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cluster of galaxies

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cluster of galaxies

Gravitationally bound grouping of galaxies, numbering from the hundreds to the tens of thousands. Large clusters of galaxies often exhibit extensive X-ray emission from intergalactic gas heated to tens of millions of degrees. Also, interactions of galaxies with each other and with the intracluster gas may deplete galaxies of their own interstellar gas. The Milky Way Galaxy belongs to the Local Group, which lies on the outskirts of the Virgo Cluster.



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This amazing cluster of galaxies is a mindboggling 10 BILLION light years away.
NASA's Fermi Gamma-ray Space Telescope sees NGC 1275, the core member of the Perseus cluster of galaxies, as a source of high-energy gamma rays, but the earlier Compton mission did not.
An orbiting observatory has spotted a massive cluster of galaxies in deep space that can only be explained by the exotic phenomenon known as dark energy, the European Space Agency (ESA) said on Monday.
 
 
 
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