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Cosmic Pancake Spotted Around Andromeda GalaxyThis cosmic pancake of 13 dwarf galaxies around Andromeda is 42,000 light-years thick.
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Doomed Space Cloud Hints at Planet Formation in Milky Way's CoreThe dust cloud, while doomed, shows the material to build planets exists in our galaxy's core.
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Ingredients for Big Black Holes Detected in Milky Way's CoreThe cosmic "seeds" may help explain how our galaxy's monster black hole formed.
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'Impossible' Stars Found in Super-Close Orbital DancesAstronomers found four pairs of stars that orbit each other in less than four hours.
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Mystery Wave in Milky Way Galaxy Suggests Recent CrashA dwarf galaxy or clump of dark matter may have plowed through the Milky Way.
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Ancient Galaxy Close Encounter Created Giant Gas 'Bridge'A bridge of hydrogen gas has been detected between two neighboring galaxies.
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Gallery: Microbes Make Glowing Galaxies & Other ArtAn artist's new technique allows him to create fluorescent images from bacteria.
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Dark Matter Theories Challenged By Satellite Galaxy DiscoveryA new study challenges the existence of dark matter in the universe.
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New Milky Way Photo Captures 1 Billion StarsThe new photo captures perhaps 1 percent of our galaxy's stars.
