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Rare Star Explosion Reveals Hidden Black Hole

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#1    Child of Bast

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Posted 23 October 2012 - 02:21 PM


Astronomers have spotted a rare X-ray star explosion near the center of our Milky Way Galaxy, revealing a previously unknown black hole munching on gas from a neighboring sun-like star.
NASA's Swift satellite made the cosmic find last month when it detected a new and rapidly brightening X-ray source a few degrees from the galactic center of the Milky Way. Astronomers identified the outburst as a short-lived bright X-ray nova, which is produced when a stream of gas rushes toward either a neutron star or a black hole. Unlike a supernova, which is the explosive death of a star, novas are smaller explosions that do not completely destroy a star.

The black hole is thought to be 20,000 to 30,000 light-years away in the galaxy's inner region. Astronomers, who named the bright X-ray nova Swift J1745-26 after its coordinates in space, said witnessing such an event is rare.

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#2    Ashotep


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Posted 23 October 2012 - 02:58 PM

Interesting story, thanks for posting.  Just wait until our sun explodes, hope I'm not around.

#3    Waspie_Dwarf


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Posted 23 October 2012 - 06:16 PM

View PostHilander, on 23 October 2012 - 02:58 PM, said:

Just wait until our sun explodes, hope I'm not around.
Our sun won't explode, it's far too small to become a supernova.

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#4    ranrod


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Posted 23 October 2012 - 07:09 PM

View PostWaspie_Dwarf, on 23 October 2012 - 06:16 PM, said:

Our sun won't explode, it's far too small to become a supernova.
The expansion of the sun will be no better for Earth than if it exploded.
...Since black holes are virtually invisible, I was very afraid when young, that we were headed straight towards one and didn't know it.

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