Happy birthday Carl Sagan

Mosaic image of a galactic center taken by NASA's Chandra X-Ray Observatory showing the center region of our Milky Way revealing hundreds of white dwarf stars, neutron stars, and black holes bathed in an incadencent fog of multimillion degree gas. The supermassive black hole at the center of the galaxy is located inside a bright white path in the center of the image. The colors indicate X-ray energy bands in red (low), green (medium), and blue (high). (AP Photo/NASA,D.Wang, U.Mass)

November 09, 2013 4:13 pm  • 
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