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NGC 6357: Cosmic 'winter' wonderland

Although there are no seasons in space, this cosmic vista invokes thoughts of a frosty winter landscape. It is, in fact, a region called NGC 6357 where radiation from hot, young stars is energizing the cooler gas in the cloud ...

dateDec 19, 2016 in Astronomy
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Colliding galaxy clusters

Galaxy clusters contain a few to thousands of galaxies and are the largest bound structures in the universe. Most galaxies are members of a cluster. Our Milky Way, for example, is a member of the "Local Group," a set of about ...

dateDec 05, 2016 in Astronomy
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