NASA’s Swift Reveals a Black Hole Bull’s-eye

What looks like a shooting target is actually an image of nested rings of X-ray light centered on an erupting black hole. On June 15, NASA’s Swift satellite detected the start of a new outburst from V404 Cygni, where a black hole and a sun-like star orbit each other. Since then, astronomers around the world […]

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Black hole winds pull the plug on star formation

Black-hole wind sweeping away galactic gas Astronomers using ESA’s Herschel space observatory have found that the winds blowing from a huge black hole are sweeping away its host galaxy’s reservoir of raw star-building material. Found at the hearts of most galaxies, supermassive black holes are extremely dense and compact objects with masses between millions and […]

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