1 00:00:06,715 --> 00:00:09,551 This object is called the Veil Nebula. 2 00:00:09,551 --> 00:00:13,596 I think because of its sort of diaphanous appearance here, you can see 3 00:00:13,596 --> 00:00:16,725 through parts of it, but parts of it are very intricate, 4 00:00:16,725 --> 00:00:17,851 like a veil. 5 00:00:20,228 --> 00:00:22,981 And I think this is one of the more iconic 6 00:00:22,981 --> 00:00:26,276 of Hubble images for sure, because it's absolutely gorgeous. 7 00:00:26,317 --> 00:00:30,071 It's the result of a supernova explosion, a small piece 8 00:00:30,071 --> 00:00:33,533 of the resulting nebula that came, that was caused by the supernova. 9 00:00:34,284 --> 00:00:36,036 This is in the constellation Cygnus. 10 00:00:36,036 --> 00:00:39,039 It's part of a very much more massive structure. 11 00:00:39,039 --> 00:00:43,835 Supernovas tend to blow material out relatively spherically symmetric. 12 00:00:43,835 --> 00:00:46,963 And you look at this and say, well, that's a linear feature. 13 00:00:46,963 --> 00:00:48,173 You know, I don't I don't get it. 14 00:00:48,173 --> 00:00:50,967 It's just that we're looking at a very tiny piece of 15 00:00:50,967 --> 00:00:54,179 of this entire circle that's caused by the supernova. 16 00:00:58,475 --> 00:01:00,685 In this image, we've backed off a little bit. 17 00:01:00,727 --> 00:01:05,940 What you saw before was just a little piece of the area over here. 18 00:01:05,940 --> 00:01:09,778 This bright star at the center is called 52 Cygni. 19 00:01:09,778 --> 00:01:14,199 So that entire large circle is what we call the Cygnus Loop. 20 00:01:14,199 --> 00:01:18,703 This is a area on the western side that is glowing very brightly. 21 00:01:18,703 --> 00:01:22,540 There are other areas of the circle where material is glowing. 22 00:01:22,540 --> 00:01:25,543 There's an Eastern veil and some other areas in the north and south. 23 00:01:25,668 --> 00:01:29,214 This is perhaps the prettiest portion of the Cygnus Loop. 24 00:01:29,422 --> 00:01:32,175 You can see why we've chosen to go in an image it. 25 00:01:34,010 --> 00:01:38,765 The overall loop that we're talking about is something like 65 light years across. 26 00:01:38,765 --> 00:01:40,725 It's absolutely huge on the sky. 27 00:01:40,725 --> 00:01:45,146 The width of an individual filament like this is something way 28 00:01:45,146 --> 00:01:49,400 smaller, comparable to the distance from the Earth to Pluto 29 00:01:49,400 --> 00:01:50,735 is the scale you're seeing here. 30 00:01:53,196 --> 00:01:55,031 This long, thin filament 31 00:01:55,240 --> 00:01:58,034 glowing with all sorts of different colors, which means different 32 00:01:58,034 --> 00:02:02,288 temperatures of material, different elements, giving off the light. 33 00:02:02,497 --> 00:02:03,706 And you can just see that 34 00:02:03,706 --> 00:02:07,627 there's so much energy and so much material in this little arc. 35 00:02:08,336 --> 00:02:11,923 The process of this explosion sending out material 36 00:02:11,923 --> 00:02:14,926 and having this material hit preexisting material 37 00:02:14,926 --> 00:02:19,139 in the interstellar medium leads to all this complicated interaction. 38 00:02:19,139 --> 00:02:20,640 And you're getting this afterglow. 39 00:02:24,394 --> 00:02:25,895 You also have next to it 40 00:02:25,895 --> 00:02:29,440 this region of star formation, where we have a very dark cloud. 41 00:02:29,440 --> 00:02:33,111 You see very little background light getting through this area. 42 00:02:33,111 --> 00:02:34,654 See a little bit of material 43 00:02:34,654 --> 00:02:38,741 evaporating off this dark cloud caused by the bright stars below it. 44 00:02:38,741 --> 00:02:43,163 But you have this area, the stellar nursery above to the left, 45 00:02:43,246 --> 00:02:45,999 and you have this remnant of a star 46 00:02:45,999 --> 00:02:50,170 in the process of dying from the supernova explosion right next to it. 47 00:02:50,170 --> 00:02:53,464 So you have birth and death in the same image. 48 00:02:53,548 --> 00:02:56,176 Take the highest resolution version of this image 49 00:02:56,176 --> 00:02:59,179 and start blowing it up on your computer and looking at it. 50 00:02:59,470 --> 00:03:02,807 You can find cool things all over the place.