Galaxy Cluster

A grouping of galaxies. The Milky Way belongs to a small cluster known as the Local Group, but other clusters can contain hundreds or thousands of galaxies. Clusters of galaxies, in turn, can group together to form superclusters.

Radio Programs

Great Wall A wall of galaxies across the universe Monday, November 17, 2014
Coma Galaxy Cluster A brilliant cluster of galaxies Friday, April 19, 2013
Fire and Water Fire and water in the night sky Saturday, December 3, 2011
Herculean Galaxies Stirring up spiral galaxies Friday, October 1, 2010
Bullet Cluster Catching a cosmic bullet Tuesday, July 20, 2010
Dark Matter Most of the universe goes missing Monday, July 19, 2010
Fornax Cluster Clustering around the furnace Saturday, January 9, 2010
Largest Void A giant "hole" in the universe Wednesday, February 18, 2009
First Supercluster Big clumps in the universe Tuesday, February 17, 2009

Featured Images

Simulation of the early universe
Tangled Web Saturday, May 10, 2014
HST image of thousands of galaxies
Galaxies Galore Thursday, April 17, 2014
Hubble image of a galaxy cluster and the deduced location of its dark matter
Dark Universe Monday, August 5, 2013
Hubble view of Coma Cluster of galaxies
Crowning Glory Friday, April 19, 2013
Optical and X-ray image of the galaxy cluster Abell 383
Brilliant Darkness Friday, March 16, 2012
New Heavyweight Champion Monday, February 6, 2012
Galactic Swirl Wednesday, December 14, 2011
NGC 4438 and NGC 4435, galaxies in Virgo
Beautiful Eyes Thursday, August 25, 2011
Ground-based image of the galaxy cluster Abell 2151, in Hercules
Galaxies Galore Friday, October 1, 2010
Galactic Beauty Wednesday, August 11, 2010
This giant cluster of galaxies and hot gas provides evidence of dark matter.
Cosmic Bullets Tuesday, July 20, 2010
Galactic Giant Friday, May 9, 2008
Crowded Neighborhood Thursday, May 8, 2008
Sharper View Wednesday, May 7, 2008
Glowing Galaxies Tuesday, May 6, 2008
Galaxies Galore Monday, May 5, 2008
Galactic Embrace Thursday, May 1, 2008
Virgo Cluster Monday, July 2, 2007
Jetting Away from a Black Hole Thursday, November 9, 2006


Virgo Virgo is the second-largest constellation -- so...


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