1 00:00:02,100 --> 00:00:36,830 [Music] 2 00:00:41,590 --> 00:00:39,950 uh so I'm going to talk about uh results 3 00:00:45,709 --> 00:00:41,600 and developments we have with two 4 00:00:48,990 --> 00:00:45,719 projects that relate to searching for et 5 00:00:54,150 --> 00:00:49,000 and uh extraterrestrial 6 00:00:56,470 --> 00:00:54,160 probes let us start first uh with a um 7 00:00:59,709 --> 00:00:56,480 mind experiment imagine 8 00:01:03,389 --> 00:00:59,719 if instead of searching uh or instead of 9 00:01:06,630 --> 00:01:03,399 w waiting and waiting for a UFO to hover 10 00:01:08,749 --> 00:01:06,640 over your head you could actually use 11 00:01:11,510 --> 00:01:08,759 some kind of technique to search for 12 00:01:14,230 --> 00:01:11,520 unidentified objects that are non-human 13 00:01:15,870 --> 00:01:14,240 and not only to do not only to do uh 14 00:01:18,469 --> 00:01:15,880 these searches but also in case you 15 00:01:21,069 --> 00:01:18,479 detect it directly get a spectrum in 16 00:01:23,190 --> 00:01:21,079 real time that would characterize it 17 00:01:25,749 --> 00:01:23,200 directly localize it in 3D so that you 18 00:01:27,510 --> 00:01:25,759 know where it is and directly validate 19 00:01:30,149 --> 00:01:27,520 it with multiple instruments so that you 20 00:01:31,990 --> 00:01:30,159 know that nothing here is wrong and 21 00:01:34,310 --> 00:01:32,000 imagine now that you could also do that 22 00:01:36,749 --> 00:01:34,320 and get rid of all human objects let's 23 00:01:38,710 --> 00:01:36,759 say satellit space debris and you know 24 00:01:41,030 --> 00:01:38,720 that that's not 25 00:01:44,789 --> 00:01:41,040 human I would be quite interested in 26 00:01:50,350 --> 00:01:47,830 experiment and I'm going to talk about a 27 00:01:53,510 --> 00:01:50,360 potential way how I can do that more or 28 00:01:55,350 --> 00:01:53,520 less uh in the second half of my talk 29 00:01:58,350 --> 00:01:55,360 when we are when we are planning to 30 00:02:00,630 --> 00:01:58,360 build a Global Network that permits us 31 00:02:03,630 --> 00:02:00,640 to um with help help of Widefield 32 00:02:07,550 --> 00:02:03,640 telescopes and high-speed cameras catch 33 00:02:09,910 --> 00:02:07,560 short flashes of light associated with u 34 00:02:13,190 --> 00:02:09,920 nonhuman objects either like Fast 35 00:02:14,990 --> 00:02:13,200 Reflections or short laser pulses or 36 00:02:17,270 --> 00:02:15,000 other kind of 37 00:02:19,229 --> 00:02:17,280 emissions and the point of all this is 38 00:02:21,550 --> 00:02:19,239 that you want to really minimize the 39 00:02:22,990 --> 00:02:21,560 number of false positives because uh 40 00:02:24,430 --> 00:02:23,000 scientists are sometimes a little lazy 41 00:02:26,470 --> 00:02:24,440 and you don't want to go through too 42 00:02:30,070 --> 00:02:26,480 much 43 00:02:31,750 --> 00:02:30,080 data and um you can find a paper in the 44 00:02:33,390 --> 00:02:31,760 the brief where we describ the beginning 45 00:02:36,070 --> 00:02:33,400 of this project from in 46 00:02:38,070 --> 00:02:36,080 February where the goal is to detect 47 00:02:40,430 --> 00:02:38,080 localize verify and reproduce any 48 00:02:42,670 --> 00:02:40,440 finding in real time because once you 49 00:02:43,830 --> 00:02:42,680 see such a short flash you don't know 50 00:02:46,509 --> 00:02:43,840 when you're going to see it again and 51 00:02:48,390 --> 00:02:46,519 especially if you see multiple of them 52 00:02:51,990 --> 00:02:48,400 now you don't you might have to wait 53 00:02:54,070 --> 00:02:52,000 years until you find it and uh we're our 54 00:02:56,670 --> 00:02:54,080 goal is not to find the thing that can't 55 00:02:59,070 --> 00:02:56,680 be identified a goal is to search for a 56 00:03:02,430 --> 00:02:59,080 specific identifiable signature from an 57 00:03:05,470 --> 00:03:02,440 ET probe or non-human object or UFO or 58 00:03:07,350 --> 00:03:05,480 whatever you want to call it and which 59 00:03:10,869 --> 00:03:07,360 means that we are narrowing it down 60 00:03:13,470 --> 00:03:10,879 quite a lot um to a specific hyp 61 00:03:15,390 --> 00:03:13,480 hypothesis a such range is going to be 62 00:03:18,509 --> 00:03:15,400 up to 150 million kilometers from the 63 00:03:20,149 --> 00:03:18,519 earth and uh again this instant 64 00:03:22,350 --> 00:03:20,159 validation and instant Spectra and 65 00:03:25,430 --> 00:03:22,360 instant localization is going to be the 66 00:03:27,509 --> 00:03:25,440 most important bit and in this way we 67 00:03:29,350 --> 00:03:27,519 will get spatial resolution a Time 68 00:03:32,750 --> 00:03:29,360 resolution and a spectral resolution of 69 00:03:33,990 --> 00:03:32,760 any SC however before I'm going to tell 70 00:03:36,309 --> 00:03:34,000 you about the project I'm going to tell 71 00:03:42,789 --> 00:03:36,319 you about the history of why we want to 72 00:03:49,390 --> 00:03:46,350 way let's first think about the 73 00:03:52,270 --> 00:03:49,400 possibilities of life in the Milky 74 00:03:54,030 --> 00:03:52,280 Way so many people are going to say oh 75 00:03:56,030 --> 00:03:54,040 but we we don't know if there is any 76 00:03:58,589 --> 00:03:56,040 other planet except for the Earth that 77 00:04:00,990 --> 00:03:58,599 has life but come on let's think about 78 00:04:03,069 --> 00:04:01,000 the numbers just in the Milky Way you 79 00:04:06,750 --> 00:04:03,079 have something like 200 to 300 billions 80 00:04:09,550 --> 00:04:06,760 of stars you know that 22% of every 81 00:04:13,069 --> 00:04:09,560 sunlike Star has an earth within the 82 00:04:15,710 --> 00:04:13,079 habitable zone now that is quite a lot 83 00:04:18,590 --> 00:04:15,720 and if you count on that you have about 84 00:04:20,670 --> 00:04:18,600 40 billions of earthlike planets just in 85 00:04:21,950 --> 00:04:20,680 the Milky Way where there might be 86 00:04:25,189 --> 00:04:21,960 plenty of 87 00:04:26,950 --> 00:04:25,199 Life they have also found amino acids on 88 00:04:30,430 --> 00:04:26,960 asteroids and meteorites and it will be 89 00:04:32,629 --> 00:04:30,440 so exciting to see what the Osiris Rex 90 00:04:35,070 --> 00:04:32,639 uh samples are going to actually tell us 91 00:04:36,790 --> 00:04:35,080 when they become analyzed that's a 92 00:04:42,670 --> 00:04:36,800 fantastic project where they brought 93 00:04:48,990 --> 00:04:46,950 September so many of uh us are aware of 94 00:04:50,830 --> 00:04:49,000 the first search how the first searches 95 00:04:53,270 --> 00:04:50,840 for extra Trestle have been done the 96 00:04:56,029 --> 00:04:53,280 first generation searches of sa which 97 00:04:58,230 --> 00:04:56,039 has been the radio CTI uh many people 98 00:05:00,189 --> 00:04:58,240 associate CTI with an Institute but CTI 99 00:05:02,189 --> 00:05:00,199 is actually a field of research 100 00:05:03,950 --> 00:05:02,199 and where people have mostly been 101 00:05:06,749 --> 00:05:03,960 dedicated to these searches for their 102 00:05:08,950 --> 00:05:06,759 artificial radio signals one has been 103 00:05:10,710 --> 00:05:08,960 using the green Bank telescopes and one 104 00:05:12,670 --> 00:05:10,720 has searched H one is also using the 105 00:05:14,510 --> 00:05:12,680 Allen telescope array and one is doing 106 00:05:17,469 --> 00:05:14,520 that since the 1960s because this was 107 00:05:19,830 --> 00:05:17,479 the easiest way to look for 108 00:05:22,110 --> 00:05:19,840 et and I don't know how many of you are 109 00:05:25,430 --> 00:05:22,120 familiar with a movie contact where you 110 00:05:27,749 --> 00:05:25,440 have uh Dr Ellie arway searching for uh 111 00:05:30,830 --> 00:05:27,759 radio signals and she searches and she 112 00:05:34,110 --> 00:05:30,840 searches and finally she finds them and 113 00:05:37,510 --> 00:05:34,120 that's kind of uh what the movie is 114 00:05:43,150 --> 00:05:37,520 about I'm sad to say that in real 115 00:05:49,670 --> 00:05:46,430 searching so uh one has also done very 116 00:05:52,749 --> 00:05:49,680 beautiful uh searches for 117 00:05:54,590 --> 00:05:52,759 lasers and this is this is done in much 118 00:05:57,309 --> 00:05:54,600 smaller extent because this is 119 00:05:59,110 --> 00:05:57,319 relatively new because the time as tech 120 00:06:00,950 --> 00:05:59,120 technology develops you can do more and 121 00:06:03,710 --> 00:06:00,960 more things things and this has been 122 00:06:06,710 --> 00:06:03,720 done in the last years and thousands of 123 00:06:09,390 --> 00:06:06,720 stars have been surveyed not 300,000 but 124 00:06:13,150 --> 00:06:09,400 thousands and so far there's there is an 125 00:06:15,070 --> 00:06:13,160 optical desert no lasers have been found 126 00:06:18,029 --> 00:06:15,080 so far that should start getting us a 127 00:06:23,510 --> 00:06:21,070 right I engage personally also in 128 00:06:25,430 --> 00:06:23,520 searches so I was leading up or I'm 129 00:06:27,150 --> 00:06:25,440 leading a project called The Vanishing 130 00:06:29,510 --> 00:06:27,160 and appearing sources during a century 131 00:06:32,270 --> 00:06:29,520 of observation project where I wanted to 132 00:06:34,670 --> 00:06:32,280 find a star that vanishes imagine a star 133 00:06:36,550 --> 00:06:34,680 that is there in multiple images and you 134 00:06:38,110 --> 00:06:36,560 see it and you really know it's there 135 00:06:39,670 --> 00:06:38,120 and then one day it vanishes that would 136 00:06:42,749 --> 00:06:39,680 be a beautiful techn signature of some 137 00:06:45,710 --> 00:06:42,759 completely new physics and since 138 00:06:47,309 --> 00:06:45,720 2016 uh I worked with my team of about 139 00:06:51,150 --> 00:06:47,319 40 people with machine learning 140 00:06:53,710 --> 00:06:51,160 scientist and um astronomers and we 141 00:06:57,270 --> 00:06:53,720 searched for these Stars by comparing 142 00:07:00,189 --> 00:06:57,280 images from the 1950s to images to today 143 00:07:01,749 --> 00:07:00,199 we didn't find us us a star that really 144 00:07:04,469 --> 00:07:01,759 was there and vanish but we found a lot 145 00:07:06,070 --> 00:07:04,479 of weird weird trans we come back to 146 00:07:07,790 --> 00:07:06,080 that now there is something very 147 00:07:11,629 --> 00:07:07,800 beautiful about these place that we were 148 00:07:15,070 --> 00:07:11,639 using we were using photographic plates 149 00:07:18,749 --> 00:07:15,080 that were done in 1950 in early 150 00:07:20,150 --> 00:07:18,759 1950s for those of you who know uh uh 151 00:07:21,869 --> 00:07:20,160 how these photographic plates Works 152 00:07:24,390 --> 00:07:21,879 they're usually quite big Des serve a 153 00:07:27,550 --> 00:07:24,400 big part of the sky and there were very 154 00:07:30,270 --> 00:07:27,560 fine uh uh studies done at Mount Palomar 155 00:07:33,309 --> 00:07:30,280 for example in Le Observatory the 156 00:07:36,790 --> 00:07:33,319 can and one great advantage of these 157 00:07:38,790 --> 00:07:36,800 plays is that there were no satellites 158 00:07:40,950 --> 00:07:38,800 we humans have not yet contaminated the 159 00:07:42,790 --> 00:07:40,960 sky and airplanes are so easy to 160 00:07:45,510 --> 00:07:42,800 distinguish because you just get a 161 00:07:47,869 --> 00:07:45,520 streak so they are excellent for 162 00:07:49,390 --> 00:07:47,879 searching for et but you go back in time 163 00:07:54,350 --> 00:07:49,400 it's like a time machine to when your 164 00:07:56,189 --> 00:07:54,360 sky was uh before Elon Musk and 165 00:07:58,390 --> 00:07:56,199 similars 166 00:07:59,830 --> 00:07:58,400 so we were actually searching for these 167 00:08:02,510 --> 00:07:59,840 Vanishing stars but comparing these 168 00:08:06,710 --> 00:08:02,520 images from 50s and with images from 169 00:08:09,270 --> 00:08:06,720 like more or less today and uh we we 170 00:08:11,230 --> 00:08:09,280 analyzed terabytes of image data 171 00:08:12,670 --> 00:08:11,240 automatically and through a citizen 172 00:08:14,670 --> 00:08:12,680 science project that unfortunately I 173 00:08:16,110 --> 00:08:14,680 cannot show show the animation of 174 00:08:19,990 --> 00:08:16,120 because I have some technical issues 175 00:08:22,510 --> 00:08:20,000 here but it was really a big work where 176 00:08:27,149 --> 00:08:22,520 we look through uh many objects like one 177 00:08:29,629 --> 00:08:27,159 by one and we found many short flashes 178 00:08:31,390 --> 00:08:29,639 that appear on one image and they don't 179 00:08:33,149 --> 00:08:31,400 appear again they were appearing very 180 00:08:35,509 --> 00:08:33,159 shortly briefly on these photographic 181 00:08:38,230 --> 00:08:35,519 place and then just vanish something 182 00:08:40,350 --> 00:08:38,240 that vanishes at time scales less than 183 00:08:43,829 --> 00:08:40,360 50 184 00:08:46,230 --> 00:08:43,839 minutes so that was quite interesting 185 00:08:48,430 --> 00:08:46,240 but not as interesting as when we found 186 00:08:50,470 --> 00:08:48,440 nine of them in a small region of the 187 00:08:52,070 --> 00:08:50,480 space that appear and vanish within 50 188 00:08:55,310 --> 00:08:52,080 minutes because then we say as 189 00:08:58,990 --> 00:08:55,320 astronomers oh what on Earth is that the 190 00:09:01,230 --> 00:08:59,000 paper caused a lot of uh um astronomers 191 00:09:03,150 --> 00:09:01,240 get getting stressed over social media 192 00:09:05,470 --> 00:09:03,160 saying that they should not be citing 193 00:09:06,949 --> 00:09:05,480 the paper because of some sociological 194 00:09:09,949 --> 00:09:06,959 issues actually the same people who are 195 00:09:14,550 --> 00:09:09,959 usually are going for AI also went for 196 00:09:16,550 --> 00:09:14,560 me astronomers are bored sometimes and 197 00:09:19,110 --> 00:09:16,560 what happened here is that we see these 198 00:09:21,389 --> 00:09:19,120 images you see the green circles you 199 00:09:23,750 --> 00:09:21,399 have uh ignore the the purple circles 200 00:09:26,069 --> 00:09:23,760 that are scanning defects that we could 201 00:09:28,269 --> 00:09:26,079 distinguish by comparing different scans 202 00:09:29,630 --> 00:09:28,279 but what you see is that on the 12th of 203 00:09:32,389 --> 00:09:29,640 April 204 00:09:34,630 --> 00:09:32,399 you have nine stars that are there in 205 00:09:36,630 --> 00:09:34,640 one image or transients as I'm going to 206 00:09:38,310 --> 00:09:36,640 say for these short flashes they are 207 00:09:40,870 --> 00:09:38,320 there in one image and they're not there 208 00:09:42,949 --> 00:09:40,880 later and they were not there half an 209 00:09:45,630 --> 00:09:42,959 hour earlier they were not there 6 days 210 00:09:47,710 --> 00:09:45,640 later and they never appeared again and 211 00:09:49,829 --> 00:09:47,720 we like used the big Grand telescop of 212 00:09:52,509 --> 00:09:49,839 canaras and we searched for them with a 213 00:09:55,389 --> 00:09:52,519 Deep Imaging and we found 214 00:09:57,509 --> 00:09:55,399 nothing so we started thinking about all 215 00:09:59,630 --> 00:09:57,519 possible courses astrophysical courses 216 00:10:02,150 --> 00:09:59,640 and we couldn't explain it in any 217 00:10:04,110 --> 00:10:02,160 astrophysical way there is simply 218 00:10:05,630 --> 00:10:04,120 they're so spread over the sky and at 219 00:10:07,630 --> 00:10:05,640 the same time they have these very 220 00:10:10,630 --> 00:10:07,640 typical brightness profiles that come 221 00:10:12,750 --> 00:10:10,640 with real stars so no we couldn't 222 00:10:16,030 --> 00:10:12,760 explain that in any 223 00:10:17,509 --> 00:10:16,040 way now instrumental issues uh we could 224 00:10:19,590 --> 00:10:17,519 exclude a lot of the most common 225 00:10:21,430 --> 00:10:19,600 instrumental issues uh and then some 226 00:10:23,790 --> 00:10:21,440 were turned out to be very unlikely and 227 00:10:26,030 --> 00:10:23,800 of course some of U people think that 228 00:10:27,910 --> 00:10:26,040 maybe you have some kind of plate 229 00:10:29,590 --> 00:10:27,920 defects it's just that these plate 230 00:10:31,590 --> 00:10:29,600 defects in such case 231 00:10:34,230 --> 00:10:31,600 would have to be first by chance each 232 00:10:36,269 --> 00:10:34,240 one of them would have to be looking 233 00:10:38,110 --> 00:10:36,279 exactly like the stars and imitate the 234 00:10:39,509 --> 00:10:38,120 brightness profiles of the real stars 235 00:10:42,030 --> 00:10:39,519 and also on top of that you would need 236 00:10:44,509 --> 00:10:42,040 to have nine of them all coincidentally 237 00:10:49,710 --> 00:10:44,519 star-like and not a mix of various 238 00:10:52,430 --> 00:10:49,720 shapes so it didn't look far too likely 239 00:10:55,990 --> 00:10:52,440 of course this was in uh they started in 240 00:10:58,590 --> 00:10:56,000 2020 because we found a example in March 241 00:11:02,310 --> 00:10:58,600 uh 2020 right when the pandemic started 242 00:11:03,750 --> 00:11:02,320 and in 2021 when we had our referee uh 243 00:11:06,069 --> 00:11:03,760 he he or she 244 00:11:08,110 --> 00:11:06,079 asked how how do you know that it's not 245 00:11:10,829 --> 00:11:08,120 just somebody who sneezed on the 246 00:11:12,470 --> 00:11:10,839 plates and we could again we had to look 247 00:11:16,550 --> 00:11:12,480 at the images look at the size and we 248 00:11:20,190 --> 00:11:16,560 could show nobody sneezed on the 249 00:11:23,590 --> 00:11:20,200 plates we still had one more idea and 250 00:11:25,110 --> 00:11:23,600 that is that um possibly some 251 00:11:28,150 --> 00:11:25,120 photographic plates especially like 252 00:11:31,710 --> 00:11:28,160 x-ray images were sensitive to nuclear 253 00:11:33,750 --> 00:11:31,720 fallout from at bomb tests and that is 254 00:11:35,750 --> 00:11:33,760 and they could produce some kind of fog 255 00:11:39,069 --> 00:11:35,760 Stars maybe not exactly the same 256 00:11:40,629 --> 00:11:39,079 profiles and we we thought that this 257 00:11:43,069 --> 00:11:40,639 might have been an explanation so we 258 00:11:46,030 --> 00:11:43,079 checked with a uh official atomic bomb 259 00:11:48,870 --> 00:11:46,040 test in United States Unfortunately they 260 00:11:52,389 --> 00:11:48,880 were none that year and since I'm not a 261 00:11:55,990 --> 00:11:52,399 conspiracy theorist I went on 262 00:11:57,990 --> 00:11:56,000 further so um there is something that 263 00:12:01,069 --> 00:11:58,000 can actually produce these nine uh 264 00:12:02,670 --> 00:12:01,079 objects that we see and later don't see 265 00:12:05,629 --> 00:12:02,680 and that is if you would have either 266 00:12:07,190 --> 00:12:05,639 some emissions from something let's say 267 00:12:08,910 --> 00:12:07,200 a non-human object in the sky or 268 00:12:11,069 --> 00:12:08,920 Reflections solar 269 00:12:15,189 --> 00:12:11,079 Reflections and 270 00:12:18,110 --> 00:12:15,199 uh well we know it's 1950 so there were 271 00:12:22,910 --> 00:12:18,120 no human objects there but this is a 272 00:12:24,990 --> 00:12:22,920 possibility and um we wrote about it and 273 00:12:26,949 --> 00:12:25,000 this started triggering my imagination 274 00:12:28,350 --> 00:12:26,959 because I of course want to know if 275 00:12:29,949 --> 00:12:28,360 there are more ways how one can test 276 00:12:32,110 --> 00:12:29,959 this possibility 277 00:12:34,990 --> 00:12:32,120 um this was the only thing we could come 278 00:12:37,110 --> 00:12:35,000 up with that actually worked um for the 279 00:12:38,590 --> 00:12:37,120 paper of course we couldn't write it 280 00:12:40,509 --> 00:12:38,600 that way one has to always write it very 281 00:12:43,350 --> 00:12:40,519 very conservatively if you want it 282 00:12:46,310 --> 00:12:43,360 published so I started thinking about 283 00:12:48,189 --> 00:12:46,320 what are the other ways of like 284 00:12:50,310 --> 00:12:48,199 predicting the signatures of these ET 285 00:12:51,910 --> 00:12:50,320 probes well multiple transients is one 286 00:12:54,069 --> 00:12:51,920 of them then you can have triple 287 00:12:56,389 --> 00:12:54,079 transients if you have a rotating dish I 288 00:13:00,030 --> 00:12:56,399 learned but also you can have transin 289 00:13:01,550 --> 00:13:00,040 along a line they don't have to be uh 290 00:13:04,150 --> 00:13:01,560 equally spaced they can have different 291 00:13:05,790 --> 00:13:04,160 kind of spacing and Depends all on the 292 00:13:08,269 --> 00:13:05,800 complexity of the geometry of this 293 00:13:10,990 --> 00:13:08,279 glinting objects but once you have these 294 00:13:13,470 --> 00:13:11,000 uh very flat and reflective 295 00:13:15,389 --> 00:13:13,480 surfaces you can simply have them along 296 00:13:17,030 --> 00:13:15,399 a line so we sent this to act 297 00:13:18,829 --> 00:13:17,040 astronautica we had two or three 298 00:13:22,550 --> 00:13:18,839 referees they were very happy with the 299 00:13:26,110 --> 00:13:22,560 hypothesis test perfect accepted and now 300 00:13:28,269 --> 00:13:26,120 I thought let's just carry it out so um 301 00:13:30,430 --> 00:13:28,279 this is just we we learned of course 302 00:13:32,110 --> 00:13:30,440 also I will just add as a parenthesis 303 00:13:35,069 --> 00:13:32,120 that if you have at least four of them 304 00:13:38,310 --> 00:13:35,079 then it becomes a very good signature of 305 00:13:42,430 --> 00:13:38,320 um that you have transients falling on a 306 00:13:44,350 --> 00:13:42,440 line uh associated with um um movement 307 00:13:47,230 --> 00:13:44,360 in the sky and in that way you can also 308 00:13:50,110 --> 00:13:47,240 even Clearly say that these are no plate 309 00:13:52,590 --> 00:13:50,120 defects as many people or some people I 310 00:13:55,949 --> 00:13:52,600 will say are going to say is a risk it 311 00:13:58,269 --> 00:13:55,959 is so did we find something well we 312 00:14:00,189 --> 00:13:58,279 actually did find some examples of these 313 00:14:02,710 --> 00:14:00,199 things and I'm going to show you the top 314 00:14:06,350 --> 00:14:02,720 two candidates we put them on archive 315 00:14:09,990 --> 00:14:06,360 last year one is from the 6th of August 316 00:14:17,069 --> 00:14:13,910 probability also and another the best 317 00:14:20,710 --> 00:14:17,079 example is from the 28th of July 318 00:14:22,910 --> 00:14:20,720 1952 um we will come back to this and 319 00:14:24,430 --> 00:14:22,920 you see here also this five things that 320 00:14:27,470 --> 00:14:24,440 are there and they just suddenly vanish 321 00:14:30,310 --> 00:14:27,480 so it's kind of becomes very fun now 322 00:14:34,030 --> 00:14:30,320 this paper I sent again to the journals 323 00:14:37,509 --> 00:14:34,040 and once you write that there is um some 324 00:14:41,470 --> 00:14:37,519 kind of uh if once you get a positive 325 00:14:43,509 --> 00:14:41,480 results the journals get nervous so it 326 00:14:45,389 --> 00:14:43,519 doesn't even go to review it doesn't 327 00:14:47,829 --> 00:14:45,399 matter that we carried out exactly the 328 00:14:49,910 --> 00:14:47,839 same hypothesis test that we already had 329 00:14:52,269 --> 00:14:49,920 published and we didn't deviate in any 330 00:14:54,509 --> 00:14:52,279 way from from the published plan this 331 00:14:57,110 --> 00:14:54,519 this paper has a like real issue even 332 00:15:00,230 --> 00:14:57,120 just getting to the review uh 333 00:15:02,350 --> 00:15:00,240 process so what are the implications 334 00:15:05,030 --> 00:15:02,360 well what I Tred to convey is that there 335 00:15:06,829 --> 00:15:05,040 is something some very unexplainable 336 00:15:08,269 --> 00:15:06,839 flashes that come in multiples in the 337 00:15:11,590 --> 00:15:08,279 old photographic plates that shouldn't 338 00:15:14,470 --> 00:15:11,600 be there and these are imp plates taken 339 00:15:16,470 --> 00:15:14,480 before 1957 a possibility that we see 340 00:15:18,189 --> 00:15:16,480 something artificial further out a 341 00:15:19,590 --> 00:15:18,199 possibility is that there is of course 342 00:15:22,990 --> 00:15:19,600 still something wrong with the plates 343 00:15:25,389 --> 00:15:23,000 but I think there's a lot of coincidence 344 00:15:27,590 --> 00:15:25,399 coinciden that us have to line up for 345 00:15:30,829 --> 00:15:27,600 such plate defects 346 00:15:33,350 --> 00:15:30,839 to both appear in multiples and always 347 00:15:36,389 --> 00:15:33,360 perfectly uh imitating the stars and at 348 00:15:40,030 --> 00:15:36,399 the same time being aligned in some 349 00:15:43,350 --> 00:15:40,040 cases and of course if it turns out um 350 00:15:45,749 --> 00:15:43,360 we actually estimated the surface number 351 00:15:48,629 --> 00:15:45,759 density uh of these objects you can 352 00:15:50,309 --> 00:15:48,639 always go to the archive paper now 353 00:15:51,430 --> 00:15:50,319 there's something more fun we have a new 354 00:15:55,150 --> 00:15:51,440 paper 355 00:15:58,590 --> 00:15:55,160 out and this makes it even harder for 356 00:16:00,550 --> 00:15:58,600 the so-called plate defect hypothesis 357 00:16:03,189 --> 00:16:00,560 because suddenly we have three very very 358 00:16:06,470 --> 00:16:03,199 bright stars that you can see there that 359 00:16:08,990 --> 00:16:06,480 are beautiful uh two overlaying and one 360 00:16:10,030 --> 00:16:09,000 here that are seen there on the 19th of 361 00:16:12,509 --> 00:16:10,040 July 362 00:16:14,670 --> 00:16:12,519 1952 and you look later and we actually 363 00:16:17,670 --> 00:16:14,680 looked both half an hour earlier and one 364 00:16:20,230 --> 00:16:17,680 month later and all this image we had 365 00:16:21,870 --> 00:16:20,240 and they weren't there now uh my 366 00:16:23,749 --> 00:16:21,880 colleagues were trying to see can we 367 00:16:27,389 --> 00:16:23,759 explain this in some ways in terms of 368 00:16:29,790 --> 00:16:27,399 gravitational lensing and they could 369 00:16:31,470 --> 00:16:29,800 possibly do it for particular case if 370 00:16:34,110 --> 00:16:31,480 they needed if they placed something 371 00:16:36,590 --> 00:16:34,120 that was um more or less a Milky Way 372 00:16:38,910 --> 00:16:36,600 super massive black hole causing it and 373 00:16:40,990 --> 00:16:38,920 not far from the earth and then you can 374 00:16:43,389 --> 00:16:41,000 do that and then once you have 80 of 375 00:16:47,670 --> 00:16:43,399 these examples you can start wondering a 376 00:16:49,910 --> 00:16:47,680 little um but um let's say we didn't get 377 00:16:52,629 --> 00:16:49,920 closer to an explanation with this paper 378 00:16:54,470 --> 00:16:52,639 but we really uh liked the very 379 00:16:57,069 --> 00:16:54,480 beautiful example that we found that 380 00:16:59,749 --> 00:16:57,079 gives even more weight to this multiple 381 00:17:02,350 --> 00:16:59,759 transients you can see see here is there 382 00:17:05,110 --> 00:17:02,360 in July 1952 it's not there in October 383 00:17:08,870 --> 00:17:05,120 91 you can see it in panar you can't see 384 00:17:10,829 --> 00:17:08,880 it in panar side not in ztf and then we 385 00:17:14,069 --> 00:17:10,839 used the world's largest optical 386 00:17:16,710 --> 00:17:14,079 telescope at 10.4 meter on La Palma our 387 00:17:19,429 --> 00:17:16,720 colleague did beautiful images in the 388 00:17:23,230 --> 00:17:19,439 red in the blue and we saw nothing 389 00:17:26,350 --> 00:17:23,240 there so uh uh we published a paper 390 00:17:28,029 --> 00:17:26,360 discreetly written and it got uh lots of 391 00:17:30,350 --> 00:17:28,039 like hundreds of thousand of views on 392 00:17:32,029 --> 00:17:30,360 various YouTube uh influencers channels 393 00:17:34,150 --> 00:17:32,039 they got very 394 00:17:36,190 --> 00:17:34,160 interested now there is just something I 395 00:17:38,669 --> 00:17:36,200 want to share a coincidence with 396 00:17:40,470 --> 00:17:38,679 you there's something very funny about 397 00:17:43,190 --> 00:17:40,480 the date that I didn't know about when 398 00:17:45,350 --> 00:17:43,200 we found the triple Transit another of 399 00:17:49,029 --> 00:17:45,360 my friends actually my media agent 400 00:17:51,710 --> 00:17:49,039 pointed out you know that date rings a 401 00:17:54,029 --> 00:17:51,720 bell so then I went back and I decided 402 00:17:55,950 --> 00:17:54,039 to take a look at the other candidate 403 00:17:57,070 --> 00:17:55,960 these aligned ones at the top candidates 404 00:17:58,990 --> 00:17:57,080 that we had because we had five 405 00:18:02,789 --> 00:17:59,000 candidates listed 406 00:18:04,669 --> 00:18:02,799 uh and we have still a problem that 407 00:18:07,990 --> 00:18:04,679 again it coincides very close to these 408 00:18:10,710 --> 00:18:08,000 Washington events and I'm going to say 409 00:18:13,270 --> 00:18:10,720 it's just a coincidence 410 00:18:16,470 --> 00:18:13,280 probably so that is why we now are 411 00:18:18,070 --> 00:18:16,480 trying to figure out how can we test 412 00:18:21,070 --> 00:18:18,080 these multiple 413 00:18:24,750 --> 00:18:21,080 transits and actually find out if these 414 00:18:26,830 --> 00:18:24,760 were coincidences or if this is a real 415 00:18:29,390 --> 00:18:26,840 phenomenon because I think it is a real 416 00:18:31,230 --> 00:18:29,400 phenomenon we have like too many 417 00:18:34,870 --> 00:18:31,240 examples but how can we test if this is 418 00:18:36,630 --> 00:18:34,880 related to for example uh Reflections or 419 00:18:39,190 --> 00:18:36,640 emissions associated with non- human 420 00:18:42,149 --> 00:18:39,200 objects this is the key question and 421 00:18:43,990 --> 00:18:42,159 that and that uh we can do and we have 422 00:18:45,310 --> 00:18:44,000 created a new project called EXO probe 423 00:18:47,510 --> 00:18:45,320 that I'm 424 00:18:48,750 --> 00:18:47,520 leading and I'm going to tell you about 425 00:18:52,630 --> 00:18:48,760 that because this is going to be 426 00:18:55,710 --> 00:18:52,640 completely new we have just started it 427 00:18:57,830 --> 00:18:55,720 and I'm going to argue again for why we 428 00:18:59,029 --> 00:18:57,840 should do it this way because I believe 429 00:19:00,909 --> 00:18:59,039 in that 430 00:19:02,950 --> 00:19:00,919 uh extraterrestrial probes are highly 431 00:19:05,390 --> 00:19:02,960 likely I think AI has been giving many 432 00:19:07,310 --> 00:19:05,400 arguments of why this is such a like 433 00:19:09,470 --> 00:19:07,320 realistic idea because we humans can 434 00:19:10,830 --> 00:19:09,480 send something to another star why 435 00:19:14,149 --> 00:19:10,840 shouldn't they be able to send something 436 00:19:15,990 --> 00:19:14,159 to us it's just natural think of Voyager 437 00:19:18,549 --> 00:19:16,000 think of pioneer and you have 40 billion 438 00:19:20,430 --> 00:19:18,559 Earth siiz planets just in the Milky Way 439 00:19:22,750 --> 00:19:20,440 and also nobody said that they have to 440 00:19:27,070 --> 00:19:22,760 be biological in origin you could even 441 00:19:28,630 --> 00:19:27,080 have some kind of AI and robotic little 442 00:19:31,430 --> 00:19:28,640 probes that are spread throughout the 443 00:19:33,950 --> 00:19:31,440 Galaxy and you can search for them we 444 00:19:35,750 --> 00:19:33,960 couldn't do these searches in the 60s 445 00:19:37,630 --> 00:19:35,760 because in the 60s they were talking 446 00:19:39,789 --> 00:19:37,640 about already like Radio City versus 447 00:19:41,990 --> 00:19:39,799 searching for probes but the technology 448 00:19:44,029 --> 00:19:42,000 wasn't there the technology to do these 449 00:19:46,070 --> 00:19:44,039 searches came with a development of the 450 00:19:48,789 --> 00:19:46,080 SEO sensors as you use in your mobile 451 00:19:52,669 --> 00:19:48,799 phone when one digitized the the old 452 00:19:55,190 --> 00:19:52,679 plate surveys or created new Sky surveys 453 00:19:57,990 --> 00:19:55,200 like in the last 10 or 15 years and that 454 00:20:00,149 --> 00:19:58,000 is when we developed the technology to 455 00:20:03,070 --> 00:20:00,159 actually search for et probes so now 456 00:20:07,149 --> 00:20:03,080 when we have it why not do 457 00:20:08,669 --> 00:20:07,159 it so I'm coming back to the again the 458 00:20:11,510 --> 00:20:08,679 global network of telescopes that we 459 00:20:17,070 --> 00:20:11,520 want to work on of course we're going to 460 00:20:22,669 --> 00:20:20,789 number so the idea here is that we I 461 00:20:25,390 --> 00:20:22,679 just to repeat it for those who maybe 462 00:20:27,430 --> 00:20:25,400 forgot is that we want to detect an an 463 00:20:29,310 --> 00:20:27,440 unidentified object we want to validate 464 00:20:33,110 --> 00:20:29,320 it directly from multiple telescopes we 465 00:20:35,350 --> 00:20:33,120 want to acquire a Spectra and see uh 466 00:20:37,190 --> 00:20:35,360 what is it is it different is it similar 467 00:20:39,950 --> 00:20:37,200 what are we actually seeing and we want 468 00:20:41,710 --> 00:20:39,960 to localize it because and if you have 469 00:20:43,830 --> 00:20:41,720 many telescope there's something very 470 00:20:45,549 --> 00:20:43,840 beautiful about all that you can 471 00:20:47,430 --> 00:20:45,559 localize it so accurately that you can 472 00:20:49,590 --> 00:20:47,440 go there and bring it 473 00:20:52,310 --> 00:20:49,600 down and that's something that would be 474 00:20:55,710 --> 00:20:52,320 very neat to do of course so I work on 475 00:20:58,110 --> 00:20:55,720 this um uh with several more scientists 476 00:21:00,029 --> 00:20:58,120 U primarily jof Marcy who is our 477 00:21:02,470 --> 00:21:00,039 exoplanet Pioneer and discovered the 478 00:21:05,029 --> 00:21:02,480 first like 75% of all the first 479 00:21:06,630 --> 00:21:05,039 exoplanets and also Brian Hill John gerz 480 00:21:11,510 --> 00:21:06,640 and there are two more people who are 481 00:21:14,310 --> 00:21:11,520 involved uh Alina stanka and U Stefan 482 00:21:15,870 --> 00:21:14,320 guer so we have a small team this time 483 00:21:18,710 --> 00:21:15,880 we're going to go for a very small team 484 00:21:21,630 --> 00:21:18,720 to uh work effectively and the goal is 485 00:21:24,510 --> 00:21:21,640 to find these short flashes Reflections 486 00:21:26,269 --> 00:21:24,520 or emissions associated with artificial 487 00:21:28,990 --> 00:21:26,279 objects and we're going to look for this 488 00:21:31,390 --> 00:21:29,000 very short like one second uh long 489 00:21:34,190 --> 00:21:31,400 transients because astronomers don't 490 00:21:35,549 --> 00:21:34,200 care about this uh parameter space they 491 00:21:38,070 --> 00:21:35,559 have been looking for transients like 492 00:21:39,430 --> 00:21:38,080 supernovas that are there for months 493 00:21:42,070 --> 00:21:39,440 they have been looking for things that 494 00:21:44,390 --> 00:21:42,080 are lasting for maybe hours but this 1 495 00:21:47,149 --> 00:21:44,400 second parameter space is almost 496 00:21:48,789 --> 00:21:47,159 entirely unsampled so of course it makes 497 00:21:50,549 --> 00:21:48,799 it interesting even from astrophysics 498 00:21:52,269 --> 00:21:50,559 point of view if you find some new 499 00:21:54,789 --> 00:21:52,279 phenomenon or if you find some Optical 500 00:21:56,870 --> 00:21:54,799 Afterglow of a gamma Reb burst it's 501 00:21:59,230 --> 00:21:56,880 there are lot of nice things that you 502 00:22:01,269 --> 00:21:59,240 can do here I I really like to explore 503 00:22:04,470 --> 00:22:01,279 new parameter spaces like when we were 504 00:22:06,990 --> 00:22:04,480 looking for Vanishing stars because you 505 00:22:09,950 --> 00:22:07,000 ter in cognit is just so incredibly 506 00:22:12,390 --> 00:22:09,960 fun and the goal is to detect validate 507 00:22:14,630 --> 00:22:12,400 localize characterize and finally if you 508 00:22:18,029 --> 00:22:14,640 find something bring it down to the 509 00:22:19,870 --> 00:22:18,039 Earth I'm not ashamed to say it so we 510 00:22:22,350 --> 00:22:19,880 started the project on the 1 of August 511 00:22:24,149 --> 00:22:22,360 so it's a very new and it's uh thanks to 512 00:22:26,149 --> 00:22:24,159 the support of a 513 00:22:29,350 --> 00:22:26,159 funer and I'm going to walk you through 514 00:22:33,230 --> 00:22:29,360 the process of how it's going to work 515 00:22:35,789 --> 00:22:33,240 so let's look here first we really need 516 00:22:38,950 --> 00:22:35,799 to select the appropriate 517 00:22:41,430 --> 00:22:38,960 instrumentation and you cannot use just 518 00:22:44,310 --> 00:22:41,440 any telescope of course of of any size 519 00:22:46,669 --> 00:22:44,320 because you need very good tracking on 520 00:22:49,230 --> 00:22:46,679 the mount you need very high Optical 521 00:22:52,390 --> 00:22:49,240 quality when you search for these transs 522 00:22:54,870 --> 00:22:52,400 and you also need a wide field of view 523 00:22:56,669 --> 00:22:54,880 so some people say oh why don't you use 524 00:22:58,230 --> 00:22:56,679 just an amateur telescope well of course 525 00:23:01,029 --> 00:22:58,240 the amateur telescope has Terri able 526 00:23:05,669 --> 00:23:01,039 Optical quality and also it's not going 527 00:23:09,149 --> 00:23:05,679 to uh fulfill any of your needs for the 528 00:23:11,870 --> 00:23:09,159 project and uh you really need that 529 00:23:13,149 --> 00:23:11,880 tracking and so and others are going to 530 00:23:15,789 --> 00:23:13,159 ask so why don't you use some 531 00:23:17,909 --> 00:23:15,799 professional telescope like the jwst or 532 00:23:19,269 --> 00:23:17,919 Nordic optical telescope and those of us 533 00:23:21,390 --> 00:23:19,279 who are astronomers know that it's 534 00:23:23,750 --> 00:23:21,400 incredibly difficult to get more than a 535 00:23:26,070 --> 00:23:23,760 few hours on any of these telescopes and 536 00:23:29,510 --> 00:23:26,080 moreover the field of you matters 537 00:23:32,350 --> 00:23:29,520 because like jwst has a very small field 538 00:23:34,710 --> 00:23:32,360 of view so if you're going to try to use 539 00:23:37,510 --> 00:23:34,720 any of those super telescopes you're 540 00:23:39,310 --> 00:23:37,520 going to end up with something like much 541 00:23:40,950 --> 00:23:39,320 fewer of transients that you can 542 00:23:43,070 --> 00:23:40,960 discover so you really need to balance 543 00:23:46,110 --> 00:23:43,080 it have a balance between the field of 544 00:23:48,750 --> 00:23:46,120 view the the depth you search for 545 00:23:51,029 --> 00:23:48,760 because you cannot use let's say mobile 546 00:23:53,710 --> 00:23:51,039 phones have a very big uh field of view 547 00:23:56,549 --> 00:23:53,720 but they don't have a very much of uh a 548 00:23:58,630 --> 00:23:56,559 depth so all that has to work we have 549 00:24:01,269 --> 00:23:58,640 selected that 550 00:24:03,590 --> 00:24:01,279 next in order to verify and localize a 551 00:24:05,149 --> 00:24:03,600 probe you need at least two telescopes 552 00:24:07,669 --> 00:24:05,159 and the more telescopes you have the 553 00:24:08,950 --> 00:24:07,679 more accurate you will have the location 554 00:24:10,510 --> 00:24:08,960 and you can detect this Flash in 555 00:24:13,310 --> 00:24:10,520 multiple synchronized telescopes and 556 00:24:16,430 --> 00:24:13,320 that's what we want and as they have a 557 00:24:18,230 --> 00:24:16,440 specific set distance that we have U 558 00:24:20,630 --> 00:24:18,240 carefully selected you will be able to 559 00:24:23,390 --> 00:24:20,640 measure the Parallax and say where how 560 00:24:25,830 --> 00:24:23,400 far the object is from us currently we 561 00:24:27,310 --> 00:24:25,840 use three OBS or currently we are uh 562 00:24:29,310 --> 00:24:27,320 planning three observatories I would 563 00:24:31,149 --> 00:24:29,320 rather say because I'm waiting for our 564 00:24:33,110 --> 00:24:31,159 main telescope that is much better than 565 00:24:35,269 --> 00:24:33,120 the other two uh we still need to think 566 00:24:37,590 --> 00:24:35,279 about how to upgrade these two uh the 567 00:24:40,149 --> 00:24:37,600 main telescope is going to be purchased 568 00:24:41,549 --> 00:24:40,159 the coming weeks we have already put in 569 00:24:43,230 --> 00:24:41,559 an order everything and now it goes 570 00:24:44,350 --> 00:24:43,240 through the administrative process of 571 00:24:46,710 --> 00:24:44,360 Stockholm 572 00:24:50,269 --> 00:24:46,720 University the the third thing we do in 573 00:24:52,470 --> 00:24:50,279 order to um make our life easier is that 574 00:24:55,950 --> 00:24:52,480 we skip everything inside the atmosphere 575 00:24:59,190 --> 00:24:55,960 off with the pigeons off with the um 576 00:25:00,789 --> 00:24:59,200 ducks and um um airplanes we don't want 577 00:25:02,870 --> 00:25:00,799 to do anything of that so we stayed 578 00:25:05,029 --> 00:25:02,880 outside atmosphere and not only that we 579 00:25:08,110 --> 00:25:05,039 try to in the initial phases we are 580 00:25:11,149 --> 00:25:08,120 going to try to stay uh even outside the 581 00:25:12,990 --> 00:25:11,159 orbits where we have most of the human 582 00:25:14,669 --> 00:25:13,000 satellites so we are actually probing 583 00:25:18,830 --> 00:25:14,679 the inner solar 584 00:25:20,630 --> 00:25:18,840 system uh we also have a very efficient 585 00:25:22,750 --> 00:25:20,640 method to filter away all human 586 00:25:26,110 --> 00:25:22,760 satellites and space debris in one go as 587 00:25:27,870 --> 00:25:26,120 we observe so uh this is something I'm 588 00:25:30,350 --> 00:25:27,880 very proud proud of I will hope I will 589 00:25:32,950 --> 00:25:30,360 be able to share and this technique I 590 00:25:34,950 --> 00:25:32,960 really like to like exploring new 591 00:25:36,950 --> 00:25:34,960 techniques to get rid of satellites I 592 00:25:39,590 --> 00:25:36,960 can't help it this is an obsession of 593 00:25:42,909 --> 00:25:39,600 mine since the time we are going to use 594 00:25:44,590 --> 00:25:42,919 already existing uh techniques that also 595 00:25:47,149 --> 00:25:44,600 U my colleague joof Marcy has been 596 00:25:49,630 --> 00:25:47,159 developing where you can get real-time 597 00:25:53,230 --> 00:25:49,640 spectroscopy in a wide field and that is 598 00:25:56,110 --> 00:25:53,240 so that we directly can characterize the 599 00:25:58,230 --> 00:25:56,120 thing and of course the goal is to add 600 00:26:02,230 --> 00:25:58,240 more telescopes as I said 601 00:26:03,909 --> 00:26:02,240 um however it's a little bit uh there 602 00:26:06,230 --> 00:26:03,919 are some practical challenges with it 603 00:26:07,909 --> 00:26:06,240 but that can allow us to increase the 604 00:26:09,630 --> 00:26:07,919 range of altitudes and the more 605 00:26:11,870 --> 00:26:09,640 combination you have of these telescopes 606 00:26:14,990 --> 00:26:11,880 where you measure to parallx the more 607 00:26:16,389 --> 00:26:15,000 better is going your localization in 3D 608 00:26:19,590 --> 00:26:16,399 going to 609 00:26:21,430 --> 00:26:19,600 be and of course the most important if 610 00:26:23,669 --> 00:26:21,440 the ET probe detection is 611 00:26:25,750 --> 00:26:23,679 successful let's activate the space 612 00:26:28,190 --> 00:26:25,760 garbage collectors I would hope to find 613 00:26:32,870 --> 00:26:28,200 some company that would like to help us 614 00:26:35,430 --> 00:26:32,880 to bring down the probe and I'm yeah I 615 00:26:38,669 --> 00:26:35,440 wouldn't worry too much about the uh if 616 00:26:41,590 --> 00:26:38,679 the probes agrees with me or not 617 00:26:44,789 --> 00:26:41,600 so and I think it is it will be a 618 00:26:47,269 --> 00:26:44,799 possibility to do so I developed this um 619 00:26:49,389 --> 00:26:47,279 program together with Dr marid as I 620 00:26:51,630 --> 00:26:49,399 mentioned who discovered the first 70 621 00:26:53,750 --> 00:26:51,640 out of 100 exoplanets and also received 622 00:26:55,470 --> 00:26:53,760 the sh prize that he shared with a Nobel 623 00:26:58,230 --> 00:26:55,480 Prize winner Michelle mayora for his 624 00:27:00,710 --> 00:26:58,240 great um 625 00:27:02,830 --> 00:27:00,720 discoveries he's also the the creator of 626 00:27:06,590 --> 00:27:02,840 the Breakthrough listen uh 627 00:27:08,149 --> 00:27:06,600 program and the Vasco team um that have 628 00:27:10,230 --> 00:27:08,159 been working with me on the searches for 629 00:27:13,750 --> 00:27:10,240 transients and Vanishing stars as I 630 00:27:16,310 --> 00:27:13,760 mentioned is a very uh uh is a theme of 631 00:27:20,350 --> 00:27:16,320 40 people with diverse backgrounds and 632 00:27:22,630 --> 00:27:20,360 we enjoy this work together here I had a 633 00:27:26,190 --> 00:27:22,640 very nice animation that I'm I'm afraid 634 00:27:29,070 --> 00:27:26,200 I cannot show here um somehow it doesn't 635 00:27:31,149 --> 00:27:29,080 work but where you would be able to see 636 00:27:33,710 --> 00:27:31,159 how a flash 637 00:27:35,549 --> 00:27:33,720 here uh how something is flashing and as 638 00:27:37,830 --> 00:27:35,559 the globe is moving different telescopes 639 00:27:40,669 --> 00:27:37,840 are seeing everything and are detecting 640 00:27:41,950 --> 00:27:40,679 this Flash and uh of course those who 641 00:27:45,470 --> 00:27:41,960 are interested can come and I can show 642 00:27:47,070 --> 00:27:45,480 you the animation later um and with that 643 00:27:50,470 --> 00:27:47,080 I very much would like to thank you