Faint, distant galaxies, observed by Hubble. They are arranged on four columns and seven rows. Most appear as red splotches. A few of the images also hold regions of yellow, blue, and or green pixels.

Hubble’s Faintest and Farthest Galaxies

A sample of the faintest and farthest galaxies in the Hubble Ultra Deep Field shows that they were irregularly shaped and frequently interacting in the distant past.

Credits: NASA, ESA, R. Bouwens and G. Illingworth (University of California, Santa Cruz)