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Last updated on April 16, 2014 at 7:58 EDT

Latest M101 Stories

Pinwheeling Through The Sky
2013-06-10 09:49:48

ESA The face-on Pinwheel spiral galaxy is seen at ultraviolet wavelengths in this image taken by ESA´s XMM-Newton space telescope. Also known as M101, the galaxy lies 21 million light-years away in the constellation Ursa Major. It measures 170 000 light-years across — nearly twice the diameter of our own Milky Way Galaxy — and contains at least a trillion stars. About a billion of these stars could be similar to our own Sun. More often seen in visible light, here the...