Messier Objects

A list of about 110 astronomical objects compiled by French astronomer Charles Messier at the end of the 18th century. The catalog includes objects such as nebulae, star clusters, and galaxies, and the objects are denoted by an M followed by a number from 1 to 110.

Radio Programs

 M15 Debating a medium-sized black hole Saturday, October 22, 2011
M2 An ancient family of stars Saturday, September 17, 2011
M7 A bright but distant star cluster Sunday, August 28, 2011
The Big Dog A constellation with a bite Friday, March 25, 2011
Cancer A famous but faint constellation Saturday, March 12, 2011
M87 Black Hole Looking for a hidden giant Thursday, March 10, 2011
Young Black Hole Watching an infant black hole Wednesday, March 9, 2011
M46 and M47 Two prominent "families" of stars Saturday, February 26, 2011
Off-Center Black Hole A black hole that's out of position Saturday, August 14, 2010
M101 Outlining a perfect cosmic pinwheel Sunday, June 13, 2010
M81 A "grand design" for a galaxy Saturday, June 12, 2010
M33 A close galactic neighbor Friday, November 27, 2009
M4 A nearby family of old stars Thursday, July 30, 2009
More M87 Illuminating a galaxy's darkness Thursday, May 14, 2009
M87 A galaxy piles up the zeroes Wednesday, May 13, 2009
M5 A giant family of old stars Tuesday, May 12, 2009

Resources

 Constellation Guide: Virgo Virgo is the second-largest constellation -- so...
Constellation Guide: Cancer, the Crab Although it is one of the constellations of the...

Featured Images

The star cluster M7
 Aging Family Sunday, August 28, 2011
X-ray and radio image of galaxy M87
 Close to the Monster Thursday, March 10, 2011
M87 black hole
 Busy Black Hole Wednesday, August 11, 2010
An ultraviolet view of the spiral galaxy M81 shows young, hot stars in blue and
Grand Galaxy Saturday, June 12, 2010
Mini Us Friday, November 27, 2009
Crowded Neighborhood Thursday, July 30, 2009
Colorful Nursery Thursday, July 9, 2009

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