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Three scientists have won the Nobel prize in physics for their work on black hole formation and the discovery of a supermassive black hole at the centre of our galaxy. Mysterious, exciting and inescapable, black holes form when an enormous mass is squashed into a small space, as occurs when massive stars collapse. The result is an object where gravity is so strong that a one-way street is formed; not even light can escape, meaning black holes are invisible, while to distant observers time appears to stand still in the region surrounding it that is known as the event horizon.
Among subsequent work, Penrose ed forces with Stephen Hawking, and produced new ideas on when gravitational singularities are formed — these are points of infinite density as found in the centre of black holes. Together, Genzel and Ghez were honoured for work in which they turned telescopes on our own galaxy and discovered, by looking at the motions of stars, evidence of a supermassive object in the centre of the Milky Way, an object that experts say can only be a black hole.
But this is not just an old adventure coming to its triumphant conclusion, it is a new one beginning. As we probe ever closer to the horizons of the black holes, nature might have new surprises in store.
Ghez, only the fourth woman to be awarded a Nobel prize in physics, said she was thrilled. The announcement of the winners was delayed, the committee said, due to difficulties in contacting the winners.
But, somewhat sheepishly, he added that the win was likely to disturb his current work for a few days. Dr Ziri Younsi, of University College London, an expert on black holes, was enthusiastic about the news. Nobel prizes. This article is more than 9 months old.
Roger Penrose leftwho receives half the prize; and Andrea Ghez and Reinhard Genzel, who share the other half. Nicola Davis Science correspondent.
Tue 6 Oct Black hole picture captured for first time in space breakthrough. Reuse this content.Saint Michaels norwegian girls for black hole
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