Sarah Fecht
at 10:17 AM Feb 9 2017

Europe's Gaia spacecraft has spotted a 'bridge of stars' between two dwarf galaxies. The bridge—a halo of faint light arching between two of the Milky Way's nearest neighbors—is 43,000 light-years long.

Sarah Fecht
at 09:46 AM Jul 11 2014

Technically, the galaxies have probably existed for billions of years, but these seven had slipped under the radar until now. They’re dwarf galaxies, so-named because they contain only a few billion stars, compared to galaxies such as our own Milky Way, which may contain up to 400 billion stars. Dwarfs are the most abundant galaxies in the universe, but they’re hard to detect because their light is dim and diffuse.

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