Add Yahoo as a preferred source to see more of our stories on Google. An artist's impression of the accretion disk around the compact object in the X-ray binary system Cygnus X-3, showing the X-rays ...

When you buy through links on our articles, Future and its syndication partners may earn a commission. An illustration of the black hole binary system Cygnus X-3 compact object likely a black hole and ...

Since its discovery 45 years ago, Cygnus X-1 has been one of the most intensively studied cosmic X-ray sources. About a decade after its discovery, Cygnus X-1 secured a place in the history of ...

Astronomers might need to adjust their expectations for black holes. According to the New York Times, an international research team has determined that Cygnus X-1, one of the first discovered black ...

A joint NASA/Italian space mission has put its sunglasses on to observe polarized X-ray light from a corona of hot gas around the Cygnus X-1 black hole. When you purchase through links on our site, we ...

Einstein first predicted the existence of black holes when he published his theory of general relativity in 1916, describing how gravity shapes the fabric of spacetime. But astronomers didn’t spot one ...

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