Mystery Glow of Dark Matter Halos Fueled by Extragalactic Stars

SPACE.com
Mystery Glow of Dark Matter Halos Fueled by Extragalactic Stars
The image on the left shows a portion of our sky, called the Boötes field, in infrared light, while the image on the right shows a mysterious, background infrared glow captured by NASA's Spitzer Space Telescope in the same region of sky. Using
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