Almost twice the size of our Milky Way, M-101, shown here in infrared, is about twenty-five million light years away in the Big Dipper.
Almost twice the size of our Milky Way, M-101, shown here in infrared, is about twenty-five million light years away in the Big Dipper.
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Posted in Space
Tagged infrared wavelength, M-101, Pinwheel Galaxy, Spitzer Space Telescope















