Can the oldest galaxies in the universe be found by looking in any direction?
A. Actually, the oldest galaxies we can see are right next door to us in the present universe. When we look out into space using the Hubble Space Telescope for example, we see images of galaxies that become younger and younger the further out we look. We actually see images of the youngest galaxies in the universe the farther out we look. Because there are probably over 100 billion galaxies in our visible universe, and because there are only about 42,000 square degrees in the surface of the sky, that means that in every square degree we will see nearly 3 million galaxies. Most of these will be the most distant and hence ‘youngest’ ones. So it doesn’t seem to matter what direction you look.
