1 00:00:11,030 --> 00:00:07,780 [Music] 2 00:00:14,720 --> 00:00:11,040 Soho stands for solar Heliospheric 3 00:00:17,120 --> 00:00:14,730 Observatory and it's a mission that was 4 00:00:22,090 --> 00:00:17,130 launched by ISA the European Space 5 00:00:26,269 --> 00:00:22,100 Agency and NASA in 1995 to study the Sun 6 00:00:29,269 --> 00:00:26,279 the Sun is a star and the universe is 7 00:00:31,609 --> 00:00:29,279 made up of stars but the Sun is very 8 00:00:34,069 --> 00:00:31,619 close to us we're able to see the Sun in 9 00:00:37,010 --> 00:00:34,079 great details so if we can understand 10 00:00:38,810 --> 00:00:37,020 our Sun the mount allows us to have a 11 00:00:40,970 --> 00:00:38,820 better understanding of the rest of the 12 00:00:45,799 --> 00:00:40,980 stars and then consequently the rest of 13 00:00:47,029 --> 00:00:45,809 the universe well the first time I saw a 14 00:00:50,209 --> 00:00:47,039 Soho image 15 00:00:53,869 --> 00:00:50,219 my reaction was basically wow it's blown 16 00:00:56,900 --> 00:00:53,879 away I've never seen the the kinds of 17 00:01:00,200 --> 00:00:56,910 detail the kinds of structure the kinds 18 00:01:02,330 --> 00:01:00,210 of dynamics that were going on and any 19 00:01:04,160 --> 00:01:02,340 sort of image of the Sun before I think 20 00:01:08,580 --> 00:01:04,170 that this is probably true for a lot of 21 00:01:13,360 --> 00:01:10,960 one of the ways that Soho studies the 22 00:01:16,450 --> 00:01:13,370 corona is using what we call a 23 00:01:19,240 --> 00:01:16,460 coronagraph and so a coronagraph creates 24 00:01:21,730 --> 00:01:19,250 an artificial eclipse because the Sun 25 00:01:24,510 --> 00:01:21,740 itself the surface of the Sun is about a 26 00:01:27,850 --> 00:01:24,520 million times brighter than this outer 27 00:01:30,520 --> 00:01:27,860 structure of the corona we need to block 28 00:01:36,310 --> 00:01:30,530 that bright disc out so you can see the 29 00:01:38,670 --> 00:01:36,320 much fainter outer corona using Soho and 30 00:01:41,440 --> 00:01:38,680 using technique called helioseismology 31 00:01:43,780 --> 00:01:41,450 very similar to seismology on the earth 32 00:01:46,240 --> 00:01:43,790 we're actually able to see inside the 33 00:01:50,410 --> 00:01:46,250 Sun and so what we were able to do is 34 00:01:51,969 --> 00:01:50,420 see the layer of the Sun just below the 35 00:01:54,070 --> 00:01:51,979 visible surface that we call the 36 00:01:57,219 --> 00:01:54,080 convection zone and that's where all 37 00:01:59,050 --> 00:01:57,229 sorts of dynamics are going on the 38 00:02:02,260 --> 00:01:59,060 inside of the Sun is bubbling up to the 39 00:02:06,520 --> 00:02:02,270 surface and that's really where all of 40 00:02:08,800 --> 00:02:06,530 the the solar phenomena that we see is 41 00:02:11,260 --> 00:02:08,810 first developed and so we were able to 42 00:02:15,070 --> 00:02:11,270 see underneath the surface and see these 43 00:02:16,390 --> 00:02:15,080 flows of solar plasma see the formation 44 00:02:17,949 --> 00:02:16,400 of sunspots 45 00:02:19,900 --> 00:02:17,959 and this is something that's never been 46 00:02:23,570 --> 00:02:19,910 done before we're actually able to see 47 00:02:36,850 --> 00:02:34,270 [Music] 48 00:02:40,750 --> 00:02:36,860 I have been staring at images from Soho 49 00:02:42,610 --> 00:02:40,760 for months and on months and the data 50 00:02:45,010 --> 00:02:42,620 was beautiful but then when I saw trace 51 00:02:47,380 --> 00:02:45,020 you got to see these fine detail these 52 00:02:49,750 --> 00:02:47,390 tiny loops that you completely didn't 53 00:02:51,520 --> 00:02:49,760 even imagine where there and then you 54 00:02:56,500 --> 00:02:51,530 see them and there it's like nothing 55 00:02:59,740 --> 00:02:56,510 you've ever seen you're seeing details 56 00:03:01,449 --> 00:02:59,750 of the coronal loops in the previous 57 00:03:02,680 --> 00:03:01,459 images you would from other satellites 58 00:03:03,940 --> 00:03:02,690 it would look like it was just one big 59 00:03:05,260 --> 00:03:03,950 loop and when you're actually good to 60 00:03:07,900 --> 00:03:05,270 see trace you can see it's all these 61 00:03:10,870 --> 00:03:07,910 teeny tiny finally they almost look like 62 00:03:12,759 --> 00:03:10,880 threads and there's teeny tiny loops and 63 00:03:16,420 --> 00:03:12,769 they're just breaking off and reforming 64 00:03:17,860 --> 00:03:16,430 and throwing claz m'a one loop can be 65 00:03:19,840 --> 00:03:17,870 vastly different temperature than the 66 00:03:22,120 --> 00:03:19,850 next loop and so that has been a big 67 00:03:23,770 --> 00:03:22,130 thing it's helped with magnetic data 68 00:03:25,180 --> 00:03:23,780 they're able to see that when the loops 69 00:03:28,270 --> 00:03:25,190 break off they can see the way that 70 00:03:30,009 --> 00:03:28,280 magnetic field is twisting and so the 71 00:03:32,440 --> 00:03:30,019 instruments on Soho work closely with 72 00:03:34,330 --> 00:03:32,450 trace or and vice versa so that we can 73 00:03:36,150 --> 00:03:34,340 use all the data together to better 74 00:03:44,860 --> 00:03:36,160 understand things