Andromeda Galaxy, M31

The closest large galaxy to our own, at a distance of about 2.5 million light-years. It is a spiral galaxy that appears to be slightly larger but less massive than the Milky Way.

Radio Programs

Bright Black Hole Brightness from the ultimate darkness Wednesday, January 30, 2013
M31’s Central Cluster Bright stars around a galaxy’s dark heart Tuesday, January 29, 2013
Collision Course Taking aim at another galaxy Wednesday, September 12, 2012
Andromeda Galaxy A galactic twin in the evening sky Tuesday, September 11, 2012
Andromeda Galaxy Looking deep into the universe Tuesday, October 25, 2011
Galactic Leaders The leaders of a galactic pack Friday, November 5, 2010
Supernova 1885 Lighting up the enormous universe Friday, August 20, 2010
Black Hole Flare-Up A black hole gets brighter Tuesday, August 3, 2010
Andromeda Galaxy
Andromeda Galaxy

Featured Images

Close-up of the core of M31
 M31 Blues Tuesday, January 29, 2013
Andromeda and the Milky Way head for a galactic pile-up
 Collision Course Wednesday, September 12, 2012
Starry Neighbor Friday, February 26, 2010
Hot Galaxy Friday, September 18, 2009
Galactic Empire Tuesday, September 19, 2006

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