Astronomers Uncover Dark-Matter Dominated Galaxy X Marked with a Cluster of Stars

February 9, 2015 4:31 PM

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Astronomers may have discovered a hidden galaxy, called Galaxy X. Veiled behind clouds of dust, the dark-matter-dominated galaxy is marked by a cluster of young, pulsating stars.

Actually spotting the galaxy wasn't easy. The researchers analyzed near-infrared data collected by ESO's survey, VISTA, to find four young stars that are located about 300,000 light-years away. These young stars are Cepheid variables, which means that they're "standard candles" that astronomers use ...

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