Pinwheel Galaxy
by Nasa
Title
Pinwheel Galaxy
Artist
Nasa
Medium
Photograph - Photograph
Description
With a diameter of about 170,000 light years, galaxy Messier 101 (M101) is nearly twice the size of our Milky Way. Its orientation allows telescopes to see its spiral structure face-on, inspiring its nickname -- the Pinwheel Galaxy. NASA's Chandra X-ray Observatory has obtained one of the longest exposures ever seen of a spiral galaxy in x-rays. The glowing lights indicate massive stars, black holes and supernova explosions, all wrapped in the hot gas "arms" of the galaxy.
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March 6th, 2013
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