News tagged with black holes

What are white holes?

Black holes are created when stars die catastrophically in a supernova. So what in the universe is a white hole?

dateOct 09, 2015 in Astronomy
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The golden anniversary of black-hole singularity

When a star collapses forming a black hole, a space-time singularity is created wherein the laws of Physics no longer work. In 1965 Sir Roger Penrose presented a theorem where he associated that singularity with so-called ...

dateOct 01, 2015 in Astronomy
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When black holes collide

Picture the scene: two gigantic black holes, each one a good fraction of the size of our Solar System spiralling around each other. Closer and closer they draw until they touch and merge into a single, even more gigantic ...

dateSep 29, 2015 in Astronomy
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11-year cosmic search leads to black hole rethink

One hundred years since Einstein proposed gravitational waves as part of his general theory of relativity, an 11-year search performed with CSIRO's Parkes telescope has failed to detect them, casting doubt on our understanding ...

dateSep 24, 2015 in Astronomy
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Black hole is 30 times expected size

The central supermassive black hole of a recently discovered galaxy is far larger than should be possible, according to current theories of galactic evolution. New work, carried out by astronomers at Keele University and ...

dateSep 24, 2015 in Astronomy
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