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.
This view of nearly 10,000 galaxies is called the Hubble Ultra Deep Field. The snapshot includes ... [+] galaxies of various ages, sizes, shapes, and colours. The smallest, reddest galaxies ...