Deep viewing in Virgo

"An international team of 13 astronomers used the Hubble Space Telescope's Advanced Camera for Surveys (ACS) to stare for 25 hours at a relatively barren patch of space near the center of the Virgo Cluster.

"This vast assemblage contains more than 1,000 known galaxies and is centered about 55 million light-years from Earth, making it the largest galaxy cluster in the local universe. The ACS image covered an area of sky about 1 percent the size of the full Moon. Known as the Virgo IntraCluster Stars project, it is one of the deepest Hubble images ever taken."