The Hubble Ultra Deep Field

This image, called the Hubble eXtreme Deep Field (XDF), combines Hubble observations taken over the past decade of a small patch of sky in the constellation of Fornax. With a total of more than 2 million seconds of exposure time, NASA says it's the deepest image of the universe ever made, combining data from previous images including the Hubble Ultra Deep Field (taken in 2002 and 2003) and Hubble Ultra Deep Field Infrared (2009).

The Hubble eXtreme Deep Field image contains several of the most distant objects ever identified, making it the deepest image of the Universe ever taken.