10 June 2013
Space.com
An ultra-faint collection of 1,000 stars orbiting the Milky Way is the most lightweight galaxy ever discovered, scientists say.
The dwarf galaxy known as Segue 2 is bound together by a tiny clump of dark matter. Scientists who measured it using Hawaii's Keck Observatory say the finding adds support to theories about the formation of the universe.
Models predict that the outskirts of our cosmic neighborhood should be teeming with tiny galaxies, but scientists have found far fewer satellite dwarf galaxies in the Local Group than they expected.
Space.com
An ultra-faint collection of 1,000 stars orbiting the Milky Way is the most lightweight galaxy ever discovered, scientists say.
The dwarf galaxy known as Segue 2 is bound together by a tiny clump of dark matter. Scientists who measured it using Hawaii's Keck Observatory say the finding adds support to theories about the formation of the universe.
Models predict that the outskirts of our cosmic neighborhood should be teeming with tiny galaxies, but scientists have found far fewer satellite dwarf galaxies in the Local Group than they expected.
Story continues here: space.com
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