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US astronomers spot massive, record-setting stellar-mass black hole

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US astronomers spot massive, record-setting stellar-mass black hole

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WASHINGTON (AFP) - US astronomers have discovered the biggest black hole orbiting a star 1.8 million light-years from Earth in the constellation Cassiopeia, with a record-setting mass of 24 to 33 times that of our Sun, NASA said Tuesday.

The massive newcomer beats the previous stellar-mass black hole discovered October 17 in the M33 galaxy that has 16 times the mass of our Sun, the US space agency said.

Like the much larger, supermassive black holes found at galaxy centers, stellar-mass black holes have such powerful gravity fields that not even light can escape them. Astronomers estimate their mass by measuring their gas emissions and the gravitational effect on the stars they orbit.

http://news.yahoo.com/s/afp/20071031/sc_afp/usastronomy2_071031201428

My Thoughts

This is really great in the field of Astronomy! What can I say?
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