 172 00:06:28,390 --> 00:06:26,160 and then once you're down at the bottom 173 00:06:30,230 --> 00:06:28,400 you probably have four or five hours on 174 00:06:32,150 --> 00:06:30,240 the bottom to do your work 175 00:06:33,749 --> 00:06:32,160 and it's quite cold because there's no 176 00:06:36,550 --> 00:06:33,759 heaters and it's 177 00:06:39,110 --> 00:06:36,560 the titanium sphere cools quickly 178 00:06:41,590 --> 00:06:39,120 um and then it's back up another two 179 00:06:43,670 --> 00:06:41,600 hours back to the surface where you bob 180 00:06:45,350 --> 00:06:43,680 around on the ocean until they get the 181 00:06:47,990 --> 00:06:45,360 ship near you and can pick you up and 182 00:06:49,189 --> 00:06:48,000 put you on the on the fan tail of the 183 00:06:51,189 --> 00:06:49,199 ship 184 00:06:52,550 --> 00:06:51,199 but it's uh it's quite something the 185 00:06:54,950 --> 00:06:52,560 first time you're down there you're 186 00:06:57,189 --> 00:06:54,960 you're just looking in awe of 187 00:06:59,029 --> 00:06:57,199 that you're actually at the seafloor and 188 00:07:00,469 --> 00:06:59,039 all the cool critters that you've never 189 00:07:01,589 --> 00:07:00,479 seen before 190 00:07:03,350 --> 00:07:01,599 um 191 00:07:05,029 --> 00:07:03,360 and it's uh 192 00:07:07,350 --> 00:07:05,039 it's certainly uh an eye-opening 193 00:07:09,110 --> 00:07:07,360 experience 194 00:07:10,390 --> 00:07:09,120 it sounds like almost similar to space 195 00:07:12,870 --> 00:07:10,400 exploration as well you know you're 196 00:07:14,469 --> 00:07:12,880 going into this very remote exotic 197 00:07:16,469 --> 00:07:14,479 environment where humans don't belong 198 00:07:18,230 --> 00:07:16,479 and it requires something like a 199 00:07:20,070 --> 00:07:18,240 spacesuit or a submersible or a 200 00:07:21,670 --> 00:07:20,080 spaceship to protect us 201 00:07:22,790 --> 00:07:21,680 from that environment i'm glad you 202 00:07:24,950 --> 00:07:22,800 mentioned you know it's four or five 203 00:07:26,469 --> 00:07:24,960 hours in the bottom um one thing i 204 00:07:27,909 --> 00:07:26,479 wondered and maybe our audience does too 205 00:07:28,870 --> 00:07:27,919 you know like they always ask astronauts 206 00:07:31,029 --> 00:07:28,880 like how do you go to the bathroom in 207 00:07:32,309 --> 00:07:31,039 space but i think four or five hours is 208 00:07:33,510 --> 00:07:32,319 probably long and they're probably short 209 00:07:36,070 --> 00:07:33,520 enough it doesn't actually matter that 210 00:07:39,749 --> 00:07:36,080 much when you're down the submersible 211 00:07:41,029 --> 00:07:39,759 um i do recall from the film on a sphere 212 00:07:42,390 --> 00:07:41,039 which is based on a book by michael 213 00:07:43,909 --> 00:07:42,400 creighton there's a scene where they're 214 00:07:46,710 --> 00:07:43,919 descending in a submersible through the 215 00:07:49,189 --> 00:07:46,720 water and the the psychologist on board 216 00:07:51,510 --> 00:07:49,199 hears the creaking of the hall of the 217 00:07:53,350 --> 00:07:51,520 submersible and becomes terrified um 218 00:07:54,869 --> 00:07:53,360 does that happen in real life what's it 219 00:07:56,629 --> 00:07:54,879 like is there any experience that kind 220 00:07:58,390 --> 00:07:56,639 of scares you a little bit 221 00:08:00,550 --> 00:07:58,400 um there's no creaking 222 00:08:01,990 --> 00:08:00,560 uh in most part because the pilot has 223 00:08:02,790 --> 00:08:02,000 music playing 224 00:08:10,150 --> 00:08:02,800 uh 225 00:08:12,550 --> 00:08:10,160 hard rock and so you usually don't hear 226 00:08:14,230 --> 00:08:12,560 anything like that um there is always 227 00:08:15,990 --> 00:08:14,240 some condensation after you're done on 228 00:08:17,510 --> 00:08:16,000 the sea floor for a while 229 00:08:20,390 --> 00:08:17,520 um as the 230 00:08:22,790 --> 00:08:20,400 sphere cools and as you keep breathing 231 00:08:25,029 --> 00:08:22,800 and uh so that always adds a nice little 232 00:08:26,629 --> 00:08:25,039 mixture of fun with it with the new 233 00:08:28,230 --> 00:08:26,639 people um 234 00:08:32,070 --> 00:08:28,240 you know suggesting that potentially the 235 00:08:36,310 --> 00:08:33,590 that's gotta be a little terrifying 236 00:08:38,149 --> 00:08:36,320 [Laughter] 237 00:08:40,709 --> 00:08:38,159 so uh god 238 00:08:43,190 --> 00:08:40,719 yeah no but mostly they're so in awe of 239 00:08:45,430 --> 00:08:43,200 what's going on outside um and that 240 00:08:47,829 --> 00:08:45,440 they're down there that um 241 00:08:49,910 --> 00:08:47,839 yeah it's it's a lot a lot of things are 242 00:08:51,190 --> 00:08:49,920 lost on the new people which makes me 243 00:08:53,350 --> 00:08:51,200 wonder is that the same way with an 244 00:08:55,509 --> 00:08:53,360 astronaut you know the the first time or 245 00:08:56,710 --> 00:08:55,519 they they're up is their first day kind 246 00:09:00,070 --> 00:08:56,720 of 247 00:09:01,269 --> 00:09:00,080 the technology and the beauty and 248 00:09:04,070 --> 00:09:01,279 everything else 249 00:09:06,389 --> 00:09:04,080 uh before they can get settled in 250 00:09:07,670 --> 00:09:06,399 um okay 251 00:09:09,269 --> 00:09:07,680 it's a very good question and it would 252 00:09:10,070 --> 00:09:09,279 be worth asking an astronaut what that's 253 00:09:11,910 --> 00:09:10,080 like 254 00:09:13,509 --> 00:09:11,920 um i know so that now now we do longer 255 00:09:15,350 --> 00:09:13,519 stays in the international space station 256 00:09:16,870 --> 00:09:15,360 but it used to be that a lot of the food 257 00:09:19,430 --> 00:09:16,880 that was sent to space with astronauts 258 00:09:20,630 --> 00:09:19,440 especially for shorter trips was was 259 00:09:22,230 --> 00:09:20,640 spicier 260 00:09:23,590 --> 00:09:22,240 more flavorful than usual because when 261 00:09:25,350 --> 00:09:23,600 they go to space for the first time 262 00:09:27,030 --> 00:09:25,360 their all of their their mucus and their 263 00:09:28,230 --> 00:09:27,040 sinuses kind of rises up everywhere 264 00:09:29,990 --> 00:09:28,240 because there's no gravity pulling it 265 00:09:31,590 --> 00:09:30,000 down and so it actually interferes with 266 00:09:33,670 --> 00:09:31,600 their sense of smell a little bit and so 267 00:09:34,710 --> 00:09:33,680 tasting things and smelling things is a 268 00:09:37,110 --> 00:09:34,720 little different in space for the 269 00:09:39,350 --> 00:09:37,120 astronauts which must also be kind of a 270 00:09:41,190 --> 00:09:39,360 unique experience to kind of have that 271 00:09:43,269 --> 00:09:41,200 for the first time plus just the all of 272 00:09:44,870 --> 00:09:43,279 looking at the earth from space or in 273 00:09:46,790 --> 00:09:44,880 your case the all of seeing something 274 00:09:48,470 --> 00:09:46,800 like bioluminescence that far down in 275 00:09:50,070 --> 00:09:48,480 the ocean is you're disturbing things 276 00:09:52,550 --> 00:09:50,080 like dinoflagellates and other creatures 277 00:09:53,910 --> 00:09:52,560 going down 278 00:09:55,910 --> 00:09:53,920 yes yeah 279 00:09:57,750 --> 00:09:55,920 and there and being on the sea floor 280 00:09:59,350 --> 00:09:57,760 there's there's new critters everywhere 281 00:10:00,710 --> 00:09:59,360 um 282 00:10:03,990 --> 00:10:00,720 you know if you wanted to find a new 283 00:10:05,350 --> 00:10:04,000 species it wouldn't be very difficult 284 00:10:07,030 --> 00:10:05,360 i imagine that's a great way to get a 285 00:10:08,470 --> 00:10:07,040 bunch of papers published is just to be 286 00:10:09,910 --> 00:10:08,480 on the sea floor and just discover a 287 00:10:11,509 --> 00:10:09,920 whole bunch of new species and things 288 00:10:12,949 --> 00:10:11,519 like that 289 00:10:15,910 --> 00:10:12,959 and in that vein of exploring the 290 00:10:19,509 --> 00:10:15,920 seafloor through the nasa astrobio 291 00:10:21,910 --> 00:10:19,519 twitter account we asked our audience 292 00:10:24,069 --> 00:10:21,920 when the first year is that humans went 293 00:10:25,990 --> 00:10:24,079 down in a submersible and discovered 294 00:10:29,509 --> 00:10:26,000 hydrothermal vents 295 00:10:32,790 --> 00:10:29,519 we had a few options of 1960 1965 296 00:10:35,590 --> 00:10:32,800 1971 and 1977 297 00:10:37,910 --> 00:10:35,600 most people said 1971 298 00:10:40,069 --> 00:10:37,920 but it was actually 1977 299 00:10:41,670 --> 00:10:40,079 um so there many years before that there 300 00:10:43,910 --> 00:10:41,680 were people who were hypothesizing there 301 00:10:45,430 --> 00:10:43,920 were these systems on the sea floor 302 00:10:47,430 --> 00:10:45,440 where it appeared there was some heat 303 00:10:49,190 --> 00:10:47,440 coming out um there were some you know 304 00:10:50,949 --> 00:10:49,200 potential ideas of this idea that there 305 00:10:52,949 --> 00:10:50,959 could be something down there but it was 306 00:10:54,790 --> 00:10:52,959 77 when the first paper came out and the 307 00:10:56,310 --> 00:10:54,800 first people went down and observed 308 00:10:59,030 --> 00:10:56,320 hydrothermal vents that's the same year 309 00:11:00,389 --> 00:10:59,040 that voyager 1 launched to space 310 00:11:01,990 --> 00:11:00,399 for our audience 311 00:11:04,230 --> 00:11:02,000 so dr wheat i'm wondering if you could 312 00:11:07,190 --> 00:11:04,240 kind of give us your vision of what what 313 00:11:09,110 --> 00:11:07,200 hydrothermal vents are on the sea floor 314 00:11:10,949 --> 00:11:09,120 um and maybe even help us connect those 315 00:11:13,829 --> 00:11:10,959 to other worlds 316 00:11:16,949 --> 00:11:13,839 so so they vary uh drastically depending 317 00:11:19,190 --> 00:11:16,959 on the geologic setting as well as how 318 00:11:20,790 --> 00:11:19,200 hot the fluids are that are coming out 319 00:11:23,430 --> 00:11:20,800 so like the ones that you were talking 320 00:11:25,030 --> 00:11:23,440 about at the galapagos uh those by the 321 00:11:27,829 --> 00:11:25,040 time there were high temperature waters 322 00:11:30,470 --> 00:11:27,839 at depth but they mixed and cooled 323 00:11:33,030 --> 00:11:30,480 before conductively before they came out 324 00:11:35,269 --> 00:11:33,040 at the sea floor and so they were lower 325 00:11:36,790 --> 00:11:35,279 temperature coming out but they were 326 00:11:37,829 --> 00:11:36,800 carried reduced 327 00:11:39,829 --> 00:11:37,839 elements 328 00:11:41,350 --> 00:11:39,839 and supported life 329 00:11:43,990 --> 00:11:41,360 tube worms and 330 00:11:44,870 --> 00:11:44,000 microbial mats and so on and and and 331 00:11:46,790 --> 00:11:44,880 then 332 00:11:47,829 --> 00:11:46,800 other animals would come by and eat 333 00:11:48,790 --> 00:11:47,839 those guys 334 00:11:50,150 --> 00:11:48,800 um 335 00:11:51,509 --> 00:11:50,160 then there's the uh more the high 336 00:11:53,030 --> 00:11:51,519 temperature ones where the high 337 00:11:55,430 --> 00:11:53,040 temperature fluids are exiting at the 338 00:11:57,110 --> 00:11:55,440 seafloor those are typically metal rich 339 00:11:58,310 --> 00:11:57,120 and form the nice big sulfide ore 340 00:12:00,389 --> 00:11:58,320 deposits 341 00:12:01,829 --> 00:12:00,399 um that are on the seafloor 342 00:12:05,590 --> 00:12:01,839 and 343 00:12:08,949 --> 00:12:05,600 those are quite spectacular those can be 344 00:12:11,350 --> 00:12:08,959 10 20 meters high you know meters in 345 00:12:12,310 --> 00:12:11,360 diameter and just absolutely beautiful 346 00:12:14,550 --> 00:12:12,320 um 347 00:12:15,829 --> 00:12:14,560 and intricate with water coming out in 348 00:12:18,069 --> 00:12:15,839 different areas 349 00:12:20,870 --> 00:12:18,079 um and uh 350 00:12:24,069 --> 00:12:20,880 everything from worms to crabs to a 351 00:12:25,910 --> 00:12:24,079 whole ecosystem on the seafloor 352 00:12:28,710 --> 00:12:25,920 and then there's also other places where 353 00:12:31,670 --> 00:12:28,720 water comes out much slower let's say 354 00:12:34,230 --> 00:12:31,680 uh through mud volcanism and those can 355 00:12:37,910 --> 00:12:34,240 be everything from uh subduction zones 356 00:12:39,030 --> 00:12:37,920 that could be mostly from the deep earth 357 00:12:41,590 --> 00:12:39,040 and could be 358 00:12:44,870 --> 00:12:41,600 uh mostly methane related fluids or they 359 00:12:47,030 --> 00:12:44,880 could be from serpentine formation and 360 00:12:50,629 --> 00:12:47,040 uh hydrogen and methane rich 361 00:12:51,829 --> 00:12:50,639 so it's quite quite a variety 362 00:12:53,190 --> 00:12:51,839 yeah there's seems there's so many 363 00:12:55,030 --> 00:12:53,200 different places in the sea floor to 364 00:12:56,150 --> 00:12:55,040 study some of these really intriguing 365 00:12:57,590 --> 00:12:56,160 processes and there are lots of 366 00:12:59,590 --> 00:12:57,600 different processes 367 00:13:01,990 --> 00:12:59,600 um and for me as an astrobiologist to 368 00:13:05,509 --> 00:13:02,000 connect that then to like enceladus you 369 00:13:07,509 --> 00:13:05,519 know with nasa's cassini we observed 370 00:13:09,670 --> 00:13:07,519 with enceladus plumes of fluid coming 371 00:13:11,430 --> 00:13:09,680 out and we measured some of those plumes 372 00:13:13,829 --> 00:13:11,440 and had detections that could suggest 373 00:13:15,590 --> 00:13:13,839 the the likelihood of hydrothermal vents 374 00:13:16,870 --> 00:13:15,600 uh in that ocean 375 00:13:18,230 --> 00:13:16,880 i wonder like someone who studied 376 00:13:20,310 --> 00:13:18,240 hydrothermal vents and studied mud 377 00:13:22,790 --> 00:13:20,320 volcanoes in these processes do you 378 00:13:24,629 --> 00:13:22,800 think it's likely that many of the ocean 379 00:13:28,310 --> 00:13:24,639 worlds in our solar system and maybe 380 00:13:30,069 --> 00:13:28,320 even in the galaxy um are are you know 381 00:13:31,750 --> 00:13:30,079 have plentiful hydrothermal vent systems 382 00:13:33,269 --> 00:13:31,760 and plenty of these potential ecosystems 383 00:13:34,949 --> 00:13:33,279 as well 384 00:13:36,710 --> 00:13:34,959 uh it's entirely likely as long as 385 00:13:37,829 --> 00:13:36,720 there's some sort of techno tectonic 386 00:13:39,590 --> 00:13:37,839 forces 387 00:13:42,150 --> 00:13:39,600 uh in play 388 00:13:43,910 --> 00:13:42,160 um some of the other things uh that are 389 00:13:45,590 --> 00:13:43,920 of interest that i spend a lot of my 390 00:13:46,389 --> 00:13:45,600 effort on is some of the ridge plank 391 00:13:49,030 --> 00:13:46,399 work 392 00:13:51,750 --> 00:13:49,040 where there's uh no where where 393 00:13:54,310 --> 00:13:51,760 basically the fluid flow is driven by 394 00:13:56,629 --> 00:13:54,320 differences in conduction um and 395 00:13:57,910 --> 00:13:56,639 differences in basement topography and 396 00:13:58,870 --> 00:13:57,920 sedimentation 397 00:14:01,430 --> 00:13:58,880 so they're 398 00:14:04,310 --> 00:14:01,440 um typically lower temperature 399 00:14:07,350 --> 00:14:04,320 15 to 60 degrees celsius 400 00:14:09,350 --> 00:14:07,360 and uh less altered not so much the 401 00:14:11,829 --> 00:14:09,360 metal carrying fluids like a high 402 00:14:13,189 --> 00:14:11,839 temperature hydrothermal system 403 00:14:15,829 --> 00:14:13,199 but you don't really 404 00:14:17,670 --> 00:14:15,839 need that mantle source right there like 405 00:14:19,829 --> 00:14:17,680 a high temperature hydrothermal system 406 00:14:21,509 --> 00:14:19,839 needs a mental source of heat 407 00:14:23,750 --> 00:14:21,519 um or 408 00:14:25,030 --> 00:14:23,760 in subduction zones you need tectonic 409 00:14:27,269 --> 00:14:25,040 plates moving 410 00:14:28,949 --> 00:14:27,279 uh in one direction or another 411 00:14:31,910 --> 00:14:28,959 so so 412 00:14:33,590 --> 00:14:31,920 yeah there's a whole variety of uh means 413 00:14:35,750 --> 00:14:33,600 for fluid to flow through 414 00:14:36,710 --> 00:14:35,760 an ocean crust and to then 415 00:14:38,069 --> 00:14:36,720 uh 416 00:14:40,230 --> 00:14:38,079 advance some of these water rock 417 00:14:42,389 --> 00:14:40,240 reactions within the crust 418 00:14:44,629 --> 00:14:42,399 um so it just depends on on the 419 00:14:45,590 --> 00:14:44,639 particular planet or 420 00:14:48,949 --> 00:14:45,600 uh 421 00:14:50,150 --> 00:14:48,959 you know body that you're looking at 422 00:14:51,590 --> 00:14:50,160 it's very intriguing and you also 423 00:14:53,750 --> 00:14:51,600 mentioned you know with mud volcanoes 424 00:14:56,069 --> 00:14:53,760 and some of these serpentinizing systems 425 00:14:58,310 --> 00:14:56,079 um for our audience tibetanization is 426 00:15:00,310 --> 00:14:58,320 this process where certain minerals will 427 00:15:01,990 --> 00:15:00,320 interact with water and form things like 428 00:15:03,509 --> 00:15:02,000 hydrogen gas 429 00:15:05,670 --> 00:15:03,519 and there are creatures here on earth 430 00:15:07,509 --> 00:15:05,680 who can use that hydrogen gas and 431 00:15:08,710 --> 00:15:07,519 something like carbon dioxide and make 432 00:15:10,629 --> 00:15:08,720 methane 433 00:15:12,629 --> 00:15:10,639 as an energy source as a metabolism and 434 00:15:15,189 --> 00:15:12,639 so it's really intriguing as a place for 435 00:15:17,670 --> 00:15:15,199 us to kind of hunt um for potential 436 00:15:19,269 --> 00:15:17,680 signs of biological activity there might 437 00:15:22,550 --> 00:15:19,279 even be serpentinizing systems from the 438 00:15:24,230 --> 00:15:22,560 past on mars um for us to explore so i'm 439 00:15:25,670 --> 00:15:24,240 very glad you made that connection and 440 00:15:27,189 --> 00:15:25,680 we talked before the show a little bit 441 00:15:29,189 --> 00:15:27,199 about some of your upcoming research on 442 00:15:31,590 --> 00:15:29,199 mud volcanoes um and you mentioned 443 00:15:33,110 --> 00:15:31,600 something to me called blue mud um i'm 444 00:15:35,030 --> 00:15:33,120 wondering if you could go a little bit 445 00:15:36,470 --> 00:15:35,040 into explaining what that is and why 446 00:15:38,230 --> 00:15:36,480 that's an intriguing thing for us to 447 00:15:39,030 --> 00:15:38,240 study on the sea floor 448 00:15:41,110 --> 00:15:39,040 yeah 449 00:15:43,670 --> 00:15:41,120 serpentinization and mud volcanoes from 450 00:15:46,550 --> 00:15:43,680 it have uh existed on earth 451 00:15:48,069 --> 00:15:46,560 for uh up to maybe billions of years and 452 00:15:50,949 --> 00:15:48,079 and where it's happening right now is at 453 00:15:53,269 --> 00:15:50,959 the mariana forearc where the mariana 454 00:15:56,150 --> 00:15:53,279 trench is dipping down underneath the 455 00:15:58,629 --> 00:15:56,160 philippine trench and as that 456 00:16:00,790 --> 00:15:58,639 as a pacific plate dips underneath the 457 00:16:02,470 --> 00:16:00,800 philippine plate the philippine plate 458 00:16:04,389 --> 00:16:02,480 has some cracks in it 459 00:16:06,310 --> 00:16:04,399 the water from the pacific plate goes up 460 00:16:07,590 --> 00:16:06,320 through those cracks reacts with the 461 00:16:09,269 --> 00:16:07,600 mantle 462 00:16:11,990 --> 00:16:09,279 in the overlying plate 463 00:16:14,949 --> 00:16:12,000 and that reaction causes the water and 464 00:16:17,350 --> 00:16:14,959 the heat with the the mantle rock forms 465 00:16:19,829 --> 00:16:17,360 serpentine minerals and it forms a mud 466 00:16:22,550 --> 00:16:19,839 matrix with serpentinite minerals as 467 00:16:25,990 --> 00:16:22,560 well as water the ph of these fluids can 468 00:16:27,030 --> 00:16:26,000 be anywhere from 10 to 12 and a half 469 00:16:28,870 --> 00:16:27,040 and 470 00:16:31,509 --> 00:16:28,880 they form some of the largest mud 471 00:16:33,990 --> 00:16:31,519 volcanoes on earth up to 50 kilometers 472 00:16:36,870 --> 00:16:34,000 wide and four kilometers high 473 00:16:38,870 --> 00:16:36,880 and the mud itself is blue it's the only 474 00:16:40,870 --> 00:16:38,880 place i've ever gone 475 00:16:41,990 --> 00:16:40,880 um where you find naturally occurring 476 00:16:44,949 --> 00:16:42,000 blue mud 477 00:16:45,910 --> 00:16:44,959 and we don't know exactly why it's blue 478 00:16:48,310 --> 00:16:45,920 um 479 00:16:51,509 --> 00:16:48,320 but when you have it out on the counter 480 00:16:54,710 --> 00:16:51,519 and it's exposed to atmospheric oxygen 481 00:16:56,470 --> 00:16:54,720 um over a period of a couple of days it 482 00:16:58,870 --> 00:16:56,480 turns green sort of what you would 483 00:17:01,910 --> 00:16:58,880 expect from a serpentine diet so it has 484 00:17:03,990 --> 00:17:01,920 something to do with the the way it's 485 00:17:06,549 --> 00:17:04,000 reduced fluids or gases that are 486 00:17:08,069 --> 00:17:06,559 dissolved or part of the matrix that 487 00:17:09,750 --> 00:17:08,079 make it form blue 488 00:17:11,990 --> 00:17:09,760 a blue color but it's 489 00:17:13,590 --> 00:17:12,000 it's quite fascinating and as you 490 00:17:15,829 --> 00:17:13,600 pointed out too there's microbes that 491 00:17:17,110 --> 00:17:15,839 live in that system 492 00:17:19,110 --> 00:17:17,120 and so 493 00:17:20,870 --> 00:17:19,120 as a conveyor belt from the pacific 494 00:17:22,230 --> 00:17:20,880 plate the big question is 495 00:17:24,309 --> 00:17:22,240 do you get some of these microbes that 496 00:17:26,630 --> 00:17:24,319 take the conveyor belt down and then 497 00:17:28,870 --> 00:17:26,640 come back up uh through some of these 498 00:17:32,630 --> 00:17:28,880 mud volcanoes some of them only get up 499 00:17:33,510 --> 00:17:32,640 to 150 degrees celsius some even less 500 00:17:35,270 --> 00:17:33,520 um 501 00:17:38,070 --> 00:17:35,280 probably the ones that come up you know 502 00:17:40,390 --> 00:17:38,080 they reach warmer temperatures like 250 503 00:17:42,470 --> 00:17:40,400 degrees celsius at depth probably 504 00:17:44,470 --> 00:17:42,480 there's no microbes there but 505 00:17:46,950 --> 00:17:44,480 but there's potential for the that whole 506 00:17:49,270 --> 00:17:46,960 cycle and loop and 507 00:17:50,710 --> 00:17:49,280 since these mud volcanoes are 508 00:17:53,669 --> 00:17:50,720 some of them are probably 50 million 509 00:17:56,230 --> 00:17:53,679 years old you have an ample time for 510 00:17:58,070 --> 00:17:56,240 abiotic reactions at these high ph's 511 00:18:01,350 --> 00:17:58,080 high methane 512 00:18:02,870 --> 00:18:01,360 high hydrogen uh fluids to 513 00:18:04,230 --> 00:18:02,880 potentially form 514 00:18:06,390 --> 00:18:04,240 um 515 00:18:08,950 --> 00:18:06,400 simple inorganics and and other 516 00:18:10,630 --> 00:18:08,960 molecules that may be uh quite helpful 517 00:18:12,390 --> 00:18:10,640 for life 518 00:18:13,909 --> 00:18:12,400 yeah and when i mean we really are just 519 00:18:16,310 --> 00:18:13,919 getting to touch the tip of the iceberg 520 00:18:18,230 --> 00:18:16,320 really and what lives in the ocean and 521 00:18:20,470 --> 00:18:18,240 and and what things dwell in the ocean 522 00:18:21,990 --> 00:18:20,480 sediments as well i love that idea of 523 00:18:24,470 --> 00:18:22,000 some organisms potentially going down 524 00:18:26,390 --> 00:18:24,480 the conveyor belt and back up again um 525 00:18:29,590 --> 00:18:26,400 you know the ocean floor it has so much 526 00:18:31,909 --> 00:18:29,600 for us to still explore and to learn uh 527 00:18:34,630 --> 00:18:31,919 we even on twitter through nasa astrobio 528 00:18:37,190 --> 00:18:34,640 we asked our audience um roughly how 529 00:18:39,590 --> 00:18:37,200 much of the seafloor has been explored 530 00:18:41,029 --> 00:18:39,600 um based on current estimates 531 00:18:45,110 --> 00:18:41,039 we had some different answers come in at 532 00:18:47,750 --> 00:18:45,120 10 15 20 and 25 percent uh most people 533 00:18:49,990 --> 00:18:47,760 said 10 some said even less 534 00:18:52,710 --> 00:18:50,000 um but actually right now the number 535 00:18:54,470 --> 00:18:52,720 somewhere around 20 or so of high 536 00:18:56,870 --> 00:18:54,480 resolution mapping has occurred on the 537 00:18:58,470 --> 00:18:56,880 sea floor but then for exploration for 538 00:19:00,549 --> 00:18:58,480 going down and seeing what organisms 539 00:19:03,029 --> 00:19:00,559 there it seems that there's so there's 540 00:19:04,789 --> 00:19:03,039 still so much left for us to explore 541 00:19:06,310 --> 00:19:04,799 on the seafloor i remember when i was an 542 00:19:08,470 --> 00:19:06,320 undergraduate student we had this this 543 00:19:10,789 --> 00:19:08,480 course it was a marine ecology of the 544 00:19:13,029 --> 00:19:10,799 chesapeake bay and it was the first time 545 00:19:15,029 --> 00:19:13,039 i learned about whale fall uh that when 546 00:19:17,190 --> 00:19:15,039 the bodies of citations when they die 547 00:19:18,789 --> 00:19:17,200 their bodies fall to the ocean floor and 548 00:19:20,950 --> 00:19:18,799 they create these environments where 549 00:19:22,710 --> 00:19:20,960 microbes and other things can come in 550 00:19:24,710 --> 00:19:22,720 and dwell not just for you know a few 551 00:19:27,270 --> 00:19:24,720 years as they break down the whale but 552 00:19:29,430 --> 00:19:27,280 for centuries as as the whale's body is 553 00:19:31,830 --> 00:19:29,440 degraded and eaten and kind of adds this 554 00:19:33,270 --> 00:19:31,840 chemical environment uh so dr v i'm 555 00:19:35,990 --> 00:19:33,280 wondering if you can give us kind of 556 00:19:38,150 --> 00:19:36,000 your vision of you know what is the sea 557 00:19:41,029 --> 00:19:38,160 floor to us humans why should we go 558 00:19:42,710 --> 00:19:41,039 explore this yet unexplored environment 559 00:19:44,950 --> 00:19:42,720 in some cases what is it we learn from 560 00:19:46,470 --> 00:19:44,960 these creatures and processes on the 561 00:19:48,710 --> 00:19:46,480 deep sea 562 00:19:50,710 --> 00:19:48,720 yeah well um i would say even though 563 00:19:53,350 --> 00:19:50,720 maybe 20 percent of the sea floor has 564 00:19:56,070 --> 00:19:53,360 been mapped you still have problems with 565 00:19:57,750 --> 00:19:56,080 uh let's say nuclear subs u.s navy subs 566 00:19:58,630 --> 00:19:57,760 running into sea mounts 567 00:20:00,470 --> 00:19:58,640 um 568 00:20:03,190 --> 00:20:00,480 which was just recently another one did 569 00:20:05,830 --> 00:20:03,200 that and uh so i would say 570 00:20:07,430 --> 00:20:05,840 maybe i mean obviously we need to do a 571 00:20:09,669 --> 00:20:07,440 better job and 572 00:20:12,230 --> 00:20:09,679 of more mapping and more coverage 573 00:20:13,990 --> 00:20:12,240 but as for the actual being down there 574 00:20:15,510 --> 00:20:14,000 and seeing things i would say it's way 575 00:20:18,549 --> 00:20:15,520 less than one percent 576 00:20:21,029 --> 00:20:18,559 um and sort of a case in point uh we 577 00:20:22,630 --> 00:20:21,039 were doing some work off costa rica at 578 00:20:25,430 --> 00:20:22,640 dorado outcrop 579 00:20:28,470 --> 00:20:25,440 um and it was a purely geochemical 580 00:20:29,669 --> 00:20:28,480 geophysical uh and some microbiology 581 00:20:32,470 --> 00:20:29,679 format 582 00:20:34,870 --> 00:20:32,480 um and and getting us there and we 583 00:20:37,350 --> 00:20:34,880 discovered all these female octopuses 584 00:20:40,149 --> 00:20:37,360 that were um sitting in the warm 585 00:20:42,070 --> 00:20:40,159 hydrothermal fluids with their egg cases 586 00:20:44,870 --> 00:20:42,080 um and they were 587 00:20:47,510 --> 00:20:44,880 just in those hydrothermal areas where 588 00:20:49,270 --> 00:20:47,520 the water is coming out you know just 589 00:20:51,029 --> 00:20:49,280 you know five meters away 590 00:20:53,270 --> 00:20:51,039 there were no you know where there's no 591 00:20:54,950 --> 00:20:53,280 water coming out there's no octopuses 592 00:20:55,909 --> 00:20:54,960 and there were hundreds of them 593 00:20:58,310 --> 00:20:55,919 and then 594 00:21:00,149 --> 00:20:58,320 um a couple of years ago on davidson 595 00:21:03,669 --> 00:21:00,159 seamount off california 596 00:21:06,149 --> 00:21:03,679 they found thousands of octopuses 597 00:21:07,990 --> 00:21:06,159 similar to these all laying their eggs 598 00:21:10,149 --> 00:21:08,000 all in hydrothermal all in 599 00:21:11,029 --> 00:21:10,159 low-temperature hydrothermal fluids 600 00:21:14,070 --> 00:21:11,039 and 601 00:21:16,630 --> 00:21:14,080 uh you know it's just a a whole set of 602 00:21:18,230 --> 00:21:16,640 ecology that we never learned about and 603 00:21:19,350 --> 00:21:18,240 the only reason why we did was because 604 00:21:21,750 --> 00:21:19,360 we were 605 00:21:22,549 --> 00:21:21,760 down there for another purpose um 606 00:21:24,630 --> 00:21:22,559 so 607 00:21:26,870 --> 00:21:24,640 i i would say there's very little is 608 00:21:28,870 --> 00:21:26,880 known um 609 00:21:31,110 --> 00:21:28,880 about the ecology and then there's the 610 00:21:34,310 --> 00:21:31,120 question about ecosystem services you 611 00:21:36,710 --> 00:21:34,320 know what what are these um areas these 612 00:21:38,630 --> 00:21:36,720 hydrothermal areas doing 613 00:21:40,789 --> 00:21:38,640 like say for the octopuses how important 614 00:21:42,149 --> 00:21:40,799 is that on a global scale or for a 615 00:21:44,230 --> 00:21:42,159 species scale 616 00:21:46,070 --> 00:21:44,240 and then what what are they doing by 617 00:21:47,909 --> 00:21:46,080 distributing carbon by going to these 618 00:21:49,909 --> 00:21:47,919 particular sites and living there and 619 00:21:51,430 --> 00:21:49,919 moving back and forth and so on so i 620 00:21:53,750 --> 00:21:51,440 think there's a lot 621 00:21:55,110 --> 00:21:53,760 that we we just don't know 622 00:21:57,590 --> 00:21:55,120 um 623 00:21:59,750 --> 00:21:57,600 you know going there is a step step you 624 00:22:01,270 --> 00:21:59,760 know the first step 625 00:22:03,029 --> 00:22:01,280 that's incredible yeah and it makes me 626 00:22:04,390 --> 00:22:03,039 want to go explore i've been diving in 627 00:22:05,750 --> 00:22:04,400 the ocean before 628 00:22:07,590 --> 00:22:05,760 but certainly have nowhere near the 629 00:22:09,270 --> 00:22:07,600 experience you have of seeing the ocean 630 00:22:10,630 --> 00:22:09,280 first hand and experiencing the ocean 631 00:22:13,430 --> 00:22:10,640 first hand 632 00:22:15,590 --> 00:22:13,440 i currently live in colorado and we have 633 00:22:18,710 --> 00:22:15,600 no oceans nearby that i can just drive 634 00:22:20,149 --> 00:22:18,720 to and i do miss the feeling um of being 635 00:22:21,590 --> 00:22:20,159 close to the ocean being close to the 636 00:22:23,510 --> 00:22:21,600 sea i think it's been a call for 637 00:22:25,350 --> 00:22:23,520 humanity for a long time 638 00:22:26,630 --> 00:22:25,360 and it's been a call for us to want to 639 00:22:28,549 --> 00:22:26,640 explore 640 00:22:30,789 --> 00:22:28,559 i'm wondering you know what what kind of 641 00:22:33,110 --> 00:22:30,799 advice do you have for potential young 642 00:22:34,710 --> 00:22:33,120 explorers right now who want to get 643 00:22:36,149 --> 00:22:34,720 involved in your line of work and get 644 00:22:37,990 --> 00:22:36,159 involved in these research studies on 645 00:22:39,590 --> 00:22:38,000 the sea floor 646 00:22:41,110 --> 00:22:39,600 um i think there's many different 647 00:22:43,430 --> 00:22:41,120 avenues there's certainly a lot of 648 00:22:45,909 --> 00:22:43,440 programs now that have um 649 00:22:48,950 --> 00:22:45,919 started in the last decade to get 650 00:22:50,950 --> 00:22:48,960 undergraduates involved in research as 651 00:22:53,909 --> 00:22:50,960 and also to get them out to sea 652 00:22:55,830 --> 00:22:53,919 um so there's a variety of different 653 00:22:57,510 --> 00:22:55,840 programs i'd say 654 00:22:59,430 --> 00:22:57,520 contact maybe some of the larger 655 00:23:02,230 --> 00:22:59,440 oceanographic schools 656 00:23:04,230 --> 00:23:02,240 universities they usually have 657 00:23:05,669 --> 00:23:04,240 people going to see and people need 658 00:23:07,110 --> 00:23:05,679 people to join them 659 00:23:10,070 --> 00:23:07,120 if you're more involved in the 660 00:23:12,070 --> 00:23:10,080 technology there's the mate program 661 00:23:15,029 --> 00:23:12,080 that's run out of monterey peninsula 662 00:23:17,909 --> 00:23:15,039 college but it's a broader system now 663 00:23:19,669 --> 00:23:17,919 and that was designed to get people 664 00:23:21,190 --> 00:23:19,679 maybe some of the engineering that have 665 00:23:23,350 --> 00:23:21,200 an engineering background or an 666 00:23:25,909 --> 00:23:23,360 operations background to get some 667 00:23:27,990 --> 00:23:25,919 experience and get to see 668 00:23:31,909 --> 00:23:28,000 so i think there's there's different 669 00:23:35,430 --> 00:23:33,669 yeah i was i was very fortunate as an 670 00:23:37,270 --> 00:23:35,440 undergraduate student i was accepted 671 00:23:39,350 --> 00:23:37,280 into an reu program it's a research 672 00:23:40,870 --> 00:23:39,360 experiences for undergraduates program 673 00:23:43,510 --> 00:23:40,880 at the graduate school of oceanography 674 00:23:45,909 --> 00:23:43,520 in rhode island in narragansett bay 675 00:23:48,390 --> 00:23:45,919 i worked with dr tatiana reinerson 676 00:23:49,909 --> 00:23:48,400 on a project extracting dna from diatoms 677 00:23:52,870 --> 00:23:49,919 from different places around the two 678 00:23:54,950 --> 00:23:52,880 coasts of the continental united states 679 00:23:56,390 --> 00:23:54,960 and many younger people kind of 680 00:23:58,230 --> 00:23:56,400 have used similar programs to get 681 00:23:59,750 --> 00:23:58,240 involved in research as well so yes i 682 00:24:01,909 --> 00:23:59,760 highly recommend those 683 00:24:03,669 --> 00:24:01,919 um so for our audience who are watching 684 00:24:05,510 --> 00:24:03,679 please remember you can ask questions 685 00:24:07,669 --> 00:24:05,520 right now in the chat 686 00:24:10,549 --> 00:24:07,679 on facebook or in youtube if you're 687 00:24:12,390 --> 00:24:10,559 watching there um and you know bring 688 00:24:14,390 --> 00:24:12,400 your questions to dr wheat about all of 689 00:24:16,630 --> 00:24:14,400 his research all of his experience on 690 00:24:18,710 --> 00:24:16,640 the ocean floor and submersibles and in 691 00:24:20,630 --> 00:24:18,720 some of these systems we've discussed 692 00:24:22,310 --> 00:24:20,640 um i always have to kind of relate 693 00:24:23,830 --> 00:24:22,320 things myself to 694 00:24:25,510 --> 00:24:23,840 you know our knowledge of the earth our 695 00:24:27,269 --> 00:24:25,520 knowledge of space what we're doing and 696 00:24:29,269 --> 00:24:27,279 exploring all these different areas but 697 00:24:32,310 --> 00:24:29,279 i also like talking about things like 698 00:24:33,990 --> 00:24:32,320 science fiction and culture um for me i 699 00:24:35,669 --> 00:24:34,000 was very inspired to want to learn how 700 00:24:37,830 --> 00:24:35,679 to dive as a kid and learn more about 701 00:24:38,870 --> 00:24:37,840 the ocean from things like the film the 702 00:24:41,029 --> 00:24:38,880 abyss 703 00:24:43,110 --> 00:24:41,039 um i wonder dr rita is there any 704 00:24:45,909 --> 00:24:43,120 anything in like writing or film that 705 00:24:48,710 --> 00:24:45,919 really inspired you or that you find uh 706 00:24:51,510 --> 00:24:48,720 does a good job of explaining why we go 707 00:24:53,990 --> 00:24:51,520 out to the ocean and explore 708 00:24:55,590 --> 00:24:54,000 oh that's a good question um 709 00:24:56,390 --> 00:24:55,600 i don't know if i have a real answer for 710 00:24:57,990 --> 00:24:56,400 that 711 00:25:00,789 --> 00:24:58,000 um 712 00:25:04,070 --> 00:25:00,799 you know i'm i guess i'm one 713 00:25:06,070 --> 00:25:04,080 uh person that likes doing things um 714 00:25:08,789 --> 00:25:06,080 and and just uh 715 00:25:11,350 --> 00:25:08,799 you know being there and doing that um 716 00:25:12,390 --> 00:25:11,360 and diving and finding different things 717 00:25:14,470 --> 00:25:12,400 um 718 00:25:17,350 --> 00:25:14,480 i started off scuba diving 719 00:25:18,710 --> 00:25:17,360 and like like yourself and going to 720 00:25:20,870 --> 00:25:18,720 shallow root and 721 00:25:23,110 --> 00:25:20,880 uh finding things working on things on 722 00:25:24,710 --> 00:25:23,120 the seafloor mostly uh getting lobster 723 00:25:27,110 --> 00:25:24,720 traps untangled 724 00:25:28,470 --> 00:25:27,120 and other things like that but uh 725 00:25:30,870 --> 00:25:28,480 um 726 00:25:32,070 --> 00:25:30,880 i i don't know if i actually have uh a 727 00:25:33,430 --> 00:25:32,080 nice 728 00:25:36,710 --> 00:25:33,440 you know 729 00:25:37,909 --> 00:25:36,720 sort of movie bent to it 730 00:25:39,510 --> 00:25:37,919 yeah no worries 731 00:25:42,549 --> 00:25:39,520 you know i mean i'm just kind of that 732 00:25:44,230 --> 00:25:42,559 kind of nerd um but i do wonder so uh we 733 00:25:46,310 --> 00:25:44,240 do have some video footage we're sharing 734 00:25:48,630 --> 00:25:46,320 um on the live stream as we discuss 735 00:25:51,029 --> 00:25:48,640 these things um we're wondering if you 736 00:25:53,269 --> 00:25:51,039 can share some of that process of of 737 00:25:54,870 --> 00:25:53,279 sampling from the sea floor um what 738 00:25:57,510 --> 00:25:54,880 that's like with both you know human in 739 00:25:59,190 --> 00:25:57,520 a submersible uh versus a robot what 740 00:26:01,190 --> 00:25:59,200 kinds of materials are you often 741 00:26:04,390 --> 00:26:01,200 collecting uh for your research from the 742 00:26:05,830 --> 00:26:04,400 sea floor um and also i discovered in 743 00:26:08,149 --> 00:26:05,840 talking to prep for the show that 744 00:26:10,070 --> 00:26:08,159 there's uh the capability of taking 745 00:26:12,230 --> 00:26:10,080 samples from the surface from the 746 00:26:14,070 --> 00:26:12,240 subsurface to the surface without taking 747 00:26:16,549 --> 00:26:14,080 the sub back and i'd love to hear more 748 00:26:18,789 --> 00:26:16,559 about that for our audience as well 749 00:26:21,590 --> 00:26:18,799 yeah so so uh 750 00:26:23,669 --> 00:26:21,600 um i guess one of the things i do a lot 751 00:26:25,669 --> 00:26:23,679 of is collect samples 752 00:26:27,669 --> 00:26:25,679 i mostly collect fluids 753 00:26:29,590 --> 00:26:27,679 and 754 00:26:32,149 --> 00:26:29,600 we have different different types of 755 00:26:33,909 --> 00:26:32,159 samplers depending on the fluids if it's 756 00:26:35,750 --> 00:26:33,919 a high temperature fluid you want a 757 00:26:38,470 --> 00:26:35,760 titanium sampler 758 00:26:41,830 --> 00:26:38,480 because it doesn't dissolve or react 759 00:26:43,430 --> 00:26:41,840 even at 300 degrees celsius 760 00:26:45,350 --> 00:26:43,440 on the other hand some of the low 761 00:26:48,070 --> 00:26:45,360 temperature fluids that we collect 762 00:26:50,070 --> 00:26:48,080 are maybe 10 or 15 degrees celsius and 763 00:26:52,710 --> 00:26:50,080 we have special samplers that we make 764 00:26:55,750 --> 00:26:52,720 out of plastics or glass 765 00:26:57,269 --> 00:26:55,760 glass so that we can avoid any organic 766 00:26:58,230 --> 00:26:57,279 contamination 767 00:27:00,230 --> 00:26:58,240 and 768 00:27:01,430 --> 00:27:00,240 some of the low temperature ones 769 00:27:03,590 --> 00:27:01,440 um 770 00:27:05,430 --> 00:27:03,600 are you know we need smaller and smaller 771 00:27:07,269 --> 00:27:05,440 volumes because the analytical aspects 772 00:27:08,630 --> 00:27:07,279 are getting better 773 00:27:09,669 --> 00:27:08,640 so 774 00:27:14,470 --> 00:27:09,679 um 775 00:27:17,190 --> 00:27:14,480 one of the things i've been involved in 776 00:27:17,990 --> 00:27:17,200 is uh scientific ocean drilling 777 00:27:19,750 --> 00:27:18,000 and 778 00:27:21,750 --> 00:27:19,760 in scientific ocean drilling we're able 779 00:27:22,870 --> 00:27:21,760 to drill through the sediment into the 780 00:27:24,549 --> 00:27:22,880 basalt 781 00:27:27,029 --> 00:27:24,559 uh case the hole 782 00:27:29,190 --> 00:27:27,039 and then lower instruments in the hole 783 00:27:32,789 --> 00:27:29,200 that can then sample fluids over a 784 00:27:35,830 --> 00:27:32,799 period of time or discreetly by pumping 785 00:27:38,470 --> 00:27:35,840 on one of the valves and 786 00:27:41,269 --> 00:27:38,480 one of the umbilicals to extract water 787 00:27:42,710 --> 00:27:41,279 from a particular horizon in the hole 788 00:27:44,870 --> 00:27:42,720 so um 789 00:27:46,389 --> 00:27:44,880 as a result we we've had to develop 790 00:27:48,950 --> 00:27:46,399 different ways of 791 00:27:51,750 --> 00:27:48,960 being able to get uh get that water out 792 00:27:53,830 --> 00:27:51,760 and with the holes and as well as 793 00:27:55,830 --> 00:27:53,840 sealing the holes so that it's uh nice 794 00:27:58,549 --> 00:27:55,840 and tight so that we're not getting 795 00:27:59,909 --> 00:27:58,559 extraneous flow from other areas 796 00:28:03,190 --> 00:27:59,919 and um 797 00:28:05,269 --> 00:28:03,200 uh yeah it's uh it's i i've spent many 798 00:28:07,269 --> 00:28:05,279 years um at 799 00:28:09,669 --> 00:28:07,279 with an office at the monterey bay 800 00:28:12,310 --> 00:28:09,679 aquarium research institute and 801 00:28:14,070 --> 00:28:12,320 the one of the good things of 802 00:28:16,470 --> 00:28:14,080 that interaction has been working with 803 00:28:19,350 --> 00:28:16,480 the engineers to help develop some of 804 00:28:22,710 --> 00:28:19,360 these techniques and to advance uh some 805 00:28:27,029 --> 00:28:24,230 yeah that's very cool 806 00:28:28,310 --> 00:28:27,039 um i'm wondering if you if you had a 807 00:28:29,750 --> 00:28:28,320 grant 808 00:28:30,789 --> 00:28:29,760 let's just say like you know a billion 809 00:28:32,950 --> 00:28:30,799 dollars or something just something 810 00:28:33,909 --> 00:28:32,960 crazy um if you had like unlimited 811 00:28:35,830 --> 00:28:33,919 funding 812 00:28:37,990 --> 00:28:35,840 um what would you want to study like 813 00:28:40,070 --> 00:28:38,000 right now in the ocean what's like the 814 00:28:41,269 --> 00:28:40,080 most impressing thing for you right now 815 00:28:43,029 --> 00:28:41,279 in your research that you'd love to 816 00:28:45,830 --> 00:28:43,039 study if you could 817 00:28:48,310 --> 00:28:45,840 so um one of the things that i work with 818 00:28:50,789 --> 00:28:48,320 a lot of microbiologists and one aspect 819 00:28:53,590 --> 00:28:50,799 is what's living in the oceans in the 820 00:28:55,990 --> 00:28:53,600 subsea floor how is it living there 821 00:28:56,870 --> 00:28:56,000 how is it getting transported what sort 822 00:28:59,990 --> 00:28:56,880 of 823 00:29:02,070 --> 00:29:00,000 uh reactions are taking place to 824 00:29:03,990 --> 00:29:02,080 dissolve minerals in one area and 825 00:29:05,110 --> 00:29:04,000 transport the solutes in another area 826 00:29:07,350 --> 00:29:05,120 and so on 827 00:29:09,350 --> 00:29:07,360 and there's a lot of boreholes that have 828 00:29:11,350 --> 00:29:09,360 been drilled in the last 50 years as 829 00:29:14,070 --> 00:29:11,360 part of scientific ocean drilling 830 00:29:16,950 --> 00:29:14,080 and a bunch of them were cased and are 831 00:29:20,630 --> 00:29:16,960 open um at depth 832 00:29:22,710 --> 00:29:20,640 and so i would develop a 833 00:29:25,190 --> 00:29:22,720 sensor sampling system that we could 834 00:29:26,710 --> 00:29:25,200 lower into those bore holes and to be 835 00:29:29,590 --> 00:29:26,720 able to 836 00:29:31,669 --> 00:29:29,600 set up around some of the hydraulic 837 00:29:33,830 --> 00:29:31,679 areas where there's a very permeable 838 00:29:36,149 --> 00:29:33,840 areas where water flows and be able to 839 00:29:38,310 --> 00:29:36,159 sit there and collect that fluid seems 840 00:29:40,389 --> 00:29:38,320 like most of the water that flows 841 00:29:42,389 --> 00:29:40,399 through the ocean crust 842 00:29:43,430 --> 00:29:42,399 occurs in about less than one percent of 843 00:29:46,549 --> 00:29:43,440 the rock 844 00:29:49,269 --> 00:29:46,559 so it's very focused um and to be able 845 00:29:51,110 --> 00:29:49,279 to sample some of that fluid 846 00:29:52,230 --> 00:29:51,120 for both the chemical and microbial 847 00:29:54,389 --> 00:29:52,240 aspects 848 00:29:55,590 --> 00:29:54,399 that sounds pretty incredible um maybe 849 00:29:57,590 --> 00:29:55,600 we'll write that grant and get a billion 850 00:30:00,389 --> 00:29:57,600 dollars 851 00:30:02,470 --> 00:30:00,399 um so so we did talk before the show 852 00:30:05,350 --> 00:30:02,480 uh and i learned that that you've also 853 00:30:08,310 --> 00:30:05,360 developed this this camp uh for young 854 00:30:09,590 --> 00:30:08,320 people to become to get motivated about 855 00:30:12,149 --> 00:30:09,600 marine science to learn about 856 00:30:13,750 --> 00:30:12,159 oceanography um i'm wondering if you can 857 00:30:16,310 --> 00:30:13,760 share a little bit about this camp 858 00:30:18,389 --> 00:30:16,320 you've developed uh and and what you've 859 00:30:21,510 --> 00:30:18,399 experienced in seeing young people 860 00:30:22,789 --> 00:30:21,520 getting interested in in oceanography 861 00:30:25,909 --> 00:30:22,799 well um 862 00:30:27,669 --> 00:30:25,919 i i i do this uh i started this camp 863 00:30:29,510 --> 00:30:27,679 because i wanted to get back 864 00:30:31,830 --> 00:30:29,520 um i've been very 865 00:30:33,430 --> 00:30:31,840 i've been blessed with having the 866 00:30:35,990 --> 00:30:33,440 opportunity to 867 00:30:38,710 --> 00:30:36,000 uh have the career that i've had had the 868 00:30:41,110 --> 00:30:38,720 experience that i i've had and so i 869 00:30:43,669 --> 00:30:41,120 thought one way of giving back would be 870 00:30:45,830 --> 00:30:43,679 to set up a camp um 871 00:30:47,750 --> 00:30:45,840 and most camps are you know you kick a 872 00:30:50,870 --> 00:30:47,760 ball around or 873 00:30:52,470 --> 00:30:50,880 maybe you're coding um and what i wanted 874 00:30:54,149 --> 00:30:52,480 to do is have a 875 00:30:56,710 --> 00:30:54,159 camp that had more technology and 876 00:30:57,830 --> 00:30:56,720 science uh merged and where everything's 877 00:31:02,230 --> 00:30:57,840 hands-on 878 00:31:06,710 --> 00:31:02,240 activities 879 00:31:09,029 --> 00:31:06,720 around the theme of the seafloor and the 880 00:31:11,029 --> 00:31:09,039 science that um is conducted on the 881 00:31:12,070 --> 00:31:11,039 seafloor and the operations that are 882 00:31:15,110 --> 00:31:12,080 required 883 00:31:17,909 --> 00:31:15,120 uh to actually do the do that science 884 00:31:19,110 --> 00:31:17,919 so we've got um uh summer camps 885 00:31:20,950 --> 00:31:19,120 week-long 886 00:31:22,710 --> 00:31:20,960 days summer camps for 887 00:31:24,950 --> 00:31:22,720 third to fifth graders sixth to ninth 888 00:31:27,509 --> 00:31:24,960 graders and then uh last year we 889 00:31:30,149 --> 00:31:27,519 developed one for eight to ten graders 890 00:31:32,630 --> 00:31:30,159 um all different levels of complexity 891 00:31:34,470 --> 00:31:32,640 all with four hands-on activities 892 00:31:36,310 --> 00:31:34,480 per day and 893 00:31:38,710 --> 00:31:36,320 all with the goal of expanding the 894 00:31:40,630 --> 00:31:38,720 understanding of what happens at the sea 895 00:31:42,950 --> 00:31:40,640 floor and sub-sea floor 896 00:31:45,269 --> 00:31:42,960 and uh how you get the 897 00:31:47,430 --> 00:31:45,279 to do the science 898 00:31:49,669 --> 00:31:47,440 that's so cool yeah and in 2019 i was 899 00:31:51,110 --> 00:31:49,679 fortunate i was a leader 900 00:31:53,269 --> 00:31:51,120 for the national geographic student 901 00:31:56,149 --> 00:31:53,279 expeditions uh we took some high school 902 00:31:58,389 --> 00:31:56,159 level students into the boston harbor um 903 00:32:00,070 --> 00:31:58,399 with the massachusetts sea grant uh and 904 00:32:02,310 --> 00:32:00,080 we we had them spend some time 905 00:32:04,230 --> 00:32:02,320 developing uh underwater submersibles 906 00:32:06,070 --> 00:32:04,240 using legos and then they went in and 907 00:32:08,470 --> 00:32:06,080 explored and uh some of them were trying 908 00:32:11,190 --> 00:32:08,480 to catch fish or to use some some bait 909 00:32:12,470 --> 00:32:11,200 to lure crabs over to them others were 910 00:32:14,630 --> 00:32:12,480 trying to answer some scientific 911 00:32:16,470 --> 00:32:14,640 questions about the phytoplankton and 912 00:32:18,070 --> 00:32:16,480 things like that in the water and it was 913 00:32:20,470 --> 00:32:18,080 a really cool experience seeing these 914 00:32:22,149 --> 00:32:20,480 young students kind of engage with the 915 00:32:24,710 --> 00:32:22,159 harbor and engage with you know this 916 00:32:26,470 --> 00:32:24,720 marine life that occurs uh so close to 917 00:32:28,149 --> 00:32:26,480 us so i'm so glad with this camp that 918 00:32:30,389 --> 00:32:28,159 you've developed this way for these 919 00:32:32,549 --> 00:32:30,399 young students to kind of get interested 920 00:32:33,990 --> 00:32:32,559 and to learn about you know sampling and 921 00:32:34,870 --> 00:32:34,000 learning about the ocean and what that 922 00:32:36,789 --> 00:32:34,880 means 923 00:32:38,470 --> 00:32:36,799 um i would like to ask one more question 924 00:32:40,230 --> 00:32:38,480 of my own before we open it up then to 925 00:32:42,389 --> 00:32:40,240 the audience q a 926 00:32:44,549 --> 00:32:42,399 um i'm curious you know you so you've 927 00:32:46,870 --> 00:32:44,559 been a researcher with ambari um there 928 00:32:49,190 --> 00:32:46,880 are various aquaria around the world 929 00:32:51,509 --> 00:32:49,200 where people can go and experience 930 00:32:54,070 --> 00:32:51,519 sea life i'm i'm wondering as someone 931 00:32:56,310 --> 00:32:54,080 who's a researcher who's been out to sea 932 00:32:58,789 --> 00:32:56,320 um if you can speak to the importance of 933 00:33:00,310 --> 00:32:58,799 aquaria um for those who maybe don't 934 00:33:02,950 --> 00:33:00,320 have the opportunity to go out to the 935 00:33:04,950 --> 00:33:02,960 ocean to see marine life and to 936 00:33:07,509 --> 00:33:04,960 understand marine life and what aquaria 937 00:33:09,830 --> 00:33:07,519 are doing for us uh in the science of 938 00:33:13,509 --> 00:33:09,840 understanding the oceans 939 00:33:15,990 --> 00:33:13,519 yeah um aquaria aquariums are 940 00:33:17,990 --> 00:33:16,000 great places for people to go see 941 00:33:19,190 --> 00:33:18,000 organisms that they would never see 942 00:33:21,909 --> 00:33:19,200 otherwise 943 00:33:23,669 --> 00:33:21,919 and the the beauty um 944 00:33:25,830 --> 00:33:23,679 i i know most people when you're on the 945 00:33:27,350 --> 00:33:25,840 beach if you see a jellyfish you know 946 00:33:29,269 --> 00:33:27,360 you run 947 00:33:31,830 --> 00:33:29,279 you don't want to get stung but uh they 948 00:33:35,350 --> 00:33:31,840 are just beautiful creatures and 949 00:33:36,950 --> 00:33:35,360 an aquarium sets that into place um 950 00:33:39,269 --> 00:33:36,960 one of one of the interesting things 951 00:33:41,590 --> 00:33:39,279 about the summer camp is we take little 952 00:33:42,950 --> 00:33:41,600 off we take rovs and we put them in 953 00:33:44,549 --> 00:33:42,960 monterey harbor 954 00:33:46,789 --> 00:33:44,559 um and 955 00:33:49,269 --> 00:33:46,799 you know the the kids most of the kids 956 00:33:51,430 --> 00:33:49,279 have been to the aquarium and then they 957 00:33:53,350 --> 00:33:51,440 go and put the rovs in the water and see 958 00:33:56,070 --> 00:33:53,360 different things you know you might see 959 00:33:57,190 --> 00:33:56,080 a shoe or a can or something else where 960 00:34:00,310 --> 00:33:57,200 you're not going to see that at the 961 00:34:02,389 --> 00:34:00,320 aquarium but but they do see all the 962 00:34:04,230 --> 00:34:02,399 organisms but in the aquarium you 963 00:34:05,509 --> 00:34:04,240 actually get to see them up close and 964 00:34:19,190 --> 00:34:05,519 personal and 965 00:34:23,109 --> 00:34:20,230 um 966 00:34:25,990 --> 00:34:23,119 are engaged in conservation and other 967 00:34:27,589 --> 00:34:26,000 efforts and both sample collection 968 00:34:30,149 --> 00:34:27,599 as well as 969 00:34:32,470 --> 00:34:30,159 letting people know what what 970 00:34:35,270 --> 00:34:32,480 what is important in the ocean 971 00:34:37,349 --> 00:34:35,280 to be able to conserve what we have or 972 00:34:38,389 --> 00:34:37,359 to maintain what we have 973 00:34:39,669 --> 00:34:38,399 um 974 00:34:42,550 --> 00:34:39,679 and 975 00:34:44,550 --> 00:34:42,560 uh yeah i i grew up on the east coast 976 00:34:45,669 --> 00:34:44,560 and when i was a kid there was plenty of 977 00:34:48,710 --> 00:34:45,679 cod 978 00:34:51,030 --> 00:34:48,720 uh there isn't any more um 979 00:34:52,389 --> 00:34:51,040 and if we had a little more conservation 980 00:34:54,869 --> 00:34:52,399 back then 981 00:34:56,550 --> 00:34:54,879 you know maybe that wouldn't be the case 982 00:34:58,870 --> 00:34:56,560 yeah it's so crucial i think for a lot 983 00:35:00,630 --> 00:34:58,880 of people to learn about fisheries and 984 00:35:02,230 --> 00:35:00,640 about what we have done to marine 985 00:35:04,710 --> 00:35:02,240 organisms around the world in our 986 00:35:06,390 --> 00:35:04,720 fishing and in some cases overfishing 987 00:35:08,069 --> 00:35:06,400 and cod is one of the best examples i 988 00:35:10,790 --> 00:35:08,079 think of that occurring in the ocean 989 00:35:12,870 --> 00:35:10,800 there are certainly many others as well 990 00:35:15,349 --> 00:35:12,880 so thank you very much for that i am 991 00:35:17,109 --> 00:35:15,359 going to open it up now to our audience 992 00:35:19,670 --> 00:35:17,119 so for those watching on the nasa 993 00:35:21,750 --> 00:35:19,680 astrobiology facebook or on the nasa 994 00:35:24,069 --> 00:35:21,760 astrobiology youtube channel feel free 995 00:35:25,990 --> 00:35:24,079 to ask your questions in the chat 996 00:35:29,030 --> 00:35:26,000 we will try to load them into our queue 997 00:35:31,030 --> 00:35:29,040 here for us to discuss with dr reed 998 00:35:33,589 --> 00:35:31,040 the first question i'd like to ask comes 999 00:35:36,069 --> 00:35:33,599 from a longtime viewer of our show who 1000 00:35:38,470 --> 00:35:36,079 is very intrigued by the ocean worlds of 1001 00:35:40,550 --> 00:35:38,480 our solar system specifically places 1002 00:35:42,630 --> 00:35:40,560 like europa and enceladus 1003 00:35:44,230 --> 00:35:42,640 this is tom caruso 1004 00:35:45,349 --> 00:35:44,240 tom would like to know if you can 1005 00:35:47,430 --> 00:35:45,359 compare 1006 00:35:50,390 --> 00:35:47,440 um hydrothermal vents at the bottom of 1007 00:35:53,109 --> 00:35:50,400 earth's oceans to possible ones at in 1008 00:35:55,990 --> 00:35:53,119 these low gravity moons uh on enceladus 1009 00:35:58,230 --> 00:35:56,000 and europa um what kinds of differences 1010 00:35:59,990 --> 00:35:58,240 do you think we should expect in a place 1011 00:36:02,870 --> 00:36:00,000 like europa or enceladus versus the 1012 00:36:07,190 --> 00:36:02,880 earth's hydrothermal vent systems 1013 00:36:10,829 --> 00:36:07,200 um that's a good question um i guess the 1014 00:36:14,630 --> 00:36:13,670 what's what's the core doing 1015 00:36:16,069 --> 00:36:14,640 um 1016 00:36:19,990 --> 00:36:16,079 on these moons 1017 00:36:21,670 --> 00:36:20,000 is it uh convecting is it stable um 1018 00:36:23,349 --> 00:36:21,680 and so on and so forth and that's going 1019 00:36:25,030 --> 00:36:23,359 to have an effect as to how the heat 1020 00:36:28,230 --> 00:36:25,040 gets distributed 1021 00:36:30,790 --> 00:36:28,240 and as long as you can convect 1022 00:36:33,829 --> 00:36:30,800 in a core like or in the mantle here on 1023 00:36:36,390 --> 00:36:33,839 earth where you get to move heat around 1024 00:36:38,390 --> 00:36:36,400 um then you can have the aspect or the 1025 00:36:41,910 --> 00:36:38,400 potential for having higher temperature 1026 00:36:45,109 --> 00:36:41,920 fluids um much more so than 1027 00:36:46,870 --> 00:36:45,119 um if it's a you know nice solid feature 1028 00:36:48,630 --> 00:36:46,880 where you um 1029 00:36:50,870 --> 00:36:48,640 can't really penetrate 1030 00:36:52,950 --> 00:36:50,880 uh faults are also very important how 1031 00:36:53,750 --> 00:36:52,960 how faulted is the system 1032 00:36:54,870 --> 00:36:53,760 so 1033 00:36:57,349 --> 00:36:54,880 um 1034 00:36:59,990 --> 00:36:57,359 yeah it'll be interesting to see how 1035 00:37:03,670 --> 00:37:00,000 how once we get um more information from 1036 00:37:06,230 --> 00:37:03,680 flybys and orbiting uh satellites 1037 00:37:08,950 --> 00:37:06,240 um what we learn more about the inner 1038 00:37:10,470 --> 00:37:08,960 workings of those moons 1039 00:37:11,990 --> 00:37:10,480 yeah and that's a good point so we 1040 00:37:14,230 --> 00:37:12,000 should remind the audience we have an 1041 00:37:16,950 --> 00:37:14,240 upcoming mission nasa's europa clipper 1042 00:37:19,190 --> 00:37:16,960 mission is going to go to europa it's 1043 00:37:20,230 --> 00:37:19,200 going to orbit around jupiter and europa 1044 00:37:22,390 --> 00:37:20,240 together 1045 00:37:23,510 --> 00:37:22,400 it's not going to be diving down into 1046 00:37:25,109 --> 00:37:23,520 the ocean 1047 00:37:27,349 --> 00:37:25,119 um but it will teach us a lot more about 1048 00:37:30,069 --> 00:37:27,359 europa's surface we'll use instruments 1049 00:37:31,910 --> 00:37:30,079 to better detect the extent of europa's 1050 00:37:34,630 --> 00:37:31,920 ocean to study the chemistry of the 1051 00:37:36,230 --> 00:37:34,640 surface of europa if there are plumes 1052 00:37:38,230 --> 00:37:36,240 there's been some hypotheses and some 1053 00:37:40,150 --> 00:37:38,240 data from telescopes to suggest there 1054 00:37:41,030 --> 00:37:40,160 could be plumes of fluid at europa as 1055 00:37:42,790 --> 00:37:41,040 well 1056 00:37:44,870 --> 00:37:42,800 then clipper has an instrument that will 1057 00:37:45,990 --> 00:37:44,880 allow them to sample materials from 1058 00:37:47,589 --> 00:37:46,000 plumes 1059 00:37:49,190 --> 00:37:47,599 that same instrument will study the dust 1060 00:37:51,030 --> 00:37:49,200 and the material environment around 1061 00:37:53,190 --> 00:37:51,040 europa as well so 1062 00:37:55,910 --> 00:37:53,200 there are upcoming missions currently 1063 00:37:58,870 --> 00:37:55,920 nothing is planned uh nothing is paid 1064 00:38:01,030 --> 00:37:58,880 for is going to enceladus but uh there 1065 00:38:02,710 --> 00:38:01,040 are some cool ideas in the works from 1066 00:38:04,390 --> 00:38:02,720 various researchers of icy worlds for 1067 00:38:06,230 --> 00:38:04,400 getting out and studying 1068 00:38:08,710 --> 00:38:06,240 enceladus again as well and some of the 1069 00:38:10,470 --> 00:38:08,720 other ocean worlds um 1070 00:38:11,910 --> 00:38:10,480 i would like to share a question now our 1071 00:38:14,069 --> 00:38:11,920 senior production assistant sarah 1072 00:38:15,589 --> 00:38:14,079 treadwell i asked her own question uh 1073 00:38:16,870 --> 00:38:15,599 sarah wants to know since you've 1074 00:38:19,670 --> 00:38:16,880 traveled and you've been to all these 1075 00:38:21,990 --> 00:38:19,680 various locations um on the ocean uh 1076 00:38:24,710 --> 00:38:22,000 what is your favorite location in which 1077 00:38:26,150 --> 00:38:24,720 you've gotten to do research thus far 1078 00:38:29,349 --> 00:38:26,160 oh 1079 00:38:34,470 --> 00:38:29,359 uh that's a good one um 1080 00:38:37,990 --> 00:38:36,069 uh 1081 00:38:39,510 --> 00:38:38,000 you're pretty much everything looks the 1082 00:38:41,270 --> 00:38:39,520 same 1083 00:38:43,750 --> 00:38:41,280 there's a lot of blue 1084 00:38:46,390 --> 00:38:43,760 blue water blue sky and so on and so 1085 00:38:47,670 --> 00:38:46,400 forth but um once you get underneath 1086 00:38:50,630 --> 00:38:47,680 the blue 1087 00:38:54,550 --> 00:38:50,640 water in the sky and on the sea floor 1088 00:38:56,870 --> 00:38:54,560 um i i think uh the mud volcanoes um 1089 00:38:58,710 --> 00:38:56,880 where you know 1090 00:39:01,109 --> 00:38:58,720 they're coming up um i think that's the 1091 00:39:03,510 --> 00:39:01,119 most fascinating because 1092 00:39:06,230 --> 00:39:03,520 i i don't understand it as much 1093 00:39:06,950 --> 00:39:06,240 or as well as some of the other places 1094 00:39:14,390 --> 00:39:06,960 and 1095 00:39:15,670 --> 00:39:14,400 samples 1096 00:39:17,349 --> 00:39:15,680 uh from 1097 00:39:18,790 --> 00:39:17,359 from that environment 1098 00:39:20,870 --> 00:39:18,800 relative to let's say high temperature 1099 00:39:22,870 --> 00:39:20,880 hydrothermal systems or or even ridge 1100 00:39:23,670 --> 00:39:22,880 flank hydrothermal systems 1101 00:39:26,310 --> 00:39:23,680 so 1102 00:39:29,030 --> 00:39:26,320 i would i think that be uh i put that 1103 00:39:31,030 --> 00:39:29,040 place as number one that's awesome yeah 1104 00:39:33,030 --> 00:39:31,040 it's so cool when you do a research it 1105 00:39:34,310 --> 00:39:33,040 gives you a chance uh if you're into you 1106 00:39:36,950 --> 00:39:34,320 know traveling in the world and learning 1107 00:39:38,390 --> 00:39:36,960 about unique systems um you can do that 1108 00:39:39,589 --> 00:39:38,400 as a researcher 1109 00:39:42,550 --> 00:39:39,599 and that kind of leads to my next 1110 00:39:43,589 --> 00:39:42,560 question then uh user mr praximus on 1111 00:39:47,030 --> 00:39:43,599 youtube 1112 00:39:49,109 --> 00:39:47,040 uh asks this uh as a master's degree 1113 00:39:52,150 --> 00:39:49,119 marine biologist who wants to continue 1114 00:39:54,310 --> 00:39:52,160 into a phd in deep marine biology uh 1115 00:39:57,109 --> 00:39:54,320 specifically with usage of rovs and 1116 00:39:58,790 --> 00:39:57,119 other technologies uh user mr proximus 1117 00:40:01,990 --> 00:39:58,800 wants to know 1118 00:40:03,990 --> 00:40:02,000 what subjects might they want follow 1119 00:40:05,910 --> 00:40:04,000 in order to better develop a good phd 1120 00:40:07,910 --> 00:40:05,920 project that allows them to go out and 1121 00:40:10,470 --> 00:40:07,920 do deep marine biology with rovs and 1122 00:40:12,790 --> 00:40:10,480 such 1123 00:40:14,710 --> 00:40:12,800 i'm i'm a firm believer 1124 00:40:15,670 --> 00:40:14,720 that uh you need to know the fundamental 1125 00:40:18,630 --> 00:40:15,680 science 1126 00:40:20,150 --> 00:40:18,640 uh before you get in more in the broader 1127 00:40:23,829 --> 00:40:20,160 application so 1128 00:40:25,430 --> 00:40:23,839 so for me um chemistry and geology is 1129 00:40:27,510 --> 00:40:25,440 important 1130 00:40:30,550 --> 00:40:27,520 if you're into fluid flow you know 1131 00:40:32,390 --> 00:40:30,560 physics is important biology 1132 00:40:34,470 --> 00:40:32,400 making sure you understand the basics of 1133 00:40:36,470 --> 00:40:34,480 biology and ecology 1134 00:40:38,550 --> 00:40:36,480 and how 1135 00:40:40,630 --> 00:40:38,560 how life works fundamentally 1136 00:40:42,069 --> 00:40:40,640 um the ocean is just another aspect of 1137 00:40:43,750 --> 00:40:42,079 it um 1138 00:40:47,190 --> 00:40:43,760 it's just an application of the 1139 00:40:50,630 --> 00:40:47,200 fundamental uh processes that you 1140 00:40:53,270 --> 00:40:50,640 you learn about so i would say a solid 1141 00:40:55,190 --> 00:40:53,280 foundation in basic science 1142 00:40:57,030 --> 00:40:55,200 is a is a great start 1143 00:40:59,589 --> 00:40:57,040 and then if you're um 1144 00:41:01,270 --> 00:40:59,599 you know then to go to grad school in 1145 00:41:02,309 --> 00:41:01,280 one of these fields 1146 00:41:03,190 --> 00:41:02,319 um 1147 00:41:04,710 --> 00:41:03,200 you know 1148 00:41:06,550 --> 00:41:04,720 uh there's 1149 00:41:08,550 --> 00:41:06,560 quite a few oceanographic institutions 1150 00:41:11,270 --> 00:41:08,560 or ocean institutions that have 1151 00:41:13,109 --> 00:41:11,280 oceanographic uh programs 1152 00:41:14,950 --> 00:41:13,119 and find someone who's been doing 1153 00:41:15,990 --> 00:41:14,960 deep-sea research and goes out to sea a 1154 00:41:18,470 --> 00:41:16,000 lot 1155 00:41:21,589 --> 00:41:18,480 um because they typically keep going out 1156 00:41:23,670 --> 00:41:21,599 to sea um and there's a lot of people 1157 00:41:25,430 --> 00:41:23,680 doing a lot of fun stuff 1158 00:41:27,109 --> 00:41:25,440 um 1159 00:41:29,190 --> 00:41:27,119 especially even now in the trenches 1160 00:41:31,510 --> 00:41:29,200 there's a bunch of work that's really 1161 00:41:32,950 --> 00:41:31,520 deep sea 1162 00:41:34,069 --> 00:41:32,960 it's very cool yeah it makes i don't 1163 00:41:35,589 --> 00:41:34,079 ever hear about that i want to go down 1164 00:41:36,630 --> 00:41:35,599 to deepsea as well go study some of 1165 00:41:39,190 --> 00:41:36,640 those things 1166 00:41:43,109 --> 00:41:39,200 um we have a similar question from user 1167 00:41:44,790 --> 00:41:43,119 niall gakewood uh gaekwad on youtube uh 1168 00:41:47,349 --> 00:41:44,800 niall says that they're currently doing 1169 00:41:49,270 --> 00:41:47,359 a masters in biochemistry and is 1170 00:41:51,910 --> 00:41:49,280 immensely interested in astrobiology 1171 00:41:53,589 --> 00:41:51,920 intending to do a phd um their question 1172 00:41:56,309 --> 00:41:53,599 is what steps would you suggest to take 1173 00:41:57,910 --> 00:41:56,319 to enter this field um but i think 1174 00:41:59,910 --> 00:41:57,920 you've kind of already answered that to 1175 00:42:02,470 --> 00:41:59,920 a degree so i'd like to add to what 1176 00:42:05,030 --> 00:42:02,480 niall is asking and actually ask you 1177 00:42:07,030 --> 00:42:05,040 about the importance of mentorship 1178 00:42:08,870 --> 00:42:07,040 in your own career and for some of these 1179 00:42:10,710 --> 00:42:08,880 younger students doing master's degrees 1180 00:42:12,950 --> 00:42:10,720 or undergraduate degrees who want to 1181 00:42:14,710 --> 00:42:12,960 earn phds 1182 00:42:17,270 --> 00:42:14,720 what's your vision of the importance of 1183 00:42:18,390 --> 00:42:17,280 finding a mentor to enter this field as 1184 00:42:20,710 --> 00:42:18,400 well 1185 00:42:21,829 --> 00:42:20,720 i i would say a mentor is very important 1186 00:42:24,550 --> 00:42:21,839 um 1187 00:42:27,270 --> 00:42:24,560 i've seen people that have 1188 00:42:28,870 --> 00:42:27,280 if you have a mentor it makes everything 1189 00:42:30,790 --> 00:42:28,880 everything work 1190 00:42:33,190 --> 00:42:30,800 because they will know what you need to 1191 00:42:34,309 --> 00:42:33,200 know and what you need to do and how to 1192 00:42:36,950 --> 00:42:34,319 do it and 1193 00:42:38,150 --> 00:42:36,960 and can antagonize you or you know 1194 00:42:40,550 --> 00:42:38,160 promote you 1195 00:42:42,150 --> 00:42:40,560 um in a direction 1196 00:42:47,829 --> 00:42:42,160 um 1197 00:42:49,109 --> 00:42:47,839 and so having a mentor is uh is very 1198 00:42:51,829 --> 00:42:49,119 important 1199 00:42:54,390 --> 00:42:51,839 um i think over the years people have 1200 00:42:56,309 --> 00:42:54,400 become more aware of the 1201 00:42:59,190 --> 00:42:56,319 need for strong mentorship 1202 00:43:02,069 --> 00:42:59,200 um in in university settings so 1203 00:43:03,990 --> 00:43:02,079 uh that's always good um and it doesn't 1204 00:43:07,190 --> 00:43:04,000 necessarily have to be 1205 00:43:09,030 --> 00:43:07,200 um you you know your advisor it could be 1206 00:43:11,670 --> 00:43:09,040 a post-doc or a senior 1207 00:43:15,510 --> 00:43:11,680 uh graduate student uh can come in and 1208 00:43:17,030 --> 00:43:15,520 act as a mentor just as well as uh as 1209 00:43:20,069 --> 00:43:17,040 the pi 1210 00:43:22,150 --> 00:43:20,079 so um or or even uh someone who's been 1211 00:43:23,430 --> 00:43:22,160 in the lab is a tech in a technical 1212 00:43:25,510 --> 00:43:23,440 capacity 1213 00:43:28,069 --> 00:43:25,520 you know it's just uh 1214 00:43:29,349 --> 00:43:28,079 putting it in so um mentorship is very 1215 00:43:30,790 --> 00:43:29,359 important 1216 00:43:33,510 --> 00:43:30,800 and um 1217 00:43:35,910 --> 00:43:33,520 it can really help out your career 1218 00:43:37,829 --> 00:43:35,920 or or and also guide you in different 1219 00:43:39,430 --> 00:43:37,839 directions um 1220 00:43:40,950 --> 00:43:39,440 you know or make you aware of different 1221 00:43:42,390 --> 00:43:40,960 directions sometimes we get a little 1222 00:43:44,150 --> 00:43:42,400 tunnel vision 1223 00:43:45,750 --> 00:43:44,160 as to uh 1224 00:43:47,829 --> 00:43:45,760 we think we want to go in this direction 1225 00:43:49,109 --> 00:43:47,839 and we're unaware of other potential 1226 00:43:51,190 --> 00:43:49,119 directions 1227 00:43:53,109 --> 00:43:51,200 and so having 1228 00:43:55,109 --> 00:43:53,119 those possibilities put out to us too is 1229 00:43:57,270 --> 00:43:55,119 is always good 1230 00:43:58,710 --> 00:43:57,280 that's a great point i i was inspired 1231 00:44:00,710 --> 00:43:58,720 when i was younger i was earning degrees 1232 00:44:03,030 --> 00:44:00,720 in biology and chemistry and i was 1233 00:44:05,270 --> 00:44:03,040 inspired by peter diamandis to go on and 1234 00:44:07,750 --> 00:44:05,280 study astrophysics and then to earn my 1235 00:44:09,589 --> 00:44:07,760 phd in geology to to allow myself to 1236 00:44:10,950 --> 00:44:09,599 transition through several different 1237 00:44:12,630 --> 00:44:10,960 fields of study 1238 00:44:13,589 --> 00:44:12,640 which i found very helpful in the long 1239 00:44:15,109 --> 00:44:13,599 run and 1240 00:44:17,430 --> 00:44:15,119 in mentorship i've been very lucky 1241 00:44:18,790 --> 00:44:17,440 myself to mentor various students and be 1242 00:44:20,950 --> 00:44:18,800 involved in their lives and watch their 1243 00:44:22,630 --> 00:44:20,960 careers grow one person i've watched 1244 00:44:25,270 --> 00:44:22,640 grow a lot is our production assistant 1245 00:44:27,829 --> 00:44:25,280 america mahanti uh anna roop also has 1246 00:44:29,990 --> 00:44:27,839 asked a question for you um and i i kind 1247 00:44:31,510 --> 00:44:30,000 of like his wording here uh he says what 1248 00:44:33,910 --> 00:44:31,520 are the major challenges uh 1249 00:44:35,270 --> 00:44:33,920 technological or physical in exploring 1250 00:44:37,829 --> 00:44:35,280 the sea floor 1251 00:44:40,390 --> 00:44:37,839 but he adds to that uh is there any 1252 00:44:42,069 --> 00:44:40,400 challenge in exploring the ocean 1253 00:44:45,109 --> 00:44:42,079 that might be similar to how we have a 1254 00:44:46,630 --> 00:44:45,119 cosmic speed limit for space exploration 1255 00:44:49,030 --> 00:44:46,640 so like at the fundamental level is 1256 00:44:52,230 --> 00:44:49,040 there something really challenging about 1257 00:44:56,260 --> 00:44:54,870 oh well um 1258 00:44:57,510 --> 00:44:56,270 yeah i think it's uh 1259 00:44:59,910 --> 00:44:57,520 [Music] 1260 00:45:02,829 --> 00:44:59,920 time on the seafloor um 1261 00:45:04,390 --> 00:45:02,839 and how fast the vehicles can move 1262 00:45:06,230 --> 00:45:04,400 um 1263 00:45:08,470 --> 00:45:06,240 and uh the nice thing about well 1264 00:45:11,510 --> 00:45:08,480 submarines you're sort of limited to 1265 00:45:14,230 --> 00:45:11,520 about five hours a day on the seafloor 1266 00:45:15,990 --> 00:45:14,240 uh with an rov uh you can have it down 1267 00:45:16,870 --> 00:45:16,000 for 24 hours a day 1268 00:45:18,950 --> 00:45:16,880 um 1269 00:45:21,430 --> 00:45:18,960 and we've had in our we've had jason 1270 00:45:23,510 --> 00:45:21,440 which is an rov run out of woods hole 1271 00:45:26,150 --> 00:45:23,520 uh massachusetts um 1272 00:45:27,670 --> 00:45:26,160 uh that that one has been down we've had 1273 00:45:28,870 --> 00:45:27,680 it down for a week 1274 00:45:30,710 --> 00:45:28,880 and 1275 00:45:32,470 --> 00:45:30,720 um as 1276 00:45:34,230 --> 00:45:32,480 one of the questions earlier what we do 1277 00:45:35,349 --> 00:45:34,240 is we send samplers down with an 1278 00:45:39,670 --> 00:45:35,359 elevator 1279 00:45:41,750 --> 00:45:39,680 send samples down it sinks to the sea 1280 00:45:43,270 --> 00:45:41,760 floor the rov goes over takes the 1281 00:45:45,990 --> 00:45:43,280 samples off 1282 00:45:47,109 --> 00:45:46,000 and then um you go collect your samples 1283 00:45:49,750 --> 00:45:47,119 put your 1284 00:45:51,510 --> 00:45:49,760 your samples back on the elevator comes 1285 00:45:53,750 --> 00:45:51,520 up to the surface and you take them off 1286 00:45:55,270 --> 00:45:53,760 the ship and analyze them and recycle 1287 00:45:56,390 --> 00:45:55,280 that um 1288 00:45:58,550 --> 00:45:56,400 and 1289 00:46:01,829 --> 00:45:58,560 even with that process even having the 1290 00:46:03,349 --> 00:46:01,839 extra hours you can't really cover a lot 1291 00:46:05,910 --> 00:46:03,359 of ground 1292 00:46:07,430 --> 00:46:05,920 and it's a miniscule amount of seafloor 1293 00:46:10,309 --> 00:46:07,440 relative to 1294 00:46:11,829 --> 00:46:10,319 the sea floor on the earth 1295 00:46:14,630 --> 00:46:11,839 we um 1296 00:46:16,390 --> 00:46:14,640 where the octopuses were on the seafloor 1297 00:46:17,910 --> 00:46:16,400 we spent you know 1298 00:46:20,150 --> 00:46:17,920 i think three weeks 1299 00:46:21,109 --> 00:46:20,160 diving all the time on this one feature 1300 00:46:23,510 --> 00:46:21,119 that's 1301 00:46:25,109 --> 00:46:23,520 about a kilometer long and half a 1302 00:46:26,630 --> 00:46:25,119 kilometer wide 1303 00:46:28,390 --> 00:46:26,640 and 1304 00:46:31,190 --> 00:46:28,400 you know it took that amount of time 1305 00:46:32,630 --> 00:46:31,200 just to do that small portion of the 1306 00:46:33,750 --> 00:46:32,640 seafloor so 1307 00:46:36,390 --> 00:46:33,760 um 1308 00:46:40,309 --> 00:46:36,400 if there was some way we could automate 1309 00:46:41,990 --> 00:46:40,319 um make things a little faster um and 1310 00:46:45,270 --> 00:46:42,000 you know see the sea floor that'd be 1311 00:46:47,670 --> 00:46:45,280 great one option or one way uh the sort 1312 00:46:50,309 --> 00:46:47,680 of the community is moving is 1313 00:46:51,589 --> 00:46:50,319 uh through autonomous vehicles 1314 00:46:54,069 --> 00:46:51,599 and um 1315 00:46:56,230 --> 00:46:54,079 the upside of that is you can cover a 1316 00:46:57,430 --> 00:46:56,240 lot more ground with a bunch of smaller 1317 00:47:00,550 --> 00:46:57,440 vehicles 1318 00:47:03,030 --> 00:47:00,560 and the downside is again the cost and 1319 00:47:04,390 --> 00:47:03,040 the engineering capabilities and so on 1320 00:47:05,750 --> 00:47:04,400 and so forth to actually make that 1321 00:47:06,710 --> 00:47:05,760 happen 1322 00:47:08,710 --> 00:47:06,720 so 1323 00:47:10,390 --> 00:47:08,720 i i guess it's a matter of how much 1324 00:47:11,670 --> 00:47:10,400 space you can 1325 00:47:12,550 --> 00:47:11,680 actually 1326 00:47:14,470 --> 00:47:12,560 see 1327 00:47:17,349 --> 00:47:14,480 currently you know 1328 00:47:18,950 --> 00:47:17,359 see on the sea floor right now 1329 00:47:21,030 --> 00:47:18,960 and as you mentioned it's so little that 1330 00:47:22,150 --> 00:47:21,040 we've explored um and that kind of 1331 00:47:23,829 --> 00:47:22,160 intrigues me it makes me think you know 1332 00:47:26,309 --> 00:47:23,839 much as like right now we have folks at 1333 00:47:29,510 --> 00:47:26,319 nasa who are sitting in command rooms at 1334 00:47:31,910 --> 00:47:29,520 places like jpl and sending commands you 1335 00:47:33,510 --> 00:47:31,920 know via radio wave to mars and then 1336 00:47:35,190 --> 00:47:33,520 they're they're telling our rovers what 1337 00:47:37,750 --> 00:47:35,200 to do on the surface of mars from so far 1338 00:47:39,990 --> 00:47:37,760 away but but even in space exploration 1339 00:47:42,069 --> 00:47:40,000 you know with rovers and orbiters we are 1340 00:47:42,790 --> 00:47:42,079 trying to automate more and more so that 1341 00:47:46,950 --> 00:47:42,800 the 1342 00:47:49,270 --> 00:47:46,960 more data and know how to collect more 1343 00:47:51,109 --> 00:47:49,280 data on its own and know how to avoid 1344 00:47:52,470 --> 00:47:51,119 hazards and things like that and so that 1345 00:47:54,790 --> 00:47:52,480 makes me wonder in the future could we 1346 00:47:56,230 --> 00:47:54,800 see like a submersible being guided by 1347 00:47:58,230 --> 00:47:56,240 people sitting in a command room at 1348 00:47:59,349 --> 00:47:58,240 their local university and the rover's 1349 00:48:00,870 --> 00:47:59,359 out in the middle of the ocean just 1350 00:48:02,390 --> 00:48:00,880 doing its own thing 1351 00:48:04,230 --> 00:48:02,400 um it's kind of cool to think about i'm 1352 00:48:06,470 --> 00:48:04,240 glad you mentioned the elevator system 1353 00:48:09,109 --> 00:48:06,480 for bringing samples up and down that's 1354 00:48:10,870 --> 00:48:09,119 not unlike how nasa perseverance the 1355 00:48:12,309 --> 00:48:10,880 river right now is collecting and 1356 00:48:14,150 --> 00:48:12,319 caching samples that we're going to 1357 00:48:15,030 --> 00:48:14,160 eventually go pick up and bring back to 1358 00:48:17,589 --> 00:48:15,040 earth 1359 00:48:19,910 --> 00:48:17,599 um to study and it's a really important 1360 00:48:21,910 --> 00:48:19,920 question you know as researchers it's so 1361 00:48:24,069 --> 00:48:21,920 helpful when we have the sample in our 1362 00:48:25,910 --> 00:48:24,079 hand to work with we can take it to 1363 00:48:27,910 --> 00:48:25,920 specialized instruments we can share it 1364 00:48:30,150 --> 00:48:27,920 amongst different research groups 1365 00:48:31,349 --> 00:48:30,160 and i myself i've been very blessed 1366 00:48:33,430 --> 00:48:31,359 previously 1367 00:48:35,750 --> 00:48:33,440 through a nasa an exit biology grant to 1368 00:48:38,150 --> 00:48:35,760 travel to the arctic and collect samples 1369 00:48:41,030 --> 00:48:38,160 add a field site a planetary analog and 1370 00:48:43,349 --> 00:48:41,040 bring them back to america to study 1371 00:48:45,190 --> 00:48:43,359 and so our next question comes from user 1372 00:48:46,710 --> 00:48:45,200 erin avapidar 1373 00:48:48,710 --> 00:48:46,720 it's an important question that many of 1374 00:48:50,230 --> 00:48:48,720 us who've retrieved samples and have 1375 00:48:52,470 --> 00:48:50,240 brought them back to the laboratory have 1376 00:48:54,390 --> 00:48:52,480 had to ask ourselves uh to make sure 1377 00:48:56,549 --> 00:48:54,400 that we're being true to the science uh 1378 00:48:59,109 --> 00:48:56,559 erinova wants to know 1379 00:49:01,270 --> 00:48:59,119 how is the condition of the fluid 1380 00:49:03,349 --> 00:49:01,280 samples and i'll add any samples that 1381 00:49:05,430 --> 00:49:03,359 you collect uh things like ph 1382 00:49:07,030 --> 00:49:05,440 temperature mineralogy 1383 00:49:09,030 --> 00:49:07,040 how are these conditions when they're 1384 00:49:11,270 --> 00:49:09,040 collected near the sea floor 1385 00:49:12,549 --> 00:49:11,280 maintained during the journey from the 1386 00:49:14,790 --> 00:49:12,559 ocean 1387 00:49:17,510 --> 00:49:14,800 back to the ship and then and then from 1388 00:49:18,950 --> 00:49:17,520 the ship back to the laboratory um how 1389 00:49:20,870 --> 00:49:18,960 do we make sure that we are actually 1390 00:49:22,710 --> 00:49:20,880 studying the right thing from the 1391 00:49:25,270 --> 00:49:22,720 seafloor 1392 00:49:28,549 --> 00:49:25,280 well that's a good question and and the 1393 00:49:31,589 --> 00:49:28,559 reality is is uh we do our best 1394 00:49:32,710 --> 00:49:31,599 um in the case of fluids and what i do 1395 00:49:34,230 --> 00:49:32,720 um 1396 00:49:36,870 --> 00:49:34,240 it's 1397 00:49:37,670 --> 00:49:36,880 typically reactions don't occur very 1398 00:49:39,430 --> 00:49:37,680 much 1399 00:49:41,829 --> 00:49:39,440 or not at all 1400 00:49:44,630 --> 00:49:41,839 um and there's ways of preserving adding 1401 00:49:46,870 --> 00:49:44,640 a preservative whether it be in my case 1402 00:49:49,349 --> 00:49:46,880 adding some acid to the sampler on the 1403 00:49:51,510 --> 00:49:49,359 sea floor to keep whatever solutes are 1404 00:49:53,910 --> 00:49:51,520 there in solution 1405 00:49:56,710 --> 00:49:53,920 for microbiology that's another question 1406 00:49:58,150 --> 00:49:56,720 there's a whole new focus of 1407 00:50:00,309 --> 00:49:58,160 trying to collect the samples and 1408 00:50:02,630 --> 00:50:00,319 pressurized uh systems 1409 00:50:05,190 --> 00:50:02,640 because pressure can influence 1410 00:50:06,549 --> 00:50:05,200 um the microbial communities and in 1411 00:50:07,510 --> 00:50:06,559 their activity 1412 00:50:13,349 --> 00:50:07,520 so 1413 00:50:15,430 --> 00:50:13,359 sediment uh we do know if it's a 1414 00:50:17,510 --> 00:50:15,440 carbonate rich sediment it will exchange 1415 00:50:20,230 --> 00:50:17,520 with the pore waters on the way up 1416 00:50:22,069 --> 00:50:20,240 um and it's in very you know you're 1417 00:50:24,150 --> 00:50:22,079 taking it from a two degree environment 1418 00:50:26,790 --> 00:50:24,160 and bring it to the ship at 20 degrees 1419 00:50:28,950 --> 00:50:26,800 uh things happen um 1420 00:50:30,069 --> 00:50:28,960 gases you know your 1421 00:50:32,069 --> 00:50:30,079 uh 1422 00:50:33,910 --> 00:50:32,079 300 atmospheres at the bottom of the sea 1423 00:50:34,790 --> 00:50:33,920 floor and one atmosphere at the surface 1424 00:50:37,030 --> 00:50:34,800 and 1425 00:50:39,109 --> 00:50:37,040 if you have dissolved gases that are in 1426 00:50:41,349 --> 00:50:39,119 excessive sort of standard temperature 1427 00:50:43,910 --> 00:50:41,359 and pressure uh 1428 00:50:47,910 --> 00:50:43,920 uh capabilities then yes they will 1429 00:50:51,030 --> 00:50:47,920 um come out of solution uh so so we have 1430 00:50:55,430 --> 00:50:51,040 to be aware of our environment 1431 00:50:58,150 --> 00:50:55,440 and uh try to do our best um 1432 00:51:00,230 --> 00:50:58,160 knowing what potential caveats 1433 00:51:01,990 --> 00:51:00,240 exist 1434 00:51:03,589 --> 00:51:02,000 yeah i mean i agree the same thing for 1435 00:51:06,230 --> 00:51:03,599 arctic samples and the same thing for 1436 00:51:08,309 --> 00:51:06,240 martian samples um you know we we have 1437 00:51:11,589 --> 00:51:08,319 to think through it and do our best 1438 00:51:13,109 --> 00:51:11,599 honestly uh our next question comes from 1439 00:51:14,069 --> 00:51:13,119 another production assistant for the 1440 00:51:15,829 --> 00:51:14,079 show 1441 00:51:17,670 --> 00:51:15,839 miriam nassim 1442 00:51:19,670 --> 00:51:17,680 and miriam wants to know if you could 1443 00:51:22,549 --> 00:51:19,680 talk a bit more about the opportunities 1444 00:51:23,990 --> 00:51:22,559 that are available for graduate and phd 1445 00:51:25,990 --> 00:51:24,000 students to 1446 00:51:27,829 --> 00:51:26,000 as students conduct research on 1447 00:51:30,069 --> 00:51:27,839 scientific vessels or in ocean 1448 00:51:31,589 --> 00:51:30,079 expeditions 1449 00:51:41,030 --> 00:51:31,599 um 1450 00:51:42,790 --> 00:51:41,040 there's a thing called you knows uh i 1451 00:51:45,670 --> 00:51:42,800 can't think of the what the acronym 1452 00:51:47,589 --> 00:51:45,680 stands for but it's basically university 1453 00:51:49,670 --> 00:51:47,599 something for oceanography 1454 00:51:52,309 --> 00:51:49,680 i don't know but basically it's a 1455 00:51:55,030 --> 00:51:52,319 consortium of ships that are run by 1456 00:51:56,069 --> 00:51:55,040 uh different universities and those 1457 00:51:58,470 --> 00:51:56,079 ships are 1458 00:52:02,309 --> 00:51:58,480 to conduct oceanographic research 1459 00:52:03,430 --> 00:52:02,319 um oftentimes those ships will have uh 1460 00:52:05,109 --> 00:52:03,440 pis 1461 00:52:07,670 --> 00:52:05,119 from different universities 1462 00:52:08,710 --> 00:52:07,680 um using those ships and they will need 1463 00:52:11,270 --> 00:52:08,720 people 1464 00:52:14,390 --> 00:52:11,280 to go out and conduct research 1465 00:52:16,630 --> 00:52:14,400 there's also other programs like uh 1466 00:52:17,589 --> 00:52:16,640 woods hole oceanographic runs a program 1467 00:52:20,069 --> 00:52:17,599 for 1468 00:52:22,230 --> 00:52:20,079 getting people involved with alvin which 1469 00:52:24,549 --> 00:52:22,240 is the submersible 1470 00:52:26,710 --> 00:52:24,559 and i think they've also had one maybe 1471 00:52:30,829 --> 00:52:26,720 for jason in the past i'm not sure which 1472 00:52:33,670 --> 00:52:30,839 is the rov and the idea there is getting 1473 00:52:36,390 --> 00:52:33,680 um great later stage graduate students 1474 00:52:38,870 --> 00:52:36,400 and post docs out on the vessels to see 1475 00:52:40,390 --> 00:52:38,880 how those vessels work and operate and 1476 00:52:42,549 --> 00:52:40,400 what they can provide 1477 00:52:45,190 --> 00:52:42,559 um how are they different than 1478 00:52:46,470 --> 00:52:45,200 uh just coring and uh 1479 00:52:48,870 --> 00:52:46,480 or collecting 1480 00:52:51,670 --> 00:52:48,880 uh water using hydrocaster or something 1481 00:52:54,309 --> 00:52:51,680 along those lines so uh there are 1482 00:52:56,630 --> 00:52:54,319 distinct programs um 1483 00:52:58,470 --> 00:52:56,640 i don't know i i can't really other than 1484 00:53:00,549 --> 00:52:58,480 the woods hole one i can't point you 1485 00:53:01,990 --> 00:53:00,559 directly to one 1486 00:53:03,589 --> 00:53:02,000 um 1487 00:53:06,950 --> 00:53:03,599 and uh there are 1488 00:53:08,549 --> 00:53:06,960 the unals page will certainly have pis 1489 00:53:10,470 --> 00:53:08,559 and their university 1490 00:53:13,190 --> 00:53:10,480 uh principal investigators and the 1491 00:53:14,549 --> 00:53:13,200 universities of who's um taking the 1492 00:53:16,230 --> 00:53:14,559 ships out 1493 00:53:17,109 --> 00:53:16,240 um and then you could contact those 1494 00:53:19,109 --> 00:53:17,119 people 1495 00:53:21,030 --> 00:53:19,119 to see what um what they're doing and if 1496 00:53:23,190 --> 00:53:21,040 they need help or people and so on and 1497 00:53:25,349 --> 00:53:23,200 so forth 1498 00:53:26,870 --> 00:53:25,359 thank you so much for sharing that and i 1499 00:53:28,950 --> 00:53:26,880 just realized we've actually come to the 1500 00:53:31,750 --> 00:53:28,960 top of the hour and the end of our show 1501 00:53:33,349 --> 00:53:31,760 unfortunately uh dr wheat it has been a 1502 00:53:35,349 --> 00:53:33,359 humongous pleasure having you on the 1503 00:53:37,190 --> 00:53:35,359 show thank you so much for joining us 1504 00:53:38,790 --> 00:53:37,200 uh thank you for having me 1505 00:53:41,589 --> 00:53:38,800 yeah and i look forward to hearing more 1506 00:53:44,069 --> 00:53:41,599 about your research in mud volcanoes and 1507 00:53:45,750 --> 00:53:44,079 other places on the sea floor and i hope 1508 00:53:47,990 --> 00:53:45,760 that you get a humongous grant to help 1509 00:53:49,589 --> 00:53:48,000 fund the research that you want to do 1510 00:53:51,589 --> 00:53:49,599 and to hear far more about some of these 1511 00:53:53,910 --> 00:53:51,599 incredible things we're learning as we 1512 00:53:56,630 --> 00:53:53,920 continue to explore that rather 1513 00:53:57,910 --> 00:53:56,640 unexplored region of our own world in 1514 00:53:59,270 --> 00:53:57,920 the deep sea 1515 00:54:01,430 --> 00:53:59,280 for those watching if you'd like to 1516 00:54:03,430 --> 00:54:01,440 learn a bit more about dr reed's work 1517 00:54:08,230 --> 00:54:03,440 you can check out his labs website at 1518 00:54:12,470 --> 00:54:11,030 sub seafloor hyphen lab 1519 00:54:13,750 --> 00:54:12,480 dr wheat is there anything else you'd 1520 00:54:15,349 --> 00:54:13,760 like to share with our audience before 1521 00:54:17,670 --> 00:54:15,359 we sign off 1522 00:54:19,190 --> 00:54:17,680 um i would just say if you're interested 1523 00:54:20,230 --> 00:54:19,200 in working in the deep sea and the 1524 00:54:22,829 --> 00:54:20,240 seafloor 1525 00:54:27,109 --> 00:54:22,839 the main thing is perseverance 1526 00:54:28,950 --> 00:54:27,119 um perseverance counts a lot 1527 00:54:30,790 --> 00:54:28,960 i love it yeah perseverance counts for 1528 00:54:32,470 --> 00:54:30,800 everything um so for those who want to 1529 00:54:34,870 --> 00:54:32,480 stay in the loop on upcoming episodes of 1530 00:54:36,710 --> 00:54:34,880 the show as well as more info about 1531 00:54:38,230 --> 00:54:36,720 opportunities and events from nasa 1532 00:54:40,150 --> 00:54:38,240 astrobiology 1533 00:54:41,990 --> 00:54:40,160 mike toyon our director producer is 1534 00:54:44,150 --> 00:54:42,000 putting a link on the screen right now 1535 00:54:47,510 --> 00:54:44,160 so you can sign up for the official 1536 00:54:49,270 --> 00:54:47,520 mailing list from nasa astrobiology uh i 1537 00:54:50,950 --> 00:54:49,280 hope that all of you will stay tuned 1538 00:54:54,870 --> 00:54:50,960 just for a little bit after the credits 1539 00:54:57,750 --> 00:54:54,880 roll here for a sneak peek at episode 2 1540 00:54:59,670 --> 00:54:57,760 of astrobiology in the field 1541 00:55:02,390 --> 00:54:59,680 this time astrobiology in the field 1542 00:55:04,870 --> 00:55:02,400 takes you to greenland to study not only 1543 00:55:06,630 --> 00:55:04,880 some of the oldest rocks on the earth 1544 00:55:08,870 --> 00:55:06,640 but some questions about what 1545 00:55:10,230 --> 00:55:08,880 potentially could be some of the oldest 1546 00:55:12,789 --> 00:55:10,240 signs of life 1547 00:55:14,950 --> 00:55:12,799 on the earth so thank you dr wheat for 1548 00:55:17,190 --> 00:55:14,960 joining us thank you to our audience for 1549 00:55:22,220 --> 00:55:17,200 joining us uh and until next time 1550 00:55:22,230 --> 00:55:37,589 [Music]