Black hole confirmed in Milky Way (BBC News)

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Black hole confirmed in Milky Way

By Pallab Ghosh
Science correspondent, BBC News


The Milky Way was tracked from an observatory in Chile

There is a giant black hole at the centre of our galaxy, a study has confirmed.

German astronomers tracked the movement of 28 stars circling the centre of the Milky Way, using two telescopes in Chile.

The black hole is four million times more massive than our Sun, according to the paper in The Astrophysical Journal.

Black holes are objects whose gravity is so great that nothing - including light - can escape them.

According to Dr Robert Massey, of the Royal Astronomical Society (RAS), the results suggest that galaxies form around giant black holes in the way that a pearl forms around grit.

'The black pearl'

Dr Massey said: "Although we think of black holes as somehow threatening, in the sense that if you get too close to one you are in trouble, they may have had a role in helping galaxies to form - not just our own, but all galaxies.

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Full article at: http://news.bbc.co.uk/2/hi/science/nature/7774287.stm


 

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