X-rays Uncover Black Holes Dancing With Normal Stars
This photograph shows the flamboyant spiral galaxy called Messier 51. Each point of vivid purple light we are seeing glittering in this picture represents a special type of binary system. We call them ‘X-ray binaries’ because they are pairs of stars shining in X-ray light.
Credit:
NASA/CXC/Wesleyan Univ./R.Kilgard, et al/STScI
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