Friday, November 6, 2009

Vast Stars Fed Biggest Black Holes

Supermassive black holes are found at the centre of galaxies. Credit: NASA/JPL-Caltech

From Cosmos:

SYDNEY: Stars more than one million times as massive as the Sun may be more stable than astronomers thought, and have created seeds that grew into the largest supermassive black holes.

Supermassive black holes are found at the centre of most galaxies, including our own Milky Way. Theories about their formation range from collapsing clouds of gas to collisions between smaller black holes.

Astrophysicists have also suggested that supermassive black holes could have formed from the catastrophic collapse of incredibly large stars that were one million to one billion times the mass of the Sun.

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