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 ...
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.
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