Over the last two decades, astronomers have constructed new and better images of our deepest view of the universe, including the Hubble Ultra Deep Field and more recently, the eXtreme Deep Field ...

It's called the "Hubble Ultra Deep Field" and was created when Hubble stared at a small patch of sky for the equivalent of more than 11 days to see some of the most distant galaxies ever observed.

2012's eXtreme Deep Field, or XDF, was assembled by combining 10 years of Hubble Space Telescope ... [+] photographs taken of a patch of sky at the center of the original Hubble Ultra Deep Field.