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Colossus in Coma
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Colossus in Coma

September 25, 2013
A team of astronomers has discovered enormous arms of hot gas in the Coma cluster of galaxies by using NASA's Chandra X-ray Observatory and ESA's XMM-Newton. These features, which span at least half a million light years, provide insight into how the Coma cluster has grown through mergers of smaller groups and clusters of galaxies to become one of the largest structures in the Universe held together by gravity.

Credits: X-ray: NASA/CXC/MPE/J.Sanders et al, Optical: SDSS

[ Read the Article: Long Arms Of Hot Gas Discovered In The Coma Cluster ]