Tuesday, 12 December 2017

Chandra Reveals the Elementary Nature of Cassiopeia A


Due to its unique evolutionary status, Cassiopeia A (Cas A) is one of the most intensely studied of these supernova remnants. via NASA http://ift.tt/2C6ofVz

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An Eye-catching Star Cluster

Westerlund 1 is the biggest and closest “super” star cluster to Earth. Data from Chandra and other telescopes are helping astronomers delve...