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Tag Archives: Black Holes

Chandra and XMM-Newton provide direct measurement of distant black hole’s spin

Multiple images of a distant quasar

Astronomers have used NASA’s Chandra X-ray Observatory and the European Space Agency’s (ESA’s) XMM-Newton to show a supermassive black hole six billion light years from Earth is spinning extremely rapidly. This first direct measurement of the spin of such a distant black hole is an important advance for understanding how ...

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First Black Hole Orbiting a ‘Spinning’ Star

First Black Hole Orbiting a 'Spinning' Star

Spanish scientists have discovered the first binary system ever known to consist of a black hole and a ‘spinning’ star — or more accurately, a Be-type star. Although predicted by theory, none had previously been found. The observations that led to the discovery were performed with the Liverpool and Mercator ...

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Do Black Holes Have ‘Hair’? New Hypothesis Challenges ‘Clean’ Model

Unusual Mars Rock: Pyramid-Shaped Volcanic Rock

A black hole. A simple and clear concept, at least according to the hypothesis by Roy Kerr, who in 1963 proposed a “clean” black hole model, which is the current theoretical paradigm. From theory to reality things may be quite different. According to a new research carried out by a ...

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