Hubble Extreme Deep Field
From Wikipedia, the free encyclopedia
The Hubble eXtreme Deep Field (XDF) is an image of a small part of space in the center of the Hubble Ultra Deep Field within the constellation Fornax, showing the deepest optical view in space.
http://en.wikipedia.org/wiki/Hubble_Extreme_Deep_Field
For more on the XDF, see the XDFProject website at http://xdf.ucolick.org/xdf.html