the hubble extreme deep field

... or the XDF, for short.



the deepest ever view of the universe, with about 5500 galaxies. this is a two million second exposure!

wow!

credit:
NASA, ESA, G. Illingworth, D. Magee, and P. Oesch (University of California, Santa Cruz), R. Bouwens (Leiden University), and the HUDF09 Team

more info at spacetelescope.org