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NASA's Chandra X-ray Observatory

Was Kepler's Supernova Unusually Powerful?

11 Sep 2012, 16:25 UTC
Was Kepler's Supernova Unusually Powerful? X-ray: NASA/CXC/SAO/D.Patnaude, Optical: DSS

In 1604, a new star appeared in the night sky that was much brighter than Jupiter and dimmed over several weeks. This event was witnessed by sky watchers including the famous astronomer Johannes Kepler.

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