View Full Version : Amazing New X-Ray Image of the Whirlpool Galaxy Shows it is Dotted with Black Holes

2014-Jun-03, 10:21 PM
In the Milky Way there’s a single X-ray binary — a system consisting of a black hole capturing and heating material from an orbiting companion star — known as Cygnus X-1. But 30 million light-years away in the Whirlpool galaxy, M51, there are hundreds of X-ray points of light and a full 10 X-ray binaries. […]

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