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2012-01-12 10:54:20

Left is an image of the nearby spiral Andromeda galaxy: The rectangle highlights the 7,900 light-years-wide region probed by NASA’s Hubble Space Telescope near the galaxy's hub; there a grouping of stars shows as a bright area, and the blue dots sprinkled throughout are extremely hot ultra-blue stars.

Image uploaded by Elizabeth Cunningham Perkins
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