Composite image of Arp 26, also known as M101 or the Pinwheel Galaxy.
It combines data from X-ray (Chandra, purple), infrared (Spitzer, red), visible light (Hubble, yellow), and ultraviolet (GALEX, blue) telescopes.
Credit: NASA, CXC, SAO;NASA, JPL-Caltech;NASA, STScI
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