From HubbleSite.com: "Called the eXtreme Deep Field, or XDF, the photo was assembled by combining 10 years of NASA Hubble Space Telescope photographs taken of a patch of sky at the center of the original Hubble Ultra Deep Field. The XDF is a small fraction of the angular diameter of the full Moon."
Combining Hubble Space Telescope exposures taken over the past decade scientists are able to travel 13.2 billion years into the universe’s past in a portion of the sky that reveals “a wide range of galaxies, from spirals that are Milky Way-lookalikes to hazy reddish blobs that are the result of collisions between galaxies.”
For more on the Hubble eXtreme Deep Field project, visit Hubblesite.org, which includes additional photos, and a video that explains “how astronomers meticulously assembled mankind’s deepest view of the universe.”
