Sep 1, 2019

A Tour of the Latest Look at “First Light” from Chandra

Posted by in category: cosmology

Twenty years ago, NASA’s orbiting Chandra X-ray Observatory beamed back its stunning “First Light” image of Cassiopeia A – but it’s still been checking back in every now and then.

Here’s how the supernova remnant has shifted and flowed in the two decades since go.nasa.gov/30AaeLr

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