You need to see this animation.  It’s an amazing picture showing the Hubble Ultra Deep Field and the small patch of sky Astronomers had to aim at in order to photograph it.  The moon is there for comparison.  The patch of sky is about the size of a grain of sand held at arm’s length. Courtesy of gfycat.com, it really puts things in perspective.  The crazy part is that if you look in any direction in the universe, in patches of sky as small as this one, you see the exact same thing.  There are more galaxies in the Universe than we...