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Dwarf Galaxies Found Orbiting The Milky Way, Like Galactic Moons
Saturday, March 14, 2015 8:44
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The illustration you see above maps out the previously discovered dwarf satellite galaxies (in blue) and eight of the newly discovered candidates (in red) as they sit outside the Milky Way. The image was put together by Yao-Yuan Mao, Ralf Kaehler, Risa Wechsler (KIPAC/SLAC)
Astronomers were stunned by the discovery of nine potential dwarf galaxies orbiting our galaxy. It marks the largest number ever discovered at once. The findings were published in two studies available on arXiv.
Dozens of dwarf galaxies were spotted in 2005 and 2006 above the northern hemisphere. The nine new galaxies were found in a small patch of sky above the southern hemisphere near the Large and Small Magellanic Clouds. These galaxies are about a million times smaller and a billion times dimmer than the Milky Way itself. This makes them a challenge to find.
Source: http://soundofheart.org/galacticfreepress/content/dwarf-galaxies-found-orbiting-milky-way-galactic-moons
