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.

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.

A host of supermassive black holes populating the universe during the cosmic dark ages appears to drastically exceed estimates for how many billion-solar-mass black holes should have existed back ...

One that sticks out, for instance, is the iconic Hubble Ultra-Deep Field, aka the deepest visible-light view of our universe ever created. Thanks to the Hubble telescope, astronomers know our ...

Hubble gazes at galaxies all the time—the famous Hubble Deep Field images alone show countless galaxies in faraway parts of the universe. Andromeda, however, is much closer and takes up more of ...

In commemoration of Edwin Hubble's discovery of a Cepheid variable class star, called V1, in the neighboring Andromeda galaxy 100 years ago, astronomers partnered with the American Association of ...