1 00:02:51,440 --> 00:02:35,800 [Music] 2 00:02:55,830 --> 00:02:54,300 hello everyone I'm gay ye Hill and 3 00:02:59,250 --> 00:02:55,840 welcome to NASA's Jet Propulsion 4 00:03:01,680 --> 00:02:59,260 Laboratory after two decades in space 5 00:03:04,500 --> 00:03:01,690 the Cassini spacecraft has reached the 6 00:03:06,330 --> 00:03:04,510 end of its journey at Saturn earlier 7 00:03:08,730 --> 00:03:06,340 this morning the spacecraft made its 8 00:03:11,640 --> 00:03:08,740 final approach to the giant planet and 9 00:03:14,970 --> 00:03:11,650 plunged into Saturn's upper atmosphere 10 00:03:17,040 --> 00:03:14,980 ending this extraordinary mission but 11 00:03:19,980 --> 00:03:17,050 due to the time it takes for radio 12 00:03:22,470 --> 00:03:19,990 signals to travel almost a billion miles 13 00:03:24,720 --> 00:03:22,480 between the ringed planet and Earth the 14 00:03:27,630 --> 00:03:24,730 team won't have confirmation that the 15 00:03:30,900 --> 00:03:27,640 mission has ended until they see Cassini 16 00:03:33,510 --> 00:03:30,910 signal drop away the Deep Space Network 17 00:03:36,690 --> 00:03:33,520 is monitoring Cassini signal as you can 18 00:03:39,770 --> 00:03:36,700 see on this DSN now display it's being 19 00:03:45,330 --> 00:03:39,780 tracked by a 70 meter wide antenna 20 00:03:47,310 --> 00:03:45,340 antenna 43 in Canberra Australia here's 21 00:03:49,860 --> 00:03:47,320 a live picture of the control room on 22 00:03:52,259 --> 00:03:49,870 the other side of the world the DSN team 23 00:03:54,650 --> 00:03:52,269 in Australia is keeping a watchful eye 24 00:03:58,590 --> 00:03:54,660 on Cassini's final transmission 25 00:04:01,290 --> 00:03:58,600 meanwhile it is 4 a.m. here in 26 00:04:04,560 --> 00:04:01,300 California the Sun is not up yet and 27 00:04:07,590 --> 00:04:04,570 more than 1,500 Cassini scientists 28 00:04:10,229 --> 00:04:07,600 engineers alumni friends and family have 29 00:04:12,930 --> 00:04:10,239 gathered for this moment the flight team 30 00:04:15,570 --> 00:04:12,940 is in the Cassini mission control area 31 00:04:18,659 --> 00:04:15,580 others have gathered in von Karman 32 00:04:22,650 --> 00:04:18,669 auditorium here at JPL and still more 33 00:04:24,990 --> 00:04:22,660 are at Caltech in Pasadena folks wanted 34 00:04:28,380 --> 00:04:25,000 to be together to share this final 35 00:04:31,980 --> 00:04:28,390 moment this is a vigil but also a 36 00:04:35,270 --> 00:04:31,990 celebration of a remarkable mission this 37 00:04:39,559 --> 00:04:35,280 is the last hour of the last chapter of 38 00:04:47,039 --> 00:04:47,029 a lone Explorer 39 00:04:57,180 --> 00:04:49,309 on a mission to reveal the grandeur of 40 00:05:05,750 --> 00:05:00,480 after 20 years in space NASA's Cassini 41 00:05:08,790 --> 00:05:05,760 spacecraft is running out of fuel and so 42 00:05:10,830 --> 00:05:08,800 to protect the moons of Saturn that 43 00:05:14,010 --> 00:05:10,840 could have conditions suitable for life 44 00:05:15,030 --> 00:05:14,020 a spectacular end has been planned for 45 00:05:17,290 --> 00:05:15,040 this long-lived 46 00:05:36,049 --> 00:05:17,300 traveler from Earth 47 00:05:41,279 --> 00:05:39,600 in 2004 following a seven-year journey 48 00:05:49,559 --> 00:05:41,289 through the solar system 49 00:05:52,889 --> 00:05:49,569 Cassini arrived at Saturn the spacecraft 50 00:05:55,919 --> 00:05:52,899 carried a passenger the European Huygens 51 00:05:58,019 --> 00:05:55,929 probe the first human-made object to 52 00:06:04,709 --> 00:05:58,029 land on a world in the distant outer 53 00:06:07,049 --> 00:06:04,719 solar system for over a decade Cassini 54 00:06:10,379 --> 00:06:07,059 has shared the wonders of Saturn and its 55 00:06:13,139 --> 00:06:10,389 family of icy moons taking us to 56 00:06:16,859 --> 00:06:13,149 astounding worlds where methane rivers 57 00:06:20,129 --> 00:06:16,869 run to a methane see where Jets of ice 58 00:06:23,279 --> 00:06:20,139 and gas are blasting material into space 59 00:06:27,709 --> 00:06:23,289 from a liquid water ocean that might 60 00:06:31,769 --> 00:06:27,719 Harbor the ingredients for life and 61 00:06:37,490 --> 00:06:31,779 Saturn a giant world ruled by raging 62 00:06:50,560 --> 00:06:41,840 now Cassini has with one last daring 63 00:06:59,780 --> 00:06:54,140 Cassini's grand finale is a brand new 64 00:07:02,780 --> 00:06:59,790 adventure as it repeatedly Braves this 65 00:07:04,879 --> 00:07:02,790 unexplored region Cassini seeks new 66 00:07:07,900 --> 00:07:04,889 insights about the origins of the reigns 67 00:07:12,140 --> 00:07:07,910 and the nature of the planets interior 68 00:07:17,720 --> 00:07:12,150 closer to Saturn than ever before 69 00:07:21,110 --> 00:07:17,730 [Music] 70 00:07:24,980 --> 00:07:21,120 on the final orbit Cassini will plunge 71 00:07:27,890 --> 00:07:24,990 into Saturn fighting to keep its antenna 72 00:07:30,790 --> 00:07:27,900 pointed at earth as a transmits its 73 00:07:37,940 --> 00:07:34,500 in the sky is a Saturn 74 00:07:44,120 --> 00:07:41,810 as Cassini becomes part of the planet 75 00:07:52,870 --> 00:07:44,130 itself 76 00:07:52,880 --> 00:08:06,510 [Music] 77 00:08:12,040 --> 00:08:09,610 okay let's do the numbers the cassini 78 00:08:16,170 --> 00:08:12,050 numbers the mission has traveled nearly 79 00:08:20,440 --> 00:08:16,180 five billion miles since lunch executed 80 00:08:23,340 --> 00:08:20,450 2.5 million commands taken four hundred 81 00:08:26,350 --> 00:08:23,350 and fifty three thousand plus images 82 00:08:29,680 --> 00:08:26,360 discovered six moons published nearly 83 00:08:32,649 --> 00:08:29,690 four thousand science papers and it's 84 00:08:35,860 --> 00:08:32,659 not done Cassini is sending home data 85 00:08:38,230 --> 00:08:35,870 right now right to the end let's take a 86 00:08:40,330 --> 00:08:38,240 look now and talk to Cassini program 87 00:08:43,270 --> 00:08:40,340 enter Earl Mays about this after a 88 00:08:47,470 --> 00:08:43,280 lineup like that you have to be 89 00:08:48,910 --> 00:08:47,480 impressed we are very proud of what 90 00:08:51,400 --> 00:08:48,920 we've been able to accomplish over the 91 00:08:53,740 --> 00:08:51,410 last 13 years at Saturday awesome so a 92 00:08:57,430 --> 00:08:53,750 lot of people are asking then why must 93 00:08:59,020 --> 00:08:57,440 we end this mission this way really if 94 00:09:00,280 --> 00:08:59,030 you think about it a little bit you'll 95 00:09:03,700 --> 00:09:00,290 find out we don't have it didn't have 96 00:09:05,620 --> 00:09:03,710 any choice Cassini must be disposed of 97 00:09:07,180 --> 00:09:05,630 properly at some point there are 98 00:09:08,440 --> 00:09:07,190 international treaties that require that 99 00:09:10,120 --> 00:09:08,450 we can't just leave a derelict 100 00:09:13,540 --> 00:09:10,130 spacecraft in orbit around a planet like 101 00:09:15,100 --> 00:09:13,550 Saturn which has prebiotic moons so 102 00:09:17,140 --> 00:09:15,110 we've got to do something about it we 103 00:09:21,100 --> 00:09:17,150 could have since Cassini away from 104 00:09:23,440 --> 00:09:21,110 Saturn but Saturn was so compelling so 105 00:09:25,990 --> 00:09:23,450 exciting and the mission that we finally 106 00:09:28,870 --> 00:09:26,000 came up with is so rich scientifically 107 00:09:31,990 --> 00:09:28,880 that we just couldn't we had to finish 108 00:09:34,300 --> 00:09:32,000 up at Saturn not someplace else so the 109 00:09:35,950 --> 00:09:34,310 mission really started about seven years 110 00:09:38,110 --> 00:09:35,960 ago we've been on this path to actually 111 00:09:40,690 --> 00:09:38,120 end up right where we are right now in 112 00:09:42,730 --> 00:09:40,700 less than an hour so let's talk about 113 00:09:46,030 --> 00:09:42,740 what's about to happen and kind of walk 114 00:09:48,670 --> 00:09:46,040 viewers through what to expect but let's 115 00:09:51,940 --> 00:09:48,680 start with Monday and the kiss goodbye 116 00:09:55,510 --> 00:09:51,950 okay can you first graphic let's see 117 00:09:57,910 --> 00:09:55,520 what we got here so this is the the last 118 00:09:59,560 --> 00:09:57,920 22 orbits of Saturn and every one of 119 00:10:03,220 --> 00:09:59,570 them is going between the Rings and 120 00:10:06,100 --> 00:10:03,230 Saturn absolutely unexplored territory 121 00:10:08,079 --> 00:10:06,110 fantastic science every time and what's 122 00:10:10,009 --> 00:10:08,089 been also happening is that that out of 123 00:10:12,019 --> 00:10:10,019 there further away is Titan and 124 00:10:14,150 --> 00:10:12,029 right now and then Titan comes by and 125 00:10:17,119 --> 00:10:14,160 you're gonna see it come by for one last 126 00:10:20,119 --> 00:10:17,129 final kiss goodbye that was it it was 127 00:10:22,100 --> 00:10:20,129 very quick you have to go Blake what 128 00:10:24,319 --> 00:10:22,110 happened on Monday was that Titan came 129 00:10:26,720 --> 00:10:24,329 by and gave Cassini one last little 130 00:10:29,210 --> 00:10:26,730 nudge took away a few tens of meters per 131 00:10:31,639 --> 00:10:29,220 second slowed us down just enough so 132 00:10:33,319 --> 00:10:31,649 that our entry into Saturn in just a few 133 00:10:34,929 --> 00:10:33,329 minutes now he's absolutely inevitable 134 00:10:37,960 --> 00:10:34,939 so 135 00:10:40,189 --> 00:10:37,970 Cassini's fate is just filled sealed 136 00:10:41,749 --> 00:10:40,199 absolutely done there was wasn't much we 137 00:10:43,519 --> 00:10:41,759 could have done about it before because 138 00:10:45,410 --> 00:10:43,529 this thing had been so wired in but 139 00:10:47,929 --> 00:10:45,420 after that Titan fly by there was 140 00:10:50,269 --> 00:10:47,939 absolutely nothing we can do so step us 141 00:10:52,910 --> 00:10:50,279 through what has happened over this last 142 00:10:55,100 --> 00:10:52,920 week then getting ready for this moment 143 00:10:57,169 --> 00:10:55,110 okay well because Cassini is still a 144 00:10:58,699 --> 00:10:57,179 science machine really most of what 145 00:11:00,379 --> 00:10:58,709 we've been doing is still gathering more 146 00:11:02,929 --> 00:11:00,389 science and so if you look at this 147 00:11:03,739 --> 00:11:02,939 graphic up here we saw there's the Titan 148 00:11:05,960 --> 00:11:03,749 that just goodbye 149 00:11:08,960 --> 00:11:05,970 on September 11th and then we turn right 150 00:11:10,309 --> 00:11:08,970 back around after flying by Titan 151 00:11:11,929 --> 00:11:10,319 getting a lot of Titan dated we turned 152 00:11:13,429 --> 00:11:11,939 around played all that data back it's on 153 00:11:15,439 --> 00:11:13,439 the monitors all need some of our Jedi 154 00:11:17,509 --> 00:11:15,449 displays you can see those played back 155 00:11:19,220 --> 00:11:17,519 all the data from Titan got good views 156 00:11:21,410 --> 00:11:19,230 of the north of the lakes and the clouds 157 00:11:23,900 --> 00:11:21,420 again turn in because he me turn back 158 00:11:25,910 --> 00:11:23,910 around again for its final set of 159 00:11:28,100 --> 00:11:25,920 science observations and we actually did 160 00:11:30,259 --> 00:11:28,110 a little bit of science and a little bit 161 00:11:31,850 --> 00:11:30,269 of just nostalgia we took a lot of 162 00:11:34,429 --> 00:11:31,860 pictures of him sell this our last 163 00:11:37,189 --> 00:11:34,439 picture of Titan our last picture of the 164 00:11:39,319 --> 00:11:37,199 the rings and planet and we will want 165 00:11:41,359 --> 00:11:39,329 took one more look at the propellers and 166 00:11:42,919 --> 00:11:41,369 Peggy that a little moon we discovered 167 00:11:45,230 --> 00:11:42,929 out in the a ring so there's a little 168 00:11:47,299 --> 00:11:45,240 bit of science a little bit of just kind 169 00:11:49,699 --> 00:11:47,309 of you know last moment memento photos 170 00:11:52,220 --> 00:11:49,709 and those all got played back beginning 171 00:11:53,929 --> 00:11:52,230 yesterday afternoon about 2:45 Cassini 172 00:11:55,879 --> 00:11:53,939 turn back for final calls to earth 173 00:11:58,189 --> 00:11:55,889 played all those data back there also 174 00:12:01,189 --> 00:11:58,199 available in our real-time display about 175 00:12:02,139 --> 00:12:01,199 1 o'clock this morning all that data was 176 00:12:04,850 --> 00:12:02,149 down on the ground 177 00:12:06,470 --> 00:12:04,860 Cassini then rigged yourself up for if 178 00:12:13,039 --> 00:12:06,480 we go back to that timeline just for a 179 00:12:15,409 --> 00:12:13,049 moment so September 15th 137 down there 180 00:12:17,749 --> 00:12:15,419 that last plot we actually configured 181 00:12:19,699 --> 00:12:17,759 ourselves into a real-time Saturn probe 182 00:12:21,650 --> 00:12:19,709 everything that comes into the 183 00:12:23,330 --> 00:12:21,660 spacecraft goes right back out so 184 00:12:24,620 --> 00:12:23,340 there's no delay or a little delay 185 00:12:26,480 --> 00:12:24,630 we could make so that we actually can 186 00:12:28,520 --> 00:12:26,490 become an atmospheric sampling mission 187 00:12:31,700 --> 00:12:28,530 as we go into the planet and then of 188 00:12:34,370 --> 00:12:31,710 course at 4:55 a.m. that's give or take 189 00:12:36,260 --> 00:12:34,380 oh there are a few seconds on that we'll 190 00:12:38,510 --> 00:12:36,270 be entering into Saturn's atmosphere and 191 00:12:40,220 --> 00:12:38,520 let's advance to the next display this 192 00:12:41,780 --> 00:12:40,230 is what's going to be happening within 193 00:12:43,700 --> 00:12:41,790 the last hour 194 00:12:46,520 --> 00:12:43,710 that's exactly right we came in over the 195 00:12:48,800 --> 00:12:46,530 North Pole just a little bit east from 196 00:12:50,510 --> 00:12:48,810 that perspective actually it looks West 197 00:12:52,520 --> 00:12:50,520 here but a little bit over the North 198 00:12:54,170 --> 00:12:52,530 Pole just before four o'clock this 199 00:12:56,900 --> 00:12:54,180 morning we were 60 degrees north and as 200 00:12:58,940 --> 00:12:56,910 you can see that descent is very rapid 201 00:13:01,700 --> 00:12:58,950 in 20 minutes from now or so we'll be at 202 00:13:04,250 --> 00:13:01,710 50 degrees north then a 12 minutes later 203 00:13:06,440 --> 00:13:04,260 40 and we'll be slowly not slowly very 204 00:13:09,770 --> 00:13:06,450 rapidly increasing the 10 degree north 205 00:13:11,990 --> 00:13:09,780 latitude impact point is just about 206 00:13:14,300 --> 00:13:12,000 where we're gonna finish up and it's 207 00:13:16,610 --> 00:13:14,310 going to happen about 5 of 5 this 208 00:13:19,640 --> 00:13:16,620 morning local time and the last 90 209 00:13:20,780 --> 00:13:19,650 seconds the last 90 seconds this is 210 00:13:22,100 --> 00:13:20,790 really where it's all going to be 211 00:13:26,030 --> 00:13:22,110 happening because he's not going to even 212 00:13:27,620 --> 00:13:26,040 really notice Saturn until the last 90 213 00:13:29,390 --> 00:13:27,630 seconds because it's in freefall around 214 00:13:31,430 --> 00:13:29,400 the gravitational body it's just it's 215 00:13:34,610 --> 00:13:31,440 doing its thing and play everything but 216 00:13:36,290 --> 00:13:34,620 between 70 and 60 seconds out from final 217 00:13:37,490 --> 00:13:36,300 impact it will start to notice the 218 00:13:39,080 --> 00:13:37,500 atmosphere and you can see in this 219 00:13:41,720 --> 00:13:39,090 graphic the very tenuous atmosphere 220 00:13:43,790 --> 00:13:41,730 started to experience no because he's 221 00:13:45,710 --> 00:13:43,800 been fighting the atmosphere before as a 222 00:13:49,190 --> 00:13:45,720 matter of fact for the last 5 revs we've 223 00:13:51,110 --> 00:13:49,200 been doing that and it's done very well 224 00:13:53,210 --> 00:13:51,120 but this time because we're going to go 225 00:13:54,890 --> 00:13:53,220 in so deep there's not a chance that it 226 00:13:56,540 --> 00:13:54,900 can fight to hold on to the atmosphere 227 00:13:58,490 --> 00:13:56,550 that atmosphere where we've been 228 00:14:01,460 --> 00:13:58,500 fighting it so far it's about the same 229 00:14:03,470 --> 00:14:01,470 density as the atmosphere that the 230 00:14:06,050 --> 00:14:03,480 International Space Station experiences 231 00:14:09,770 --> 00:14:06,060 here on earth very thin but we're going 232 00:14:15,860 --> 00:14:09,780 very very fast we have the animation 233 00:14:18,260 --> 00:14:15,870 from the video earlier ok painful to 234 00:14:20,150 --> 00:14:18,270 watch well it's actually what you're 235 00:14:21,830 --> 00:14:20,160 watching this value of spacecraft you 236 00:14:23,990 --> 00:14:21,840 can see the thrusters coming out of 237 00:14:25,940 --> 00:14:24,000 active back and as it starts to 238 00:14:28,160 --> 00:14:25,950 encounter the atmosphere those are small 239 00:14:30,020 --> 00:14:28,170 thrusters day.they they just aren't 240 00:14:32,510 --> 00:14:30,030 built to fight the kind of torques and 241 00:14:33,620 --> 00:14:32,520 by the way that's the antenna the chill 242 00:14:35,480 --> 00:14:33,630 trying to point the earth there's 243 00:14:36,540 --> 00:14:35,490 thrusters just aren't built to handle 244 00:14:38,250 --> 00:14:36,550 the kind of 245 00:14:40,889 --> 00:14:38,260 of Japanese rhetoric and Dragons is 246 00:14:43,230 --> 00:14:40,899 conceding experience but for about a 247 00:14:44,790 --> 00:14:43,240 minute Cassini will hang on we'll be 248 00:14:46,829 --> 00:14:44,800 sampling the atmosphere will be sitting 249 00:14:49,170 --> 00:14:46,839 the data back as quickly as we can and 250 00:14:51,720 --> 00:14:49,180 then finally of course it's gonna lose 251 00:14:52,980 --> 00:14:51,730 the battle and well within the next 252 00:14:56,340 --> 00:14:52,990 minute we'll be completely and totally 253 00:14:58,290 --> 00:14:56,350 vaporized becoming part of the planet it 254 00:15:00,180 --> 00:14:58,300 went to explore just as planned as 255 00:15:03,540 --> 00:15:00,190 planned just exactly the way we've 256 00:15:06,150 --> 00:15:03,550 always had to do and so for it for the 257 00:15:09,540 --> 00:15:06,160 team it is bittersweet I mean it is sad 258 00:15:11,690 --> 00:15:09,550 but there is tremendous energy here 259 00:15:14,310 --> 00:15:11,700 there is I think we're excited because 260 00:15:16,319 --> 00:15:14,320 this is exactly the way we always 261 00:15:18,449 --> 00:15:16,329 planned this it's sad that we're losing 262 00:15:21,360 --> 00:15:18,459 you know incredible discovery machine 263 00:15:24,150 --> 00:15:21,370 that's a loss but was always in the 264 00:15:26,040 --> 00:15:24,160 plans and now it's working exactly the 265 00:15:27,990 --> 00:15:26,050 way we set it out the images we've seen 266 00:15:29,819 --> 00:15:28,000 for the last few reps and that's science 267 00:15:31,800 --> 00:15:29,829 we've had for this entire proximal orbit 268 00:15:34,019 --> 00:15:31,810 has just been phenomenal so the real 269 00:15:38,160 --> 00:15:34,029 sense here is just alright we got it 270 00:15:40,079 --> 00:15:38,170 we have what a wonderful tour thank you 271 00:15:42,000 --> 00:15:40,089 well thanks so much for joining us I'll 272 00:15:43,170 --> 00:15:42,010 let you back in the room I know you want 273 00:15:47,310 --> 00:15:43,180 to be back in here 274 00:15:50,130 --> 00:15:47,320 all right thanks Earl meanwhile DSN 43 275 00:15:52,680 --> 00:15:50,140 in Australia is the antenna locked on 276 00:15:55,710 --> 00:15:52,690 Cassini signal and let's check the 277 00:16:02,850 --> 00:15:55,720 update display the expected loss of 278 00:16:09,300 --> 00:16:02,860 signal is 455 a.m. and that is about 41 279 00:16:15,639 --> 00:16:12,490 we've managed to inspire a younger 280 00:16:18,100 --> 00:16:15,649 generation of scientists and they will 281 00:16:20,800 --> 00:16:18,110 continue after this is over and after 282 00:16:23,860 --> 00:16:20,810 the original investigators are gone to 283 00:16:31,960 --> 00:16:23,870 to march on for their own challenges for 284 00:16:34,180 --> 00:16:31,970 future spacecraft exploration let's look 285 00:16:36,670 --> 00:16:34,190 back to what inspired the mission and 286 00:16:39,070 --> 00:16:36,680 the day Cassini arrived at Saturn the 287 00:16:41,380 --> 00:16:39,080 cassini-huygens mission was a joint 288 00:16:44,500 --> 00:16:41,390 effort of NASA the European Space Agency 289 00:16:46,690 --> 00:16:44,510 and the Italian space agency it was 290 00:16:50,400 --> 00:16:46,700 conceived after the Voyager flybys of 291 00:17:01,130 --> 00:16:50,410 Saturn and scientists all over the world 292 00:17:09,949 --> 00:17:04,309 hello this is Arthur Clarke joining you 293 00:17:11,419 --> 00:17:09,959 from my tour in Colombo Sri Lanka thanks 294 00:17:14,120 --> 00:17:11,429 to the World Wide Web 295 00:17:17,299 --> 00:17:14,130 I've been following the purpose of 296 00:17:21,020 --> 00:17:17,309 cassini-huygens from the time it was 297 00:17:23,510 --> 00:17:21,030 launched several years ago as you know I 298 00:17:27,020 --> 00:17:23,520 had more than a passing interest in 299 00:17:27,770 --> 00:17:27,030 Saturn so I'm going to keep my fingers 300 00:17:31,720 --> 00:17:27,780 crossed 301 00:17:35,750 --> 00:17:31,730 with what Cassini discovers who knows 302 00:18:17,570 --> 00:17:35,760 one day our survival on earth they 303 00:18:17,580 --> 00:18:21,740 [Applause] 304 00:18:31,140 --> 00:18:24,779 okay we have burned complete here for 305 00:18:33,600 --> 00:18:31,150 the SLI or insertion burn it for 306 00:18:36,930 --> 00:18:33,610 Saturn's strong gravity pulling us in 307 00:18:39,870 --> 00:18:36,940 SOI burn attitude or pointing direction 308 00:18:48,630 --> 00:18:39,880 and we'll hope to acquire a signal 309 00:18:51,600 --> 00:18:48,640 before that turn actually completes 30th 310 00:18:54,210 --> 00:18:51,610 2004 was the voice of Cassini propulsion 311 00:18:56,220 --> 00:18:54,220 engineer Todd barber Todd served as the 312 00:18:59,130 --> 00:18:56,230 team's commentator and Todd is back 313 00:19:01,409 --> 00:18:59,140 today once again serving as our team 314 00:19:04,440 --> 00:19:01,419 commentator in the same Mission Control 315 00:19:06,000 --> 00:19:04,450 Room for a much different event how does 316 00:19:08,669 --> 00:19:06,010 it feel taught to be here 317 00:19:11,490 --> 00:19:08,679 I gave well it's great to be back it's 318 00:19:13,590 --> 00:19:11,500 kind of cruel to age 13 years in two 319 00:19:16,740 --> 00:19:13,600 seconds and have to watch that but what 320 00:19:19,440 --> 00:19:16,750 a demonstration of the longevity of this 321 00:19:22,799 --> 00:19:19,450 mission as you and I sat there in 2004 322 00:19:24,810 --> 00:19:22,809 we never dreamt we'd be here in 2017 323 00:19:27,029 --> 00:19:24,820 still talking about Cassini and 324 00:19:29,940 --> 00:19:27,039 collecting science data so I'm just 325 00:19:31,830 --> 00:19:29,950 thrilled to be here even even having 326 00:19:34,350 --> 00:19:31,840 aged some years since that's life 327 00:19:36,899 --> 00:19:34,360 Oh Todd very quickly we're a couple of 328 00:19:39,120 --> 00:19:36,909 minutes behind here explain to us why 329 00:19:43,049 --> 00:19:39,130 the team has gathered here even though 330 00:19:47,370 --> 00:19:43,059 you told me that the spacecraft met its 331 00:19:50,159 --> 00:19:47,380 fate probably about 3:30 about 3:30 332 00:19:53,220 --> 00:19:50,169 Pacific time out at Saturn but yet the 333 00:19:55,500 --> 00:19:53,230 team is waiting here now and holding 334 00:19:57,330 --> 00:19:55,510 vigil why is that well it's that pesky 335 00:20:00,029 --> 00:19:57,340 Albert Einstein in his speed of light 336 00:20:02,070 --> 00:20:00,039 speed limit at 186,000 miles per second 337 00:20:04,590 --> 00:20:02,080 or 300,000 kilometers per second so 338 00:20:06,779 --> 00:20:04,600 Saturn is about an hour and 23 minutes 339 00:20:09,000 --> 00:20:06,789 away from us right now one-way light 340 00:20:11,159 --> 00:20:09,010 time I'm a big sports nut I tape a lot 341 00:20:12,360 --> 00:20:11,169 of games and DVR em and the game is 342 00:20:14,220 --> 00:20:12,370 still exciting if you don't know the 343 00:20:16,409 --> 00:20:14,230 result you haven't seen it and no one's 344 00:20:18,810 --> 00:20:16,419 seen the cassini last bits of science 345 00:20:20,520 --> 00:20:18,820 come back from Saturn yet it's just 346 00:20:22,560 --> 00:20:20,530 about to cross the orbit of Jupiter 347 00:20:25,380 --> 00:20:22,570 there's our graphic 348 00:20:28,770 --> 00:20:25,390 so and of course Jupiter's a little 349 00:20:30,330 --> 00:20:28,780 different position so any denizens of 350 00:20:31,650 --> 00:20:30,340 the solar system at Jupiter or Mars 351 00:20:34,350 --> 00:20:31,660 they'll know 352 00:20:36,210 --> 00:20:34,360 Cassini's fate and last bit of data 353 00:20:38,280 --> 00:20:36,220 before we will on earth so we're holding 354 00:20:42,299 --> 00:20:38,290 vigil here we also have that this 355 00:20:45,390 --> 00:20:42,309 display kind of like a gauges in your 356 00:20:47,610 --> 00:20:45,400 car this is the speed notice it's 63,000 357 00:20:50,070 --> 00:20:47,620 miles per hour and climbing as we 358 00:20:52,200 --> 00:20:50,080 descend into Saturn's gravity well and 359 00:20:54,180 --> 00:20:52,210 on the right side is the distance from 360 00:20:57,270 --> 00:20:54,190 the cloud tops and that's just shrinking 361 00:21:00,000 --> 00:20:57,280 it's gonna head down over the next 37 362 00:21:01,350 --> 00:21:00,010 minutes until we reach those cloud tops 363 00:21:03,180 --> 00:21:01,360 and say goodbye to our beautiful 364 00:21:05,640 --> 00:21:03,190 spacecraft down at Saturn and Todd 365 00:21:08,940 --> 00:21:05,650 helped us understand how the team will 366 00:21:12,090 --> 00:21:08,950 be monitoring this yes we've got a few 367 00:21:16,080 --> 00:21:12,100 ways there's a display from well here's 368 00:21:18,450 --> 00:21:16,090 our radio signals so this is the carrier 369 00:21:21,419 --> 00:21:18,460 frequency and what I'd like to point out 370 00:21:24,720 --> 00:21:21,429 here the peak in the middle this is like 371 00:21:27,330 --> 00:21:24,730 the loudness or the signal strength and 372 00:21:29,070 --> 00:21:27,340 at the Cassini frequency that it's 373 00:21:31,020 --> 00:21:29,080 talking we have two displays by the way 374 00:21:33,210 --> 00:21:31,030 X band and s band those are just two 375 00:21:34,950 --> 00:21:33,220 different radio frequencies so if you 376 00:21:36,419 --> 00:21:34,960 think in your car radio of tuning to 377 00:21:38,610 --> 00:21:36,429 different frequencies that's like moving 378 00:21:40,620 --> 00:21:38,620 along the x axis there are the 379 00:21:43,530 --> 00:21:40,630 horizontal axis and we're getting a nice 380 00:21:46,799 --> 00:21:43,540 big strong booming signal from Cassini 381 00:21:48,900 --> 00:21:46,809 on both those axes but as we come into 382 00:21:51,510 --> 00:21:48,910 the atmosphere and turn away from Earth 383 00:21:52,140 --> 00:21:51,520 our thrusters can't keep up anymore with 384 00:21:55,350 --> 00:21:52,150 the torques 385 00:21:58,680 --> 00:21:55,360 those will flatline and that's when we 386 00:22:01,470 --> 00:21:58,690 say goodbye to Cassini however the key 387 00:22:04,620 --> 00:22:01,480 is to keep the data coming down to earth 388 00:22:07,500 --> 00:22:04,630 and get those precious last few bits of 389 00:22:09,990 --> 00:22:07,510 science data from Saturn our first sniff 390 00:22:11,880 --> 00:22:10,000 of the upper Saturn of the atmosphere 391 00:22:14,669 --> 00:22:11,890 and boy we're excited for that all right 392 00:22:15,270 --> 00:22:14,679 well thanks Todd we will check back with 393 00:22:17,880 --> 00:22:15,280 you later 394 00:22:21,480 --> 00:22:17,890 and one of the signals Todd showed you 395 00:22:23,480 --> 00:22:21,490 is part of a computer visualization tool 396 00:22:26,370 --> 00:22:23,490 we call eyes on the solar system this 397 00:22:28,470 --> 00:22:26,380 JPL computer simulation software is 398 00:22:30,450 --> 00:22:28,480 based on real data from missions and 399 00:22:32,820 --> 00:22:30,460 it's something you can download onto 400 00:22:34,530 --> 00:22:32,830 your own computer and use to follow 401 00:22:38,610 --> 00:22:34,540 along this morning just 402 00:22:43,740 --> 00:22:38,620 goto eyes nasa.gov download the app and 403 00:22:46,470 --> 00:22:43,750 click on Cassini store here are two 404 00:22:50,130 --> 00:22:46,480 family photos we'd like to share the top 405 00:22:53,250 --> 00:22:50,140 one was taken on June 21st 2017 it's the 406 00:22:55,770 --> 00:22:53,260 Cassini team and alumni and they filled 407 00:22:58,440 --> 00:22:55,780 the staircase on the mall here most of 408 00:23:01,170 --> 00:22:58,450 them are engineers on the bottom photo 409 00:23:03,270 --> 00:23:01,180 was and this one was just taking just a 410 00:23:05,820 --> 00:23:03,280 few days ago it's the science team and 411 00:23:08,180 --> 00:23:05,830 they were at Caltech the team includes 412 00:23:10,710 --> 00:23:08,190 scientists from all over the world over 413 00:23:12,780 --> 00:23:10,720 the years thousands of people have 414 00:23:15,660 --> 00:23:12,790 worked on this mission in fact there are 415 00:23:17,970 --> 00:23:15,670 so many members of the Cassini family we 416 00:23:20,610 --> 00:23:17,980 couldn't fit all of them here at JPL 417 00:23:23,010 --> 00:23:20,620 it's why there's a big crowd at Beckman 418 00:23:25,320 --> 00:23:23,020 auditorium at Caltech in Pasadena and 419 00:23:27,870 --> 00:23:25,330 that is where Cassini science team 420 00:23:31,790 --> 00:23:27,880 member morgan Cable is right now Morgan 421 00:23:39,300 --> 00:23:36,840 hi gay well here at Caltech the you can 422 00:23:41,790 --> 00:23:39,310 hear behind me right this is a historic 423 00:23:44,520 --> 00:23:41,800 moment and I think the mood reflects 424 00:23:46,710 --> 00:23:44,530 that but it's also like a family reunion 425 00:23:50,010 --> 00:23:46,720 so we're here with our other fellow 426 00:23:51,630 --> 00:23:50,020 Cassini family members we're seeing 427 00:23:54,480 --> 00:23:51,640 people we haven't seen in a long time 428 00:23:56,640 --> 00:23:54,490 for some cases and it's just been 429 00:23:59,130 --> 00:23:56,650 wonderful to share these memories to 430 00:24:01,740 --> 00:23:59,140 revel in the excitement this is the 431 00:24:05,520 --> 00:24:01,750 celebration of an amazing mission and an 432 00:24:08,250 --> 00:24:05,530 incredible legacy Morgan you're one of 433 00:24:10,800 --> 00:24:08,260 the scientists here one of the 434 00:24:13,470 --> 00:24:10,810 scientists out there I mean for you 435 00:24:15,900 --> 00:24:13,480 you're probably being very reflective 436 00:24:20,610 --> 00:24:15,910 what was one of the highlights for you 437 00:24:22,860 --> 00:24:20,620 of this mission for me personally the 438 00:24:26,070 --> 00:24:22,870 discoveries at Enceladus have really 439 00:24:27,540 --> 00:24:26,080 revolutionized our view of where we 440 00:24:29,970 --> 00:24:27,550 might find life or at least the 441 00:24:32,700 --> 00:24:29,980 conditions suitable for life in not only 442 00:24:34,440 --> 00:24:32,710 our solar system but the universe we've 443 00:24:37,080 --> 00:24:34,450 learned now that there are places where 444 00:24:38,940 --> 00:24:37,090 liquid water and the other ingredients 445 00:24:41,760 --> 00:24:38,950 for life as we know it to exist 446 00:24:43,800 --> 00:24:41,770 chemistry and energy exists in places 447 00:24:45,780 --> 00:24:43,810 like Enceladus and that's thanks to the 448 00:24:47,910 --> 00:24:45,790 Cassini mission which flew 449 00:24:51,570 --> 00:24:47,920 the plume of Enceladus multiple times 450 00:24:53,490 --> 00:24:51,580 this means that life may not only exist 451 00:24:56,520 --> 00:24:53,500 in the habitable zone around other stars 452 00:24:59,010 --> 00:24:56,530 but now we can start to look for places 453 00:25:01,380 --> 00:24:59,020 like Enceladus or Europa elsewhere in 454 00:25:04,050 --> 00:25:01,390 the universe and extend our search to 455 00:25:06,720 --> 00:25:04,060 try to find that amazing discovery of 456 00:25:08,430 --> 00:25:06,730 life somewhere else all right well we 457 00:25:11,430 --> 00:25:08,440 will be checking back with you Morgan 458 00:25:14,370 --> 00:25:11,440 later on the show thanks for that report 459 00:25:16,350 --> 00:25:14,380 it is about 23 minutes past the hour 460 00:25:19,260 --> 00:25:16,360 you're watching live coverage marking 461 00:25:21,990 --> 00:25:19,270 the final moments of Cassini on NASA TV 462 00:25:23,940 --> 00:25:22,000 the Deep Space Network is awaiting the 463 00:25:27,450 --> 00:25:23,950 loss of signal from the spacecraft from 464 00:25:30,660 --> 00:25:27,460 DSN antenna 43 in Australia and let's go 465 00:25:33,590 --> 00:25:30,670 to Cassini's final hour display at this 466 00:25:36,780 --> 00:25:33,600 point the spacecraft has sent us data 467 00:25:40,590 --> 00:25:36,790 from about the 50 degree north latitude 468 00:25:49,110 --> 00:25:40,600 mark and loss of signal should be coming 469 00:25:55,010 --> 00:25:51,160 [Music] 470 00:26:14,900 --> 00:25:56,820 you 471 00:26:46,480 --> 00:26:22,630 [Music] 472 00:26:51,770 --> 00:26:49,669 beautiful images from Cassini the 473 00:26:53,840 --> 00:26:51,780 cassini-huygens mission made so many 474 00:26:56,029 --> 00:26:53,850 historic discoveries think about it the 475 00:26:58,220 --> 00:26:56,039 Huygens probe sent back details of an 476 00:27:00,770 --> 00:26:58,230 alien world on Titan a world that 477 00:27:03,409 --> 00:27:00,780 appears to be very similar to earth it 478 00:27:05,029 --> 00:27:03,419 found jet spraying water ice and 479 00:27:08,150 --> 00:27:05,039 organics from the South Pole of 480 00:27:11,299 --> 00:27:08,160 Enceladus revealing an interior ocean 481 00:27:13,310 --> 00:27:11,309 where there could be life over and over 482 00:27:15,980 --> 00:27:13,320 again the mission revealed scientific 483 00:27:19,700 --> 00:27:15,990 wonders about Saturn its rings and moons 484 00:27:22,370 --> 00:27:19,710 and it hasn't stopped at least not yet 485 00:27:25,700 --> 00:27:22,380 with me now is Cassini project scientist 486 00:27:28,460 --> 00:27:25,710 Linda Stoker this mission was determined 487 00:27:30,850 --> 00:27:28,470 to send down science right down to the 488 00:27:33,590 --> 00:27:30,860 very hats right gay till the very last 489 00:27:36,460 --> 00:27:33,600 second so we're all told us just a 490 00:27:41,330 --> 00:27:36,470 little while ago that overnight the 491 00:27:43,159 --> 00:27:41,340 spacecraft sent back the last picture 492 00:27:45,560 --> 00:27:43,169 show it's been called can you describe 493 00:27:48,260 --> 00:27:45,570 what those are okay well let's go to the 494 00:27:49,970 --> 00:27:48,270 very first image image a as part of the 495 00:27:52,460 --> 00:27:49,980 last picture show the first thing we did 496 00:27:54,320 --> 00:27:52,470 is we made a color mosaic and these are 497 00:27:56,419 --> 00:27:54,330 just a couple of pictures from that 498 00:27:59,360 --> 00:27:56,429 mosaic we'll stitch those together and 499 00:28:01,640 --> 00:27:59,370 have a beautiful image of Saturn plus 500 00:28:04,760 --> 00:28:01,650 the Rings for the last time we go to 501 00:28:08,060 --> 00:28:04,770 image a see that's a movie of Enceladus 502 00:28:11,210 --> 00:28:08,070 actually setting behind the limb of 503 00:28:13,909 --> 00:28:11,220 Saturn and explain to me how the team 504 00:28:16,460 --> 00:28:13,919 decided to come up with this imagery in 505 00:28:18,380 --> 00:28:16,470 this selection well there's a lot of 506 00:28:20,720 --> 00:28:18,390 science in these images so we wanted to 507 00:28:22,730 --> 00:28:20,730 do science oh there's Enceladus setting 508 00:28:25,610 --> 00:28:22,740 behind the limit of Saturn so we're 509 00:28:28,399 --> 00:28:25,620 saying goodbye to Enceladus and taking a 510 00:28:30,560 --> 00:28:28,409 last look at that particular world and 511 00:28:32,840 --> 00:28:30,570 so we wanted to sort of do a survey look 512 00:28:34,610 --> 00:28:32,850 at each of these key targets collect 513 00:28:36,260 --> 00:28:34,620 picture postcards for our Cassini 514 00:28:38,480 --> 00:28:36,270 scrapbook so these will be the last 515 00:28:41,360 --> 00:28:38,490 pictures that we'll put in our scrapbook 516 00:28:44,210 --> 00:28:41,370 if we look at image D that's a true 517 00:28:47,810 --> 00:28:44,220 color image of Titan and you can see the 518 00:28:50,030 --> 00:28:47,820 lakes up in the North image F shows this 519 00:28:51,840 --> 00:28:50,040 in false color there's a UV filter as 520 00:28:54,060 --> 00:28:51,850 part of image F and the lakes 521 00:28:56,909 --> 00:28:54,070 really pop out and you can also see that 522 00:28:58,860 --> 00:28:56,919 bluish haze at the edge of Titan you 523 00:29:01,380 --> 00:28:58,870 know Titan has this thick nitrogen 524 00:29:04,740 --> 00:29:01,390 atmosphere we also took some pictures of 525 00:29:06,450 --> 00:29:04,750 the Rings gay if we go to image G we're 526 00:29:08,669 --> 00:29:06,460 looking for propellers in this 527 00:29:11,549 --> 00:29:08,679 particular image and you can just see a 528 00:29:14,250 --> 00:29:11,559 hint of it above that dark gap if we go 529 00:29:16,529 --> 00:29:14,260 to image H that's a blow-up and see that 530 00:29:18,180 --> 00:29:16,539 little two arm propeller it's that 531 00:29:20,880 --> 00:29:18,190 little bright feature just above the 532 00:29:22,140 --> 00:29:20,890 dark gap there's a collection of ring 533 00:29:24,539 --> 00:29:22,150 particles that are large enough they're 534 00:29:26,640 --> 00:29:24,549 trying to open their own gap and they 535 00:29:29,430 --> 00:29:26,650 create what looks like an airplane 536 00:29:33,419 --> 00:29:29,440 propeller and they have fun names names 537 00:29:36,060 --> 00:29:33,429 of aviators if we go to image I as part 538 00:29:38,250 --> 00:29:36,070 of the sequence we're looking at the 539 00:29:40,830 --> 00:29:38,260 tiny moon deafness that's the Keeler gap 540 00:29:43,620 --> 00:29:40,840 you can see those crinkly edges along 541 00:29:46,230 --> 00:29:43,630 the gap that's created by Daphna s-- 542 00:29:48,539 --> 00:29:46,240 awake as it goes through that system and 543 00:29:50,279 --> 00:29:48,549 you can see the beautiful density waves 544 00:29:52,860 --> 00:29:50,289 the interaction between the Rings and 545 00:29:55,260 --> 00:29:52,870 the satellites also as those bright 546 00:29:59,279 --> 00:29:55,270 features in our last look at the 547 00:30:01,289 --> 00:29:59,289 propellers and finally image J this is 548 00:30:03,779 --> 00:30:01,299 an image looking at Saturn in a place 549 00:30:07,409 --> 00:30:03,789 where a Cassini will be entering so one 550 00:30:10,049 --> 00:30:07,419 of our last views our very last pictures 551 00:30:12,899 --> 00:30:10,059 of Saturn and you can think of Cassini 552 00:30:15,020 --> 00:30:12,909 as basically running a marathon for 13 553 00:30:18,000 --> 00:30:15,030 years we've been running a marathon of 554 00:30:21,330 --> 00:30:18,010 scientific discovery and were on the 555 00:30:24,810 --> 00:30:21,340 last lap and so we're here today to 556 00:30:28,289 --> 00:30:24,820 cheer as Cassini finishes that race now 557 00:30:30,840 --> 00:30:28,299 many many of these images and what the 558 00:30:33,480 --> 00:30:30,850 spacecraft will be doing right now all 559 00:30:35,130 --> 00:30:33,490 of this is unknown territory the 560 00:30:37,890 --> 00:30:35,140 spacecraft has never been here before 561 00:30:40,140 --> 00:30:37,900 that's right we're flying into Saturn 562 00:30:42,090 --> 00:30:40,150 more deeply than we've ever flown before 563 00:30:44,580 --> 00:30:42,100 we have eight of our scientific 564 00:30:47,279 --> 00:30:44,590 instruments on the key instrument is the 565 00:30:48,840 --> 00:30:47,289 aina neutral mass spectrometer basically 566 00:30:51,210 --> 00:30:48,850 coming in we've oriented the instrument 567 00:30:53,970 --> 00:30:51,220 to sample the atmosphere of Saturn which 568 00:30:56,070 --> 00:30:53,980 it's doing right now deeper and deeper 569 00:30:58,740 --> 00:30:56,080 until on the very final second as 570 00:31:01,260 --> 00:30:58,750 Cassini fights to hold attitude it'll 571 00:31:03,720 --> 00:31:01,270 send back those last very valuable 572 00:31:06,420 --> 00:31:03,730 packets of data and 573 00:31:09,090 --> 00:31:06,430 who knows how many PhD theses might be 574 00:31:12,330 --> 00:31:09,100 in just those final seconds of data 575 00:31:14,880 --> 00:31:12,340 right we will have scientists and 576 00:31:16,920 --> 00:31:14,890 students poring over this data for 577 00:31:19,320 --> 00:31:16,930 decades to come probably right and look 578 00:31:21,900 --> 00:31:19,330 at the hydrogen to helium ratio to help 579 00:31:24,240 --> 00:31:21,910 us understand how Saturn formed how 580 00:31:25,860 --> 00:31:24,250 Saturn's evolving and who knows what 581 00:31:26,400 --> 00:31:25,870 else we'll see as we go into the 582 00:31:29,130 --> 00:31:26,410 atmosphere 583 00:31:29,790 --> 00:31:29,140 what great science means you know still 584 00:31:31,800 --> 00:31:29,800 ahead 585 00:31:34,290 --> 00:31:31,810 all right well Linda thanks for joining 586 00:31:36,780 --> 00:31:34,300 us yes glad to be here you're watching 587 00:31:38,790 --> 00:31:36,790 live coverage of Cassini's final hour 588 00:31:41,730 --> 00:31:38,800 from the Jet Propulsion Laboratory JPL 589 00:31:44,280 --> 00:31:41,740 is a NASA Center in LA caƱada Flintridge 590 00:31:46,620 --> 00:31:44,290 and Pasadena California and managed by 591 00:31:49,830 --> 00:31:46,630 the California Institute of Technology 592 00:31:53,910 --> 00:31:49,840 let's check out our display we are now 593 00:31:58,350 --> 00:31:53,920 about just a little under 26 minutes 594 00:32:23,009 --> 00:32:13,340 [Music] 595 00:32:25,859 --> 00:32:23,019 well the Cassini team considers itself a 596 00:32:29,639 --> 00:32:25,869 family a team that works together and 597 00:32:32,549 --> 00:32:29,649 plays together and here is one example 598 00:32:36,450 --> 00:32:32,559 the Cassini virtual singers they have a 599 00:32:41,460 --> 00:32:36,460 knack for putting a Cassini spin on just 600 00:32:44,669 --> 00:32:41,470 about any show to me and I saw Todd 601 00:32:46,440 --> 00:32:44,679 barber in that group Todd it is a very 602 00:32:49,379 --> 00:32:46,450 close-knit group and a 603 00:32:51,629 --> 00:32:49,389 multi-generational group I mean some 604 00:32:53,580 --> 00:32:51,639 people have spent their entire careers 605 00:32:57,029 --> 00:32:53,590 on this mission and others are just 606 00:32:58,830 --> 00:32:57,039 starting their careers on Cassini Todd 607 00:33:01,080 --> 00:32:58,840 barber is standing by with one of the 608 00:33:04,349 --> 00:33:01,090 younger members of the team guidance and 609 00:33:07,590 --> 00:33:04,359 control engineer Joni stupic who started 610 00:33:08,970 --> 00:33:07,600 her career with Cassini right yes that's 611 00:33:10,889 --> 00:33:08,980 right and I've been on since before 612 00:33:12,960 --> 00:33:10,899 launch but it's so wonderful to have 613 00:33:16,440 --> 00:33:12,970 young engineers join the project welcome 614 00:33:18,090 --> 00:33:16,450 Joni and Joni is an attitude control 615 00:33:20,039 --> 00:33:18,100 engineer on the project and can you 616 00:33:23,909 --> 00:33:20,049 explain what that means to our viewers 617 00:33:26,159 --> 00:33:23,919 sure absolutely so I and my team are in 618 00:33:27,690 --> 00:33:26,169 charge of the orientation of the 619 00:33:30,389 --> 00:33:27,700 spacecraft so we point all of the 620 00:33:32,609 --> 00:33:30,399 cameras and the antennae that's great 621 00:33:35,070 --> 00:33:32,619 and you have a particularly important 622 00:33:36,899 --> 00:33:35,080 role this evening right or this morning 623 00:33:39,090 --> 00:33:36,909 I guess I should say absolutely so as 624 00:33:41,820 --> 00:33:39,100 Earl and Linda have both alluded to we 625 00:33:43,919 --> 00:33:41,830 want to get every last possible second 626 00:33:46,259 --> 00:33:43,929 of information which means our antenna 627 00:33:48,060 --> 00:33:46,269 needs to be pointed towards Earth for as 628 00:33:49,680 --> 00:33:48,070 long as we possibly can as we enter into 629 00:33:51,899 --> 00:33:49,690 the atmosphere so I'm just gonna start 630 00:33:53,940 --> 00:33:51,909 trying to tug us away so we want to hold 631 00:33:55,499 --> 00:33:53,950 the antenna studies we possibly can for 632 00:33:57,960 --> 00:33:55,509 that whole time and how do you do that 633 00:34:00,869 --> 00:33:57,970 we have little engines or thrusters that 634 00:34:03,779 --> 00:34:00,879 we use to hold us very wonderful so 635 00:34:05,489 --> 00:34:03,789 that's and basically we will lose the 636 00:34:07,560 --> 00:34:05,499 battle with Saturn's atmosphere we will 637 00:34:11,369 --> 00:34:07,570 and if we go to the graphic here we see 638 00:34:13,289 --> 00:34:11,379 the thrusters firing as we try and hold 639 00:34:15,119 --> 00:34:13,299 that antenna for as long as we can and 640 00:34:16,799 --> 00:34:15,129 that will last for only about a minute 641 00:34:18,480 --> 00:34:16,809 until the trusters are finally 642 00:34:21,359 --> 00:34:18,490 overwhelmed and we can no longer point 643 00:34:23,520 --> 00:34:21,369 man wow that's amazing 644 00:34:26,909 --> 00:34:23,530 but those precious seconds of science 645 00:34:29,880 --> 00:34:26,919 data are are worth every thruster pulse 646 00:34:31,860 --> 00:34:29,890 we put on the every every 647 00:34:33,780 --> 00:34:31,870 yeah we're learning all about Saturn's 648 00:34:36,150 --> 00:34:33,790 atmosphere with all the instruments we 649 00:34:38,520 --> 00:34:36,160 can as we go in yeah we want to point as 650 00:34:39,690 --> 00:34:38,530 long as we can so you started your 651 00:34:41,430 --> 00:34:39,700 career on this mission how are you 652 00:34:43,020 --> 00:34:41,440 feeling tonight knowing it's we have to 653 00:34:44,820 --> 00:34:43,030 say goodbye to our beautiful spacecraft 654 00:34:46,320 --> 00:34:44,830 is definitely better sweetie I started 655 00:34:50,370 --> 00:34:46,330 my career I was in high school when 656 00:34:51,810 --> 00:34:50,380 Cassini arrived at Saturn so it's you 657 00:34:53,580 --> 00:34:51,820 know it's really exciting and I'm really 658 00:34:55,050 --> 00:34:53,590 proud to have worked on such you know 659 00:34:57,030 --> 00:34:55,060 incredible mission and be part of such a 660 00:34:58,650 --> 00:34:57,040 wonderful family but it's gonna be sad 661 00:35:00,510 --> 00:34:58,660 you know I'm used to checking how the 662 00:35:02,010 --> 00:35:00,520 spacecraft is feeling every morning and 663 00:35:04,410 --> 00:35:02,020 things like that so it'll be a little 664 00:35:06,300 --> 00:35:04,420 sad to not have that anymore I 665 00:35:07,980 --> 00:35:06,310 definitely agree there and and we're so 666 00:35:10,080 --> 00:35:07,990 grateful for your contributions and all 667 00:35:11,310 --> 00:35:10,090 the young engineers on the project as 668 00:35:15,150 --> 00:35:11,320 well as the veterans that have been 669 00:35:18,060 --> 00:35:15,160 around since launch thank you Joe we got 670 00:35:20,700 --> 00:35:18,070 a few tricks up our sleeve so if we can 671 00:35:25,110 --> 00:35:20,710 head back to the radio science display 672 00:35:28,500 --> 00:35:25,120 and check and see still looking good so 673 00:35:31,410 --> 00:35:28,510 we have a strong X and s band signal so 674 00:35:33,600 --> 00:35:31,420 our as Earl mentioned our fate is sealed 675 00:35:35,220 --> 00:35:33,610 we we've met our planetary protection 676 00:35:37,380 --> 00:35:35,230 requirement we know we're going to 677 00:35:38,700 --> 00:35:37,390 impact Saturn and take care of that the 678 00:35:41,250 --> 00:35:38,710 next thing that's important is to hold 679 00:35:44,220 --> 00:35:41,260 that signal as long as possible and get 680 00:35:46,910 --> 00:35:44,230 every last precious bit of science data 681 00:35:50,250 --> 00:35:46,920 so so far so good Gaye back to you 682 00:35:52,650 --> 00:35:50,260 thanks Joanie it is about 33 minutes 683 00:36:01,810 --> 00:35:52,660 past the hour and the estimated time of 684 00:36:01,820 --> 00:36:07,720 [Music] 685 00:36:27,590 --> 00:36:09,520 you 686 00:36:58,600 --> 00:36:35,330 [Music] 687 00:37:04,010 --> 00:37:01,940 the cassini-huygens mission has been an 688 00:37:07,160 --> 00:37:04,020 epic adventure around the Saturn system 689 00:37:10,250 --> 00:37:07,170 it has sent home mountains of science 690 00:37:12,710 --> 00:37:10,260 data stunning images the spacecraft 691 00:37:16,100 --> 00:37:12,720 performed beautifully the mission 692 00:37:18,260 --> 00:37:16,110 fulfilled its goals and vensim members 693 00:37:21,700 --> 00:37:18,270 say they couldn't have asked for 694 00:37:21,710 --> 00:37:27,310 [Music] 695 00:37:43,010 --> 00:37:30,890 this is tight mana control 696 00:37:45,500 --> 00:37:43,020 all the systems are go I worked on the 697 00:37:51,079 --> 00:37:45,510 Cassini project for almost 30 years and 698 00:37:53,089 --> 00:37:51,089 that's an entire Saturn orbit the beauty 699 00:37:55,430 --> 00:37:53,099 of Cassini is the design 700 00:37:57,740 --> 00:37:55,440 it's the largest outer planetary 701 00:38:00,559 --> 00:37:57,750 spacecraft ever built twelve different 702 00:38:03,650 --> 00:38:00,569 instruments the Huygens probe built by 703 00:38:10,049 --> 00:38:03,660 the European Space Agency it's just a 704 00:38:10,059 --> 00:38:18,790 three-two-one 705 00:38:38,940 --> 00:38:33,030 [Music] 706 00:38:41,160 --> 00:38:38,950 we turned the cassini cameras down to 707 00:38:43,079 --> 00:38:41,170 look at the Rings revealing them in a 708 00:38:45,630 --> 00:38:43,089 way we had never seen them before 709 00:38:50,580 --> 00:38:45,640 I remember coming back to JPL early in 710 00:38:55,890 --> 00:38:53,100 and watch those pictures one by one come 711 00:38:58,260 --> 00:38:55,900 down and I felt I could almost reach out 712 00:39:00,010 --> 00:38:58,270 and touch the rings that were right 713 00:39:05,910 --> 00:39:00,020 there 714 00:39:08,740 --> 00:39:08,049 we have been collaborating with the 715 00:39:11,079 --> 00:39:08,750 Europeans 716 00:39:16,450 --> 00:39:11,089 ever since launched to make sure that we 717 00:39:18,400 --> 00:39:16,460 had everything right for wagons the 718 00:39:21,720 --> 00:39:18,410 Huygens probe has dropped onto Titan 719 00:39:25,870 --> 00:39:21,730 these are images from billion miles away 720 00:39:27,130 --> 00:39:25,880 on the surface of Titan they're boulders 721 00:39:29,650 --> 00:39:27,140 there were pebbles we're in a dry 722 00:39:34,200 --> 00:39:29,660 lakebed and I still get goose bumps this 723 00:39:38,530 --> 00:39:36,700 looking back at what we were planning to 724 00:39:42,300 --> 00:39:38,540 do in those first four years we've gone 725 00:39:44,590 --> 00:39:42,310 so far beyond that we remapped our 726 00:39:49,450 --> 00:39:44,600 investigations to concentrate on the 727 00:39:51,700 --> 00:39:49,460 questions the cassini raised two of our 728 00:39:55,060 --> 00:39:51,710 instruments actually sampled the plume 729 00:39:57,520 --> 00:39:55,070 of Enceladus as we flew through tasting 730 00:40:00,640 --> 00:39:57,530 the gas measuring the particles in a way 731 00:40:02,950 --> 00:40:00,650 that we hadn't planned Cassini has 732 00:40:05,470 --> 00:40:02,960 changed the paradigm of where we might 733 00:40:11,650 --> 00:40:05,480 look for life that will be one of her 734 00:40:17,110 --> 00:40:11,660 legacies 13 years of exploring Saturn it 735 00:40:28,230 --> 00:40:25,460 [Music] 736 00:40:30,950 --> 00:40:28,240 all right well joining me now is NASA 737 00:40:34,170 --> 00:40:30,960 director of planetary science Jim Green 738 00:40:37,080 --> 00:40:34,180 some of Cassini's greatest 739 00:40:39,840 --> 00:40:37,090 accomplishments came as big surprises 740 00:40:41,190 --> 00:40:39,850 didn't it they did absolutely you know 741 00:40:44,640 --> 00:40:41,200 one of the ones that's pretty 742 00:40:46,650 --> 00:40:44,650 spectacular obviously is Enceladus now 743 00:40:48,690 --> 00:40:46,660 you may not really understand the 744 00:40:52,410 --> 00:40:48,700 importance of having a spacecraft with 745 00:40:54,120 --> 00:40:52,420 all kinds of instruments including 746 00:40:56,160 --> 00:40:54,130 magnetometers and plasma wave 747 00:40:59,520 --> 00:40:56,170 instruments but it was really discovered 748 00:41:03,030 --> 00:40:59,530 the plumes by a magnetometer and so as 749 00:41:06,060 --> 00:41:03,040 the spacecraft was doing a flyby what 750 00:41:08,910 --> 00:41:06,070 was happening is the plumes were being 751 00:41:10,590 --> 00:41:08,920 blasted out of the tiger stripes they 752 00:41:13,290 --> 00:41:10,600 were being ionized and they're loading 753 00:41:15,630 --> 00:41:13,300 down the field dragging it by and so the 754 00:41:17,630 --> 00:41:15,640 magnetometer saw the wave of the field 755 00:41:19,980 --> 00:41:17,640 in a place that they hadn't expected 756 00:41:21,780 --> 00:41:19,990 that gave a hint that something was 757 00:41:24,660 --> 00:41:21,790 going on and it needed to be looked at 758 00:41:26,460 --> 00:41:24,670 and so then the next pass they came up 759 00:41:28,890 --> 00:41:26,470 with the idea well let's look at it in 760 00:41:32,880 --> 00:41:28,900 backlight and wow there were the plumes 761 00:41:35,220 --> 00:41:32,890 and that started then a series of new 762 00:41:37,470 --> 00:41:35,230 orbits and new trajectories to try to go 763 00:41:39,690 --> 00:41:37,480 through and taste the plumes and get 764 00:41:42,690 --> 00:41:39,700 even more details about what's happening 765 00:41:46,320 --> 00:41:42,700 at Enceladus and how does this discovery 766 00:41:50,190 --> 00:41:46,330 sort of change the way we look for life 767 00:41:53,910 --> 00:41:50,200 in the solar system well this is really 768 00:41:57,270 --> 00:41:53,920 a calling if you will of hey you're 769 00:41:59,730 --> 00:41:57,280 gonna have to come back because there's 770 00:42:01,680 --> 00:41:59,740 several things we know about life one it 771 00:42:05,010 --> 00:42:01,690 metabolizes that means it takes in a 772 00:42:06,810 --> 00:42:05,020 liquid it then uses that to extract 773 00:42:09,540 --> 00:42:06,820 energy and then the liquid issues to 774 00:42:12,600 --> 00:42:09,550 extract the waste but then it evolves 775 00:42:14,430 --> 00:42:12,610 and then it also reproduces well I can't 776 00:42:17,760 --> 00:42:14,440 measure any of those from our spacecraft 777 00:42:20,970 --> 00:42:17,770 other than going after the water so once 778 00:42:23,490 --> 00:42:20,980 we see an area that has water then we 779 00:42:26,160 --> 00:42:23,500 know that is a possibility of being a 780 00:42:29,760 --> 00:42:26,170 habitable environment and transitioning 781 00:42:31,710 --> 00:42:29,770 to the other big story also from Cassini 782 00:42:34,680 --> 00:42:31,720 is another moon 783 00:42:36,690 --> 00:42:34,690 oh yeah Titan what a beautiful moon this 784 00:42:39,200 --> 00:42:36,700 is you know it's bigger than the planet 785 00:42:41,609 --> 00:42:39,210 Mercury its atmosphere is actually a 786 00:42:43,980 --> 00:42:41,619 significant one it's twice the pressure 787 00:42:45,480 --> 00:42:43,990 that we have here on earth it's similar 788 00:42:47,460 --> 00:42:45,490 in the sense that it has a lot of 789 00:42:50,790 --> 00:42:47,470 nitrogen effect it's dominated by 790 00:42:53,280 --> 00:42:50,800 nitrogen but it also has liquid on its 791 00:42:56,150 --> 00:42:53,290 surface which we know now is methane and 792 00:43:00,300 --> 00:42:56,160 there's a hydrological cycle of 793 00:43:02,520 --> 00:43:00,310 evaporation transport rain and then new 794 00:43:04,440 --> 00:43:02,530 Lakes are forming in other locations on 795 00:43:07,320 --> 00:43:04,450 the moon and that's an incredible 796 00:43:09,960 --> 00:43:07,330 science legacy but Titan also helped us 797 00:43:13,320 --> 00:43:09,970 with an engineering legacy as well oh 798 00:43:16,770 --> 00:43:13,330 absolutely the concept of using Titan to 799 00:43:19,230 --> 00:43:16,780 do lunar or to do a gravity assist swing 800 00:43:21,450 --> 00:43:19,240 buys that then enable those spacecraft 801 00:43:24,480 --> 00:43:21,460 to get into dipper different orbits is a 802 00:43:26,820 --> 00:43:24,490 fabulous concept because while we're 803 00:43:28,940 --> 00:43:26,830 doing that you know and here's the Koosh 804 00:43:32,040 --> 00:43:28,950 ball as we say all these spectacular 805 00:43:35,250 --> 00:43:32,050 flybys allow us to look at Titan in 806 00:43:38,640 --> 00:43:35,260 detail so from multiple flybys we can 807 00:43:42,510 --> 00:43:38,650 get a global view of that moon and we're 808 00:43:47,130 --> 00:43:42,520 using that same concept at Jupiter with 809 00:43:50,400 --> 00:43:47,140 another moon called Europa before we go 810 00:43:53,550 --> 00:43:50,410 I wanted to bring up the e-book because 811 00:43:55,740 --> 00:43:53,560 the most fantastic things about this 812 00:43:57,990 --> 00:43:55,750 mission has been the imagery could you 813 00:44:00,990 --> 00:43:58,000 tell us a little bit about that well you 814 00:44:04,650 --> 00:44:01,000 know we really needed to make sure that 815 00:44:08,849 --> 00:44:04,660 we had wonderfully described and and and 816 00:44:11,970 --> 00:44:08,859 beautifully set images that were 817 00:44:13,770 --> 00:44:11,980 accessible to everyone and after you 818 00:44:16,260 --> 00:44:13,780 know four hundred fifty thousand plus 819 00:44:19,109 --> 00:44:16,270 images it's so hard to pick but you know 820 00:44:23,010 --> 00:44:19,119 we were able to go back in get a hundred 821 00:44:26,579 --> 00:44:23,020 beautiful images or more and videos and 822 00:44:29,220 --> 00:44:26,589 all kinds of yeah where if you want to 823 00:44:32,970 --> 00:44:29,230 get it you can down look it off the 824 00:44:35,280 --> 00:44:32,980 internet nasa.gov slice ebooks alright 825 00:44:37,470 --> 00:44:35,290 well Jim thanks for joining us thanks 826 00:44:40,620 --> 00:44:37,480 for taking time for us and I know you 827 00:44:45,560 --> 00:44:40,630 want to get back into that control thank 828 00:46:48,020 --> 00:45:11,350 [Music] 829 00:46:54,000 --> 00:46:51,359 while we are a little over ten minutes 830 00:46:56,700 --> 00:46:54,010 away from the loss of signal so we will 831 00:46:58,560 --> 00:46:56,710 be focusing our attention to the control 832 00:47:01,290 --> 00:46:58,570 room very soon now but before we do 833 00:47:04,140 --> 00:47:01,300 let's take a moment to chat with JPL 834 00:47:05,130 --> 00:47:04,150 director Mike Watkins so Mike how are 835 00:47:09,150 --> 00:47:05,140 you feeling 836 00:47:10,500 --> 00:47:09,160 well first good morning we always tend 837 00:47:13,800 --> 00:47:10,510 to do these events somehow at 3:00 in 838 00:47:14,960 --> 00:47:13,810 the morning or 5:00 in the morning but 839 00:47:17,580 --> 00:47:14,970 you know it's kind of a bittersweet 840 00:47:18,839 --> 00:47:17,590 event for all of us I think for me 841 00:47:20,820 --> 00:47:18,849 personally it's more sweet than bitter 842 00:47:23,130 --> 00:47:20,830 because the Cassini's been such a 843 00:47:24,300 --> 00:47:23,140 fantastic mission but I think you know 844 00:47:26,640 --> 00:47:24,310 one of the important things about these 845 00:47:28,530 --> 00:47:26,650 events is to celebrate the incredible 846 00:47:30,630 --> 00:47:28,540 hard work that decades of hard work of 847 00:47:32,670 --> 00:47:30,640 the team that designed built and 848 00:47:34,140 --> 00:47:32,680 operated Cassini and that's really at 849 00:47:35,880 --> 00:47:34,150 the heart of the spacecraft is really 850 00:47:37,380 --> 00:47:35,890 the people that worked on it and the 851 00:47:39,240 --> 00:47:37,390 people that have been operating it and 852 00:47:41,160 --> 00:47:39,250 this is a great time to celebrate those 853 00:47:43,140 --> 00:47:41,170 those that a level of dedication that 854 00:47:45,630 --> 00:47:43,150 devotion you know to work on something 855 00:47:47,760 --> 00:47:45,640 for 10 20 30 years that that's that's 856 00:47:50,430 --> 00:47:47,770 sort of unparalleled in in human history 857 00:47:53,970 --> 00:47:50,440 so how do you think Cassini will be 858 00:47:55,500 --> 00:47:53,980 remembered in the science books well I'd 859 00:47:57,060 --> 00:47:55,510 say most of the science books most of 860 00:47:59,579 --> 00:47:57,070 most what we have in science books about 861 00:48:01,380 --> 00:47:59,589 Saturn come from Cassini right so we 862 00:48:02,760 --> 00:48:01,390 will be long remembered I mean you look 863 00:48:05,400 --> 00:48:02,770 at almost everything we know came from 864 00:48:06,960 --> 00:48:05,410 Cassini about Saturn but you know I 865 00:48:08,700 --> 00:48:06,970 think one of the greatest legacies of a 866 00:48:09,810 --> 00:48:08,710 mission is is not just a scientific 867 00:48:11,760 --> 00:48:09,820 discoveries that makes it what you'll 868 00:48:13,290 --> 00:48:11,770 learn about but the fact that you you 869 00:48:15,660 --> 00:48:13,300 make discoveries that are so compelling 870 00:48:17,339 --> 00:48:15,670 that you have to go back and that's 871 00:48:18,930 --> 00:48:17,349 really the part of what makes the end of 872 00:48:20,490 --> 00:48:18,940 Cassini sweet is that it's the 873 00:48:23,070 --> 00:48:20,500 discoveries are so compelling that we 874 00:48:24,900 --> 00:48:23,080 have to go back we will go back and fly 875 00:48:26,609 --> 00:48:24,910 through the geysers of Enceladus and 876 00:48:28,890 --> 00:48:26,619 we'll go back and look at Titan because 877 00:48:31,650 --> 00:48:28,900 it's just the Cassini findings are just 878 00:48:35,130 --> 00:48:31,660 they're just groundbreaking but the way 879 00:48:37,650 --> 00:48:35,140 missions are one missions sort of sets 880 00:48:42,030 --> 00:48:37,660 the foot steps for the next mission so 881 00:48:43,829 --> 00:48:42,040 what's coming up next after Cassini so 882 00:48:45,690 --> 00:48:43,839 one of things we've learned about the 883 00:48:47,550 --> 00:48:45,700 outer solar system is how much water is 884 00:48:48,990 --> 00:48:47,560 there so we used to think that most of 885 00:48:51,030 --> 00:48:49,000 the water was here in the inner solar 886 00:48:52,680 --> 00:48:51,040 system here on earth for example the 887 00:48:53,170 --> 00:48:52,690 habitable zone Goldilocks zone between 888 00:48:55,690 --> 00:48:53,180 more 889 00:48:57,519 --> 00:48:55,700 between Venus and Mars where we are we 890 00:48:59,769 --> 00:48:57,529 now realize that there's a lot of water 891 00:49:02,410 --> 00:48:59,779 in the outer solar system so Europa for 892 00:49:04,029 --> 00:49:02,420 example the moon of Jupiter Enceladus 893 00:49:05,380 --> 00:49:04,039 and I think what you see compelling 894 00:49:07,359 --> 00:49:05,390 about the outer planets is to go back 895 00:49:09,460 --> 00:49:07,369 and look at those ocean worlds in great 896 00:49:10,960 --> 00:49:09,470 detail fly through the geysers try to 897 00:49:12,519 --> 00:49:10,970 get drilled down through the ice take a 898 00:49:14,890 --> 00:49:12,529 look at the composition of the ice and 899 00:49:16,510 --> 00:49:14,900 as Jim Green noted you know are these 900 00:49:18,730 --> 00:49:16,520 habitable places or these places where 901 00:49:20,620 --> 00:49:18,740 there could be life and so we here at 902 00:49:22,150 --> 00:49:20,630 JPL and and NASA we have plans to go 903 00:49:24,940 --> 00:49:22,160 back to many of these ocean worlds as 904 00:49:27,099 --> 00:49:24,950 many as we can the next one up is a 905 00:49:29,079 --> 00:49:27,109 flyby of multiple flybys of Europa we 906 00:49:31,059 --> 00:49:29,089 call Europa clipper where I'll be in 907 00:49:33,039 --> 00:49:31,069 orbit around Jupiter and flyby europa 40 908 00:49:36,430 --> 00:49:33,049 or 50 times and taking a very close look 909 00:49:38,410 --> 00:49:36,440 at at that ocean and from above the eyes 910 00:49:40,510 --> 00:49:38,420 of course and the composition of the ice 911 00:49:43,299 --> 00:49:40,520 and then later we'll will make our way 912 00:49:45,370 --> 00:49:43,309 to the other ocean world's oceans are 913 00:49:47,500 --> 00:49:45,380 the things to look at right now it's 914 00:49:49,089 --> 00:49:47,510 absolutely you know as the search for 915 00:49:51,370 --> 00:49:49,099 life is one of the is one of the 916 00:49:52,779 --> 00:49:51,380 compelling threads for for a NASA for 917 00:49:54,970 --> 00:49:52,789 the science mission directorate and for 918 00:49:56,140 --> 00:49:54,980 JPL we're looking for for life in our 919 00:49:57,789 --> 00:49:56,150 solar system and of course we're looking 920 00:49:59,470 --> 00:49:57,799 for life outside the solar system we're 921 00:50:01,210 --> 00:49:59,480 looking for exoplanets and other Earth's 922 00:50:04,809 --> 00:50:01,220 but the ocean worlds look like an 923 00:50:07,120 --> 00:50:04,819 incredibly compelling target well thank 924 00:50:09,460 --> 00:50:07,130 you so much Mike for coming by and 925 00:50:12,250 --> 00:50:09,470 joining us I know all the guys want to 926 00:50:14,079 --> 00:50:12,260 get back in there in the storm and be 927 00:50:16,210 --> 00:50:14,089 there for the militiaman all right 928 00:50:18,400 --> 00:50:16,220 thanks thank you so much you're watching 929 00:50:20,200 --> 00:50:18,410 live coverage of Cassini's final hour 930 00:50:22,779 --> 00:50:20,210 from NASA's Jet Propulsion Laboratory 931 00:50:24,640 --> 00:50:22,789 JPL is located in lucky outer Flintridge 932 00:50:27,430 --> 00:50:24,650 in Pasadena and managed by the 933 00:50:30,400 --> 00:50:27,440 California Institute of Technology let's 934 00:50:33,880 --> 00:50:30,410 take a look at our last our display or 935 00:50:36,760 --> 00:50:33,890 display shows that we are just over 936 00:50:41,609 --> 00:50:36,770 seven minutes away from the end of 937 00:50:46,000 --> 00:50:41,619 mission and it's now traveling about 938 00:50:49,420 --> 00:50:46,010 seventy five thousand miles per hour so 939 00:50:55,660 --> 00:50:49,430 Cassini is traveling rapidly towards 940 00:51:01,310 --> 00:50:58,550 for all the beauty and the exotic 941 00:51:04,010 --> 00:51:01,320 features that we found those are places 942 00:51:06,500 --> 00:51:04,020 that startled and amazed but not a place 943 00:51:09,680 --> 00:51:06,510 where you can live and I think it gives 944 00:51:13,010 --> 00:51:09,690 you a perspective on the earth and what 945 00:51:19,340 --> 00:51:13,020 a wonderful place it is and more impetus 946 00:51:22,370 --> 00:51:19,350 to perhaps take care of it we are 947 00:51:24,590 --> 00:51:22,380 getting close to time and time where we 948 00:51:27,050 --> 00:51:24,600 should lose that signal folks are 949 00:51:29,660 --> 00:51:27,060 watching the radio science the display 950 00:51:32,840 --> 00:51:29,670 right now so let's go to Todd and Joanie 951 00:51:34,550 --> 00:51:32,850 and Mission Control hi gay well six 952 00:51:37,970 --> 00:51:34,560 minutes to go till we're six feet under 953 00:51:39,890 --> 00:51:37,980 so it's it's gonna be hard to say 954 00:51:42,800 --> 00:51:39,900 goodbye here radio display still looks 955 00:51:45,560 --> 00:51:42,810 great as we just saw on screen Mission 956 00:51:48,530 --> 00:51:45,570 Control we're I hear a lot of buzz in 957 00:51:50,750 --> 00:51:48,540 the room about the thruster cycles 958 00:51:52,730 --> 00:51:50,760 because the thrusters are firing we're 959 00:51:54,620 --> 00:51:52,740 still outside the atmosphere and they're 960 00:51:58,310 --> 00:51:54,630 just keeping dead bats keeping that 961 00:52:01,250 --> 00:51:58,320 pointing on earth as long as possible so 962 00:52:46,580 --> 00:52:01,260 things aren't too crazy yet but once we 963 00:52:52,840 --> 00:52:46,590 hit that atmosphere super fast we have 964 00:53:05,000 --> 00:52:52,850 two frames thank you telecom systems Lee 965 00:53:13,770 --> 00:53:09,620 frequencies to increase copy thank you 966 00:53:15,570 --> 00:53:13,780 propulsion systems Lee pressures and 967 00:53:17,570 --> 00:53:15,580 temperatures are nominal propulsion is 968 00:53:21,000 --> 00:53:17,580 nominal happy thank you 969 00:53:23,000 --> 00:53:21,010 missions lighting systems Lee mission 970 00:53:25,349 --> 00:53:23,010 planning is nominal Chucky thank you 971 00:53:25,950 --> 00:53:25,359 flight director system stage everything 972 00:53:32,810 --> 00:53:25,960 is normal 973 00:53:36,510 --> 00:53:32,820 copy thank you 974 00:53:38,130 --> 00:53:36,520 so what we just heard was the room going 975 00:53:41,339 --> 00:53:38,140 around and checking all of the the 976 00:53:43,520 --> 00:53:41,349 subsystem so so far all of the sub 977 00:53:45,450 --> 00:53:43,530 systems are nominal about four minutes 978 00:53:49,140 --> 00:53:45,460 three and a half to four minutes away 979 00:53:51,089 --> 00:53:49,150 from the end we went for a blow rate to 980 00:53:54,540 --> 00:53:51,099 high rate control can you comment on 981 00:53:56,339 --> 00:53:54,550 that sure so we have our computer that's 982 00:53:57,960 --> 00:53:56,349 controlling our pointing has different 983 00:53:59,400 --> 00:53:57,970 modes and it's smart enough to know when 984 00:54:02,490 --> 00:53:59,410 we start having to fight a little harder 985 00:54:03,540 --> 00:54:02,500 so we heard that the computer 986 00:54:10,290 --> 00:54:03,550 acknowledged that we start having to 987 00:54:11,940 --> 00:54:10,300 fight a little bit okay thanks we were 988 00:54:14,640 --> 00:54:11,950 marking earlier it's incredible this 989 00:54:16,650 --> 00:54:14,650 entire spacecraft runs on 600 watts of 990 00:54:19,020 --> 00:54:16,660 power how much power is that yeah that'd 991 00:54:22,440 --> 00:54:19,030 have a hairdryer it's all we got right 992 00:54:24,570 --> 00:54:22,450 now I wouldn't talk about how little 993 00:54:26,910 --> 00:54:24,580 fuel we have left it's about one percent 994 00:54:28,710 --> 00:54:26,920 plus or minus two percent that's one 995 00:54:33,720 --> 00:54:28,720 reason we're had men the satyrs 996 00:54:50,590 --> 00:54:33,730 atmosphere tonight under three minutes 997 00:54:53,860 --> 00:54:52,420 we should definitely emphasize we don't 998 00:54:55,990 --> 00:54:53,870 know exactly when we'll lose signal 999 00:55:01,350 --> 00:54:56,000 depends on the Saturn atmosphere and how 1000 00:55:08,200 --> 00:55:06,130 radio signal looks wonderful X band and 1001 00:55:10,030 --> 00:55:08,210 s van two different radio bands still 1002 00:55:11,470 --> 00:55:10,040 getting the signal from Cassini we're 1003 00:55:18,810 --> 00:55:11,480 approaching about 10 degrees north 1004 00:55:24,609 --> 00:55:21,580 3,000 miles from the from the cloud top 1005 00:55:26,410 --> 00:55:24,619 I remember seeing we were gonna hit the 1006 00:55:34,780 --> 00:55:26,420 atmosphere about 77,000 miles an hour I 1007 00:55:45,170 --> 00:55:34,790 see we're close so two minutes and 1008 00:55:53,569 --> 00:55:51,440 we're starting to this is a cs1 yes 1009 00:55:54,799 --> 00:55:53,579 we're still waiting for transition to 1010 00:55:56,059 --> 00:55:54,809 hire it mode but it looks like we're 1011 00:55:59,839 --> 00:55:56,069 going to start accumulating thruster on 1012 00:56:03,410 --> 00:55:59,849 time at a higher rate now and our 1013 00:56:08,150 --> 00:56:03,420 attitude control error is starting to to 1014 00:56:09,980 --> 00:56:08,160 be more active we're just starting to 1015 00:56:12,529 --> 00:56:09,990 sense yeah right yeah yeah we can start 1016 00:56:13,789 --> 00:56:12,539 seeing the spacecraft starting to lose 1017 00:56:17,150 --> 00:56:13,799 the battle with the atmosphere this is 1018 00:56:18,950 --> 00:56:17,160 ACS one we just had the transition to 1019 00:56:20,359 --> 00:56:18,960 high rate mode and with this we're going 1020 00:56:23,120 --> 00:56:20,369 to start seeing restaurant I'm 1021 00:56:25,430 --> 00:56:23,130 accumulating very quickly and the dead 1022 00:56:28,880 --> 00:56:25,440 band is going to clamp down to 0.5 0.5 1023 00:56:38,480 --> 00:56:28,890 to Miller ad and we are in the 1024 00:56:45,559 --> 00:56:38,490 atmosphere we can confirm what ACS have 1025 00:56:47,120 --> 00:56:45,569 told you copy thank you I'm just 1026 00:56:53,650 --> 00:56:47,130 starting to see the thrusters fire more 1027 00:56:53,660 --> 00:56:58,310 yeah 1028 00:56:58,320 --> 00:57:05,060 radio signals still holding 30 seconds 1029 00:57:10,350 --> 00:57:07,590 systems lead mission planning your 1030 00:57:11,670 --> 00:57:10,360 admission plenty spacecraft has just 1031 00:57:18,350 --> 00:57:11,680 crossed ten degrees north latitude 1032 00:57:24,780 --> 00:57:21,950 systems ACS one 1033 00:57:26,220 --> 00:57:24,790 with the additional thruster on time 1034 00:57:40,279 --> 00:57:26,230 we're going to also see the dead dance 1035 00:57:40,289 --> 00:58:05,720 across there zero time 1036 00:58:05,730 --> 00:58:40,200 go ahead price lecture 1037 00:58:46,680 --> 00:58:43,349 project manager flight director go ahead 1038 00:58:58,370 --> 00:58:46,690 okay we call loss of signal loss of next 1039 00:59:06,430 --> 00:59:04,069 Casso signal at 1 1 5 5 4 6 4 the SDN so 1040 00:59:12,140 --> 00:59:06,440 that would be the end of the spacecraft 1041 00:59:15,319 --> 00:59:12,150 at Project Manager on FSO court maybe a 1042 00:59:18,079 --> 00:59:15,329 trickle of telemetry left but just heard 1043 00:59:21,259 --> 00:59:18,089 the signal from the spacecraft is gone 1044 00:59:25,900 --> 00:59:21,269 and within the next 45 seconds so will 1045 00:59:28,939 --> 00:59:25,910 be the spacecraft I hope you're all as 1046 00:59:31,189 --> 00:59:28,949 deeply proud of this amazing 1047 00:59:33,439 --> 00:59:31,199 accomplishment congratulations to you 1048 00:59:36,229 --> 00:59:33,449 all this has been an incredible mission 1049 00:59:39,589 --> 00:59:36,239 an incredible spacecraft and you're all 1050 00:59:42,650 --> 00:59:39,599 an incredible team I'm going to call 1051 00:59:45,540 --> 00:59:42,660 this the end of mission project manager 1052 00:59:45,550 --> 01:01:00,560 [Applause] 1053 01:03:30,810 --> 01:01:11,780 [Music] 1054 01:03:36,550 --> 01:03:33,670 so just a short time ago 1055 01:03:40,210 --> 01:03:36,560 Julie Webster the space operations team 1056 01:03:42,880 --> 01:03:40,220 manager and program manager Earl Mays 1057 01:03:47,710 --> 01:03:42,890 called it the end of mission for Cassini 1058 01:03:50,680 --> 01:03:47,720 it came at about 455 as predicted let's 1059 01:03:53,850 --> 01:03:50,690 go now to Beckman auditorium and check 1060 01:03:56,200 --> 01:03:53,860 in with Morgan Cable she is with Cassini 1061 01:03:58,690 --> 01:03:56,210 interdisciplinary scientist Jonathan 1062 01:04:00,490 --> 01:03:58,700 Lumine to find out how the scientists 1063 01:04:01,000 --> 01:04:00,500 are doing and the team is doing down 1064 01:04:03,610 --> 01:04:01,010 there 1065 01:04:06,490 --> 01:04:03,620 the mission is certainly not over for 1066 01:04:13,050 --> 01:04:06,500 them because now there will be tons of 1067 01:04:18,010 --> 01:04:15,580 that's a very good point gain there's 1068 01:04:21,160 --> 01:04:18,020 gonna be lots of data to analyze for 1069 01:04:24,310 --> 01:04:21,170 years to come Jonathan how are you 1070 01:04:28,690 --> 01:04:24,320 feeling right now I'm actually breathing 1071 01:04:30,310 --> 01:04:28,700 again and I feel sad but we felt sad the 1072 01:04:33,100 --> 01:04:30,320 whole week we knew this was going to 1073 01:04:34,720 --> 01:04:33,110 happen and Cassini performed exactly as 1074 01:04:36,640 --> 01:04:34,730 she was supposed to and I'll bet there's 1075 01:04:39,580 --> 01:04:36,650 some terrific data on the ground now 1076 01:04:43,120 --> 01:04:39,590 about Saturn's atmosphere I'll bet 1077 01:04:46,660 --> 01:04:43,130 you're right what was your favorite 1078 01:04:48,240 --> 01:04:46,670 memory of Cassini well sure a story just 1079 01:04:52,720 --> 01:04:48,250 anything that comes to mind 1080 01:04:55,240 --> 01:04:52,730 my two favorite moments were both having 1081 01:04:57,070 --> 01:04:55,250 to do with Titan one was seeing the Seas 1082 01:05:00,130 --> 01:04:57,080 of Titan for the first time from the 1083 01:05:01,990 --> 01:05:00,140 radar on Cassini and the other was 1084 01:05:04,720 --> 01:05:02,000 seeing the surface of Titan from the 1085 01:05:07,570 --> 01:05:04,730 Huygens probe sitting with 30 other 1086 01:05:09,280 --> 01:05:07,580 people and a trailer in the middle of 1087 01:05:11,770 --> 01:05:09,290 Germany in the middle of winter it was 1088 01:05:14,440 --> 01:05:11,780 cold and dark and there were the first 1089 01:05:17,860 --> 01:05:14,450 pictures of gullies on the surface of an 1090 01:05:20,560 --> 01:05:17,870 alien world that had to just blow your 1091 01:05:21,890 --> 01:05:20,570 mind it did I was screaming so was 1092 01:05:23,840 --> 01:05:21,900 everyone else 1093 01:05:25,610 --> 01:05:23,850 well I think the moods been a little bit 1094 01:05:28,880 --> 01:05:25,620 more somber now but there was applause 1095 01:05:31,250 --> 01:05:28,890 right near the ends I think this is this 1096 01:05:34,820 --> 01:05:31,260 is the celebration of Cassini's life and 1097 01:05:36,200 --> 01:05:34,830 Cassini's legacy and we should talk a 1098 01:05:41,480 --> 01:05:36,210 little bit about the future what do you 1099 01:05:43,130 --> 01:05:41,490 see next for the Saturn system well what 1100 01:05:45,170 --> 01:05:43,140 I would like to see next for the Saturn 1101 01:05:47,120 --> 01:05:45,180 system is that we go back there and 1102 01:05:50,180 --> 01:05:47,130 there's so many things that Cassini has 1103 01:05:52,310 --> 01:05:50,190 given us in terms of a legacy to explore 1104 01:05:55,280 --> 01:05:52,320 and sell it us and the possibility of 1105 01:05:57,760 --> 01:05:55,290 life Titan in its amazing atmosphere in 1106 01:06:00,770 --> 01:05:57,770 lakes and seas and hydrologic cycle 1107 01:06:03,050 --> 01:06:00,780 Saturn and the Rings and the mysteries 1108 01:06:06,170 --> 01:06:03,060 of what lies beneath the clouds there's 1109 01:06:09,320 --> 01:06:06,180 an awful lot that Cassini has said to us 1110 01:06:10,820 --> 01:06:09,330 we must go back and explore yeah there's 1111 01:06:13,460 --> 01:06:10,830 a lot left to do in the Saturn system 1112 01:06:16,960 --> 01:06:13,470 and and elsewhere in the solar system as 1113 01:06:18,890 --> 01:06:16,970 well well this has been a an 1114 01:06:21,050 --> 01:06:18,900 international mission and an 1115 01:06:23,270 --> 01:06:21,060 intergenerational mission right it's 1116 01:06:25,430 --> 01:06:23,280 been such a joy for someone like me to 1117 01:06:29,990 --> 01:06:25,440 be able to be mentored by veterans like 1118 01:06:31,610 --> 01:06:30,000 you in terms of following on Cassini's 1119 01:06:34,880 --> 01:06:31,620 legacy and and mentoring the next 1120 01:06:36,830 --> 01:06:34,890 generation what do you see in terms of 1121 01:06:38,810 --> 01:06:36,840 next missions coming up being able to 1122 01:06:41,480 --> 01:06:38,820 bring in the next generation of 1123 01:06:44,690 --> 01:06:41,490 scientists and engineers first of all 1124 01:06:47,300 --> 01:06:44,700 I'm very very confident and optimistic 1125 01:06:49,760 --> 01:06:47,310 about the next generation because I can 1126 01:06:52,010 --> 01:06:49,770 see that the experts are here already so 1127 01:06:56,210 --> 01:06:52,020 we will be well served in the future of 1128 01:06:57,710 --> 01:06:56,220 course NASA is going back to Europa with 1129 01:06:59,240 --> 01:06:57,720 the Europa clipper which is very 1130 01:07:01,520 --> 01:06:59,250 exciting and the Europeans are doing 1131 01:07:04,030 --> 01:07:01,530 juice to the other Galilean moons and 1132 01:07:07,400 --> 01:07:04,040 there are a number of concepts out there 1133 01:07:10,190 --> 01:07:07,410 for going back to Enceladus and Titan 1134 01:07:12,500 --> 01:07:10,200 and to Saturn we don't know if any of 1135 01:07:14,510 --> 01:07:12,510 those are going to happen in the next 1136 01:07:16,360 --> 01:07:14,520 few years but we'll see there are lots 1137 01:07:18,740 --> 01:07:16,370 of ideas the important point is that 1138 01:07:23,000 --> 01:07:18,750 Cassini has got to be a jumping-off 1139 01:07:25,010 --> 01:07:23,010 point - even more exciting exploratory 1140 01:07:27,020 --> 01:07:25,020 missions we can't let it stop at this 1141 01:07:29,090 --> 01:07:27,030 point we have to keep going on we will 1142 01:07:31,040 --> 01:07:29,100 in the Jupiter system we need to go back 1143 01:07:31,540 --> 01:07:31,050 to Saturn we need to go to Uranus and 1144 01:07:33,220 --> 01:07:31,550 Neptune 1145 01:07:35,950 --> 01:07:33,230 we need to do the whole outer solar 1146 01:07:37,600 --> 01:07:35,960 system we need to the outer planets I 1147 01:07:40,060 --> 01:07:37,610 think one of the amazing things that 1148 01:07:43,870 --> 01:07:40,070 Cassini has shown us is that it's not a 1149 01:07:46,270 --> 01:07:43,880 boring cold place it's dynamic it's so 1150 01:07:49,300 --> 01:07:46,280 incredibly varied just the differences 1151 01:07:51,630 --> 01:07:49,310 in the moons of Saturn alone it inspires 1152 01:07:55,300 --> 01:07:51,640 us to want to go back and to learn more 1153 01:07:58,570 --> 01:07:55,310 yeah you know 40 40 years ago Voyager 1 1154 01:08:00,160 --> 01:07:58,580 was launched and it was Voyager 1 and 2 1155 01:08:03,220 --> 01:08:00,170 that broke open the outer solar system 1156 01:08:07,030 --> 01:08:03,230 for us told us that this was not a cold 1157 01:08:09,220 --> 01:08:07,040 dead grey place and then Galileo and 1158 01:08:12,040 --> 01:08:09,230 Cassini followed on and showed us what 1159 01:08:13,720 --> 01:08:12,050 really amazing things are going on in 1160 01:08:16,630 --> 01:08:13,730 those systems and that there might in 1161 01:08:19,660 --> 01:08:16,640 fact be places for life to exist in 1162 01:08:21,309 --> 01:08:19,670 Europa and Enceladus and Titan and I 1163 01:08:23,590 --> 01:08:21,319 have a poem I want to read to you as 1164 01:08:25,870 --> 01:08:23,600 well at some point is this a good time I 1165 01:08:27,900 --> 01:08:25,880 think it's a great time okay you know a 1166 01:08:30,730 --> 01:08:27,910 lot has been said about Cassini already 1167 01:08:34,840 --> 01:08:30,740 and the end of the mission but I think 1168 01:08:37,059 --> 01:08:34,850 that the best I can do to leave for me 1169 01:08:39,579 --> 01:08:37,069 leave the celebration of Cassini's and 1170 01:08:42,370 --> 01:08:39,589 is to read a bit of a poem by Swinburne 1171 01:08:45,640 --> 01:08:42,380 on the verge which was a nautical poem 1172 01:08:48,490 --> 01:08:45,650 about death and dying death sailing on 1173 01:08:50,860 --> 01:08:48,500 the sea as a metaphor for death and so 1174 01:08:52,510 --> 01:08:50,870 I'm gonna read the last few lines of it 1175 01:08:56,769 --> 01:08:52,520 and I've changed one of the words it'll 1176 01:08:59,500 --> 01:08:56,779 be obvious ah but here Cassini's heart 1177 01:09:02,620 --> 01:08:59,510 leaps yearning toward the gloom with 1178 01:09:06,789 --> 01:09:02,630 venturous glee though her pilot I behold 1179 01:09:09,400 --> 01:09:06,799 nor BAE nor Harbor rock nor Sheol from 1180 01:09:13,240 --> 01:09:09,410 the shore that hath no Shore beyond it 1181 01:09:15,269 --> 01:09:13,250 said in all the sea that's beautiful you 1182 01:09:18,309 --> 01:09:15,279 had to do that didn't you 1183 01:09:21,010 --> 01:09:18,319 Thank You Jonathan for everything well 1184 01:09:23,769 --> 01:09:21,020 Morgan the future is in your hands and 1185 01:09:25,720 --> 01:09:23,779 the hands of your generation and this 1186 01:09:28,150 --> 01:09:25,730 was a moment of transition it was not 1187 01:09:30,130 --> 01:09:28,160 the end and so let's go forth and 1188 01:09:31,110 --> 01:09:30,140 explore the solar system together all 1189 01:09:34,150 --> 01:09:31,120 right 1190 01:09:36,010 --> 01:09:34,160 that's a beautiful sentiment well with 1191 01:09:39,849 --> 01:09:36,020 me now is NASA associate administrator 1192 01:09:41,740 --> 01:09:39,859 for science Thomas sir Lucan doctors are 1193 01:09:42,910 --> 01:09:41,750 broken what was your reaction being in 1194 01:09:46,200 --> 01:09:42,920 that 1195 01:09:48,459 --> 01:09:46,210 I was just overwhelmed with just 1196 01:09:50,320 --> 01:09:48,469 understanding how professional this team 1197 01:09:52,240 --> 01:09:50,330 is you know like during the entire time 1198 01:09:54,310 --> 01:09:52,250 this was clearly emotional for everybody 1199 01:09:56,320 --> 01:09:54,320 the lucky peanuts were there but there 1200 01:09:58,750 --> 01:09:56,330 are a lot of Kleenex and there's a lot 1201 01:10:00,550 --> 01:09:58,760 of use of Kleenex but everybody was so 1202 01:10:02,500 --> 01:10:00,560 professional to the very end and I just 1203 01:10:04,959 --> 01:10:02,510 saw it happening you know it went so 1204 01:10:07,390 --> 01:10:04,969 fast you know somebody was shouting out 1205 01:10:10,120 --> 01:10:07,400 wow we're struggling with c-axis and oh 1206 01:10:12,040 --> 01:10:10,130 it's gone and I just saw that team 1207 01:10:13,899 --> 01:10:12,050 holding together till the very end just 1208 01:10:15,370 --> 01:10:13,909 really it's all about teamwork with this 1209 01:10:18,729 --> 01:10:15,380 mission and it showed in the last 1210 01:10:20,830 --> 01:10:18,739 seconds it truly did and your feelings 1211 01:10:23,560 --> 01:10:20,840 about this what sort of legacy do you 1212 01:10:25,899 --> 01:10:23,570 think this mission leaves you know I 1213 01:10:28,450 --> 01:10:25,909 really do think that rewrote not only 1214 01:10:30,760 --> 01:10:28,460 what we know about the other sources but 1215 01:10:33,580 --> 01:10:30,770 how we think as humans about ourselves 1216 01:10:36,820 --> 01:10:33,590 you know these worlds that had found we 1217 01:10:39,520 --> 01:10:36,830 never knew were there are changing how 1218 01:10:42,280 --> 01:10:39,530 we think about life itself and so for me 1219 01:10:44,439 --> 01:10:42,290 that's why it's truly a civilization 1220 01:10:47,500 --> 01:10:44,449 scale mission one that will stand out 1221 01:10:51,430 --> 01:10:47,510 among other missions anywhere and how 1222 01:10:54,790 --> 01:10:51,440 will it impact future ideas and future 1223 01:10:56,379 --> 01:10:54,800 missions as we plan new things you know 1224 01:10:59,260 --> 01:10:56,389 some of the hardest questions to answer 1225 01:11:01,890 --> 01:10:59,270 our questions like it's their life out 1226 01:11:04,149 --> 01:11:01,900 there and this mission really has 1227 01:11:05,950 --> 01:11:04,159 redefined that it will affect how we 1228 01:11:07,780 --> 01:11:05,960 think about that question so of course 1229 01:11:09,669 --> 01:11:07,790 we're tackling that at NASA with a 1230 01:11:11,379 --> 01:11:09,679 multitude of missions looking at Mars 1231 01:11:13,840 --> 01:11:11,389 trying to bring samples back but also 1232 01:11:16,600 --> 01:11:13,850 looking at Europe by looking at these 1233 01:11:19,060 --> 01:11:16,610 outer ocean worlds and finding these 1234 01:11:21,970 --> 01:11:19,070 worlds all over the universe our lower 1235 01:11:24,910 --> 01:11:21,980 our galaxy every you know there's 1236 01:11:27,609 --> 01:11:24,920 thousands of these exoplanets and you 1237 01:11:29,770 --> 01:11:27,619 know Saturn like Jupiter like and of 1238 01:11:31,330 --> 01:11:29,780 exoplanets that were discovering and 1239 01:11:35,590 --> 01:11:31,340 we're thinking about I didn't totally 1240 01:11:37,930 --> 01:11:35,600 new way and so the thought is people are 1241 01:11:41,379 --> 01:11:37,940 clamoring to go back will that be 1242 01:11:42,220 --> 01:11:41,389 difficult to do to be able to envision 1243 01:11:45,640 --> 01:11:42,230 another 1244 01:11:47,350 --> 01:11:45,650 mission to these places soon it's almost 1245 01:11:49,000 --> 01:11:47,360 very difficult right to do this because 1246 01:11:51,490 --> 01:11:49,010 these machines are so hard 1247 01:11:53,500 --> 01:11:51,500 don't monthly to go back and for example 1248 01:11:56,650 --> 01:11:53,510 take the next step on Enceladus we want 1249 01:11:58,600 --> 01:11:56,660 to really think what that will take now 1250 01:12:00,460 --> 01:11:58,610 there's great ideas already out there 1251 01:12:02,050 --> 01:12:00,470 and perhaps some of these ideas will 1252 01:12:04,090 --> 01:12:02,060 come to first and relatively early I 1253 01:12:06,010 --> 01:12:04,100 don't know but but you know and we'll 1254 01:12:08,020 --> 01:12:06,020 really start thinking about this and and 1255 01:12:10,300 --> 01:12:08,030 start talking about it in the science 1256 01:12:12,729 --> 01:12:10,310 community oh we're all going for courage 1257 01:12:15,910 --> 01:12:12,739 them to to really start you know making 1258 01:12:17,920 --> 01:12:15,920 plans so we can create a consensus as to 1259 01:12:20,020 --> 01:12:17,930 what direction we want to go and yes we 1260 01:12:22,030 --> 01:12:20,030 want to really go back this is such a 1261 01:12:24,490 --> 01:12:22,040 wonderful system we don't want to leave 1262 01:12:26,920 --> 01:12:24,500 it alone it's such a beautiful one and 1263 01:12:29,200 --> 01:12:26,930 it's affected so many people dr. Zhu 1264 01:12:31,060 --> 01:12:29,210 Bookman thank you so much for sharing 1265 01:12:32,770 --> 01:12:31,070 this moment with us a very special 1266 01:12:36,040 --> 01:12:32,780 thanks to the team 1267 01:12:39,040 --> 01:12:36,050 well the cassini-huygens team was a 1268 01:12:41,470 --> 01:12:39,050 multi international team and you know 1269 01:12:45,040 --> 01:12:41,480 just a few moments from now we will be 1270 01:12:52,100 --> 01:12:45,050 speaking to members of ISA and aussi 1271 01:14:53,800 --> 01:13:17,880 [Music] 1272 01:14:59,600 --> 01:14:56,900 as we told you earlier Cocina Huygens 1273 01:15:01,790 --> 01:14:59,610 was a multinational endeavor from the 1274 01:15:04,790 --> 01:15:01,800 very very start a partnership between 1275 01:15:08,330 --> 01:15:04,800 NASA the European Space Agency and the 1276 01:15:11,060 --> 01:15:08,340 Italian space agency this is an equally 1277 01:15:13,160 --> 01:15:11,070 proud moment for ISA and Ozzy and the 1278 01:15:15,380 --> 01:15:13,170 ISA director of science Alvaro Jimenez 1279 01:15:19,310 --> 01:15:15,390 joins us and the president of hace 1280 01:15:21,950 --> 01:15:19,320 Roberto Pakistan are here to share this 1281 01:15:24,950 --> 01:15:21,960 historic mount moment thank you so much 1282 01:15:26,720 --> 01:15:24,960 for coming I was this something that you 1283 01:15:27,200 --> 01:15:26,730 decided you wouldn't miss it for the 1284 01:15:30,440 --> 01:15:27,210 world 1285 01:15:32,990 --> 01:15:30,450 of course we couldn't miss it because we 1286 01:15:34,790 --> 01:15:33,000 knew this moment was gonna come it's a 1287 01:15:36,980 --> 01:15:34,800 little bit sad because we wanted to 1288 01:15:38,420 --> 01:15:36,990 delay it as much as possible and get as 1289 01:15:40,520 --> 01:15:38,430 much noise as possible 1290 01:15:44,120 --> 01:15:40,530 but we knew it was coming and that sense 1291 01:15:46,700 --> 01:15:44,130 is sad but it's also very nice to see 1292 01:15:50,090 --> 01:15:46,710 that we have opened the possibility for 1293 01:15:52,970 --> 01:15:50,100 the future science also and for the 1294 01:15:55,160 --> 01:15:52,980 scientists to work in on the data that 1295 01:15:58,580 --> 01:15:55,170 Cassini has collected but also as an 1296 01:16:01,880 --> 01:15:58,590 example and I think we have to build on 1297 01:16:04,550 --> 01:16:01,890 this cooperation between the US and 1298 01:16:06,650 --> 01:16:04,560 Europe in ambitious missions like this 1299 01:16:09,620 --> 01:16:06,660 we are very proud of having worked 1300 01:16:13,070 --> 01:16:09,630 together and we have to make sure that 1301 01:16:16,010 --> 01:16:13,080 we continue this way because together we 1302 01:16:19,730 --> 01:16:16,020 can do much better than Excel are and 1303 01:16:29,840 --> 01:16:19,740 Bertil your feelings I mean to be a part 1304 01:16:31,700 --> 01:16:29,850 of this I was not there 20 years ago and 1305 01:16:34,760 --> 01:16:31,710 this started but I know the story of all 1306 01:16:36,950 --> 01:16:34,770 my friends and colleagues and Cassini 1307 01:16:39,350 --> 01:16:36,960 demonstrated we can do that we can 1308 01:16:41,060 --> 01:16:39,360 create a condition for the international 1309 01:16:43,550 --> 01:16:41,070 collaboration omission which can operate 1310 01:16:45,680 --> 01:16:43,560 for 20 years which can learn in tremenda 1311 01:16:47,720 --> 01:16:45,690 mount of things for the future is one 1312 01:16:50,480 --> 01:16:47,730 step a gigantic step toward the future 1313 01:16:52,490 --> 01:16:50,490 in the radio vision hope this is not the 1314 01:16:55,580 --> 01:16:52,500 last one but is only the first one the 1315 01:16:58,469 --> 01:16:55,590 series were you surprised at how long 1316 01:17:01,199 --> 01:16:58,479 this mission has lasted and the 1317 01:17:04,979 --> 01:17:01,209 the amount of information and science 1318 01:17:07,560 --> 01:17:04,989 that it has brought back not not so much 1319 01:17:12,029 --> 01:17:07,570 about the length I think we all ramped 1320 01:17:16,290 --> 01:17:12,039 about it but their discoveries and what 1321 01:17:17,219 --> 01:17:16,300 we have found in the Saturn system are 1322 01:17:20,520 --> 01:17:17,229 simply amazing 1323 01:17:23,549 --> 01:17:20,530 we were surprised by that and ESA's roll 1324 01:17:27,060 --> 01:17:23,559 with Huygens and and working on Titan I 1325 01:17:30,810 --> 01:17:27,070 mean what was the high points for you 1326 01:17:33,899 --> 01:17:30,820 well for me Huygens was getting to Titan 1327 01:17:35,729 --> 01:17:33,909 we landed there in 2005 but the whole 1328 01:17:39,330 --> 01:17:35,739 purpose was to understand the atmosphere 1329 01:17:41,640 --> 01:17:39,340 of Titan to analyze the atmosphere which 1330 01:17:43,859 --> 01:17:41,650 is a pro biotic atmosphere full of 1331 01:17:46,709 --> 01:17:43,869 nitrogen and methane and these kind of 1332 01:17:50,219 --> 01:17:46,719 elements which is what we thought that 1333 01:17:52,919 --> 01:17:50,229 this body is outside the outer part of 1334 01:17:56,339 --> 01:17:52,929 the solar system where be full life 1335 01:17:58,890 --> 01:17:56,349 could appear and and we want to analyze 1336 01:18:02,459 --> 01:17:58,900 that but then we found that we could 1337 01:18:04,259 --> 01:18:02,469 even land we when the mission was design 1338 01:18:06,330 --> 01:18:04,269 it we thought we didn't know how the 1339 01:18:10,850 --> 01:18:06,340 surface was we didn't know if it was 1340 01:18:14,310 --> 01:18:10,860 going to sink it was alive for some time 1341 01:18:16,799 --> 01:18:14,320 and and that was amazing because also we 1342 01:18:20,459 --> 01:18:16,809 could see first this was the farthest 1343 01:18:25,229 --> 01:18:20,469 away landing ever of a human-made probe 1344 01:18:29,939 --> 01:18:25,239 but also we found a landscape totally 1345 01:18:32,939 --> 01:18:29,949 unexpected of Titan something similar to 1346 01:18:37,319 --> 01:18:32,949 earth actually airy with lakes and 1347 01:18:39,719 --> 01:18:37,329 rivers and mountains and very but with a 1348 01:18:42,629 --> 01:18:39,729 totally different chemical composition a 1349 01:18:45,689 --> 01:18:42,639 totally different world and with the 1350 01:18:52,140 --> 01:18:45,699 cycles of methane rather than water but 1351 01:18:55,589 --> 01:18:52,150 it is so interesting is so very very 1352 01:18:59,939 --> 01:18:55,599 familiar and Roberto let's talk about 1353 01:19:03,089 --> 01:18:59,949 Ozzy's role and the high-gain antenna so 1354 01:19:05,399 --> 01:19:03,099 often the project relied on the 1355 01:19:06,989 --> 01:19:05,409 high-gain antenna as protection for the 1356 01:19:09,600 --> 01:19:06,999 rest of the spacecraft was that 1357 01:19:12,640 --> 01:19:09,610 something that 1358 01:19:16,450 --> 01:19:12,650 planned and you thought this is a way to 1359 01:19:18,160 --> 01:19:16,460 use the antenna is amazing it's probably 1360 01:19:20,979 --> 01:19:18,170 the most sophisticated antenna ever 1361 01:19:22,840 --> 01:19:20,989 built for a space mission receiving and 1362 01:19:24,700 --> 01:19:22,850 transmitting of four different band at 1363 01:19:27,430 --> 01:19:24,710 the same time operated for 20 years 1364 01:19:29,169 --> 01:19:27,440 almost continuously so that was the core 1365 01:19:32,020 --> 01:19:29,179 of it but indeed you are right that was 1366 01:19:34,270 --> 01:19:32,030 designed to be as a passive thermal 1367 01:19:39,840 --> 01:19:34,280 protection system going to Venice this 1368 01:19:43,930 --> 01:19:39,850 was shielding the satellite from the 1369 01:19:46,150 --> 01:19:43,940 radiation and getting into the Saturn 1370 01:19:49,060 --> 01:19:46,160 environment it was shooting again the 1371 01:19:51,430 --> 01:19:49,070 micrometer it basically measuring by the 1372 01:19:53,020 --> 01:19:51,440 vibration on the antenna itself the 1373 01:19:55,750 --> 01:19:53,030 amount of micrometer et which was 1374 01:19:59,620 --> 01:19:55,760 hitting and to use that as a protection 1375 01:20:02,729 --> 01:19:59,630 when entering in certain location like 1376 01:20:06,640 --> 01:20:02,739 the space in between the Angeles and 1377 01:20:09,340 --> 01:20:06,650 Saturn planet which was unknown totally 1378 01:20:12,010 --> 01:20:09,350 unknown and I think this is amazing such 1379 01:20:14,560 --> 01:20:12,020 a sophisticated instrument to be used as 1380 01:20:18,580 --> 01:20:14,570 the thermal shield or as a micro metal 1381 01:20:22,419 --> 01:20:18,590 shield indeed Cassini was such a well 1382 01:20:25,990 --> 01:20:22,429 made machine and served so well I think 1383 01:20:28,540 --> 01:20:26,000 in its entire flight it was it had only 1384 01:20:30,970 --> 01:20:28,550 saved I think three times and and that 1385 01:20:34,510 --> 01:20:30,980 was all but could not have done it 1386 01:20:36,430 --> 01:20:34,520 without both Ossie and ISA and we are so 1387 01:20:39,370 --> 01:20:36,440 pleased that you're here and joining us 1388 01:20:45,310 --> 01:20:39,380 the kind of stories about space missions 1389 01:20:48,100 --> 01:20:45,320 we should should be told because design 1390 01:20:50,620 --> 01:20:48,110 without trouble is a tremendous giant 1391 01:20:52,689 --> 01:20:50,630 bones and should be known right well 1392 01:20:55,360 --> 01:20:52,699 thank you again for coming out and being 1393 01:21:01,600 --> 01:20:55,370 with us on this very very special day 1394 01:23:23,600 --> 01:21:23,010 [Music] 1395 01:23:26,000 --> 01:23:23,610 and that video you just saw was called 1396 01:23:29,630 --> 01:23:26,010 Cassini inspires it was made up of 1397 01:23:32,209 --> 01:23:29,640 images that the public you sent in using 1398 01:23:35,360 --> 01:23:32,219 some of Cassini's raw images as well as 1399 01:23:37,700 --> 01:23:35,370 your own artwork thank you so much well 1400 01:23:40,490 --> 01:23:37,710 that wraps it up from here a bittersweet 1401 01:23:43,370 --> 01:23:40,500 day for the Cassini team but we can't 1402 01:23:45,370 --> 01:23:43,380 help but feel proud of the fantastic 1403 01:23:49,790 --> 01:23:45,380 people that made these accomplishments 1404 01:23:52,910 --> 01:23:49,800 possible these last 20 years and about 1405 01:23:55,760 --> 01:23:52,920 an hour from now at 6:30 a.m. Pacific 1406 01:23:58,280 --> 01:23:55,770 9:30 a.m. Eastern there will be a news 1407 01:24:00,830 --> 01:23:58,290 briefing on Cassini's grand finale it 1408 01:24:03,560 --> 01:24:00,840 will be live on NASA TV and also 1409 01:24:06,020 --> 01:24:03,570 streamed and for more information about 1410 01:24:08,990 --> 01:24:06,030 the mission you can check out the URLs 1411 01:24:12,050 --> 01:24:09,000 you see on the screen and a little bit 1412 01:24:14,900 --> 01:24:12,060 earlier Jim Green told you about the 1413 01:24:16,780 --> 01:24:14,910 ebooks some of the most memorable gifts 1414 01:24:19,729 --> 01:24:16,790 from Cassini are those spectacular 1415 01:24:22,820 --> 01:24:19,739 images an e-book of these stunning 1416 01:24:25,640 --> 01:24:22,830 images has been made and you can find it 1417 01:24:28,970 --> 01:24:25,650 by going to that link you see on the 1418 01:24:33,290 --> 01:24:28,980 screen well finally before we go a 1419 01:24:37,160 --> 01:24:33,300 parting look at the DSN now image the 1420 01:24:40,660 --> 01:24:37,170 display you see there a 10 antenna 43 1421 01:24:43,220 --> 01:24:40,670 that's the one in Australia is now dark 1422 01:24:46,760 --> 01:24:43,230 communication with a spacecraft is now 1423 01:24:50,240 --> 01:24:46,770 silent Cassini is no more but what a 1424 01:25:52,470 --> 01:24:50,250 legacy it leaves behind thanks for