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Hubble Image of Galaxies
相關課程
- The whole point of this video is really just to look at, what in my mind is one of the coolest pictures
- ever taken by anything, and this was actually taken by the Hubble telescope
- and what they did is, they pointed the telescope at this area of our night sky
- and obviously the Hubble telescope, it's out in orbit, so it doesn't have to worry about
- all the interference from our actual atmosphere, so it gets a nice good look at things,
- but it's right over here, relative to the moon, and obviously the moon is moving around,
- but on that day, it was here, relative to the moon
- and they picked this location. They picked this location right over here
- because there weren't that many nearby stars there so
- it really allowed the telescope, because if there were nearby stars that light would've kind of outshone
- things that are behind it further away maybe perhaps galaxies. So just keep in mind everything you're
- going to see is in this little patch of the night sky, and I think the main point for showing the moon
- here. Obviously the moon is moving around so I'm not going to tell you which exact patch of sky this
- is. But to really give you an idea of how small of a patch of sky that really is. You really could've
- done this with any patch of sky, but in other patches of sky there wouldve been nearby stars that would've
- blocked things, but the galaxies are there, beyond that. The clusters of galaxies, and the super clusters
- of galaxies. So with that said out of the way, just remember everything we're talking about in this video
- is in this little patch of sky right over here. The whole point of this, once again like all of these
- videos is really to kind of just blow your mind. So this right here is what the Hubble telescope saw in that
- patch. Everything, everything that I'm showing you right here. I just want to be clear, some of these
- things are nearby stars, but most of these things are galaxies. That's a galaxy. That is a galaxy. That
- is a galaxy. That's a galaxy, and that's a galaxy. The reason I want to draw you this, obviously in the
- last video I showed you our local group, I showed you the Virgo super cluster, I showed you the kind of
- clusters of clusters and I even showed you the depiction of the observable universe. But what is amazing
- about this, is this is an actual picture. This is actually an image of a galaxy. Hey there is another
- galaxy. Oh look there's another galaxy up here. That you can keep doing that forever and this is just
- in that little patch of sky, and this is obviously not all of the galaxies of the universe. These are
- just the ones that we could see. There ones that might be even further, or there definitely are ones
- that are further back and their light is just even more. We could probably even focus on a patch of sky
- like that and see that many galaxies again. You can kind of keep, keep zooming in, but I just this thing,
- and I encourage you I mean there's so many unbelievable images you can look up. They're all on NASA's
- website, a lot of these are on Wikipedia. But these images are just unbelievable. You can see a galaxy,
- another galaxy, another galaxy, another galaxy. I suspect some of this stuff might actually be clusters
- of galaxies. Galaxy, another galaxy. And remember I'm just circling these galaxies, just left and right,
- and you kind of lose sight of what each galaxy actually is. These galaxies have hundred of billions
- of stars. That even from you know one pixel on these galaxies is unimaginable distance. Something that
- we could never, based with current technology, or even current science, we could ever hope to traverse
- in the lifetime of humanity. Not, much left in a lifetime of one individual. So these are just
- enormous things, and they're just an infinite number of them. So I just wanted to highlight this with
- you, and really just look at it. Its kind of breathtaking. Another galaxy right over there. I'm not going
- to keep doing it the whole day. I feel kind of bad for drawing on it, it kind of ruins the picture. But
- look at that, that's a nice looking galaxy right there. You got a bunch right over here. It really is
- just, you know. This video its probably the least dense with actual instruction, but hopefully the
- most dense with inspiration. Anyway, hopefully you enjoyed that. Let me just finish looking at the entire
- picture. I mean it just keeps going ,and going we can keep looking at it.
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