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.
Comments Off on Pinwheel galaxy
Posted in Space
Tagged infrared wavelength, M-101, Pinwheel Galaxy, Spitzer Space Telescope

The Orion Spur, about a third of the way in from the outer edge, is where the home planet and the sun lie on this map of the Milky Way. The view without the superimposed map is an illustration of what a distant astronomer in another galaxy likely would see, according to new, infrared info gathered by the Spitzer Space Telescope.