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Related: Editorials & Other Articles, Issue Forums, Alliance Forums, Region ForumsAstronomers are hoping to photograph a black hole for the first time
http://www.koreatimes.co.kr/www/news/opinon/2012/01/160_103646.htmlMassive black hole gets ready for its close-up
01-29-2012 15:53
By Dale McFeatters
Black holes are perhaps the most powerful, least understood phenomenon in the universe, but no one has ever really seen one. Astronomers are hoping to photograph one for the first time by linking 50 radio telescopes around the world so that Earth becomes essentially a single giant radio telescope.
The project is called the Event Horizon Telescope, and it will be aimed at a black hole in our own Milky Way galaxy. This black hole is of "supermassive" size, 4 million times the mass of the sun. It is so far away ― almost 26,000 light-years ― that if it could be seen, astronomers say it would be about the size of a grapefruit on the moon.
Black holes, created when giant stars collapse in on themselves, have a gravity so dense that nothing caught up in them ― light, energy, matter ― escapes. Thus, astronomers won't see the actual black hole, but conclusive evidence of its presence ―the dust and gas circling around the hole, like water circling the drain in a bathtub, explained one.
As the matter circles and becomes ever more compressed, it will be heated to a billion degrees or more, creating a "glow" outlining the black hole that can be detected from Earth.
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Astronomers are hoping to photograph a black hole for the first time (Original Post)
NNN0LHI
Jan 2012
OP
bigtree
(85,986 posts)1. have they tested them yet?
. . . any projects leading up to this one that they all participated in?
Jumping John
(930 posts)2. Astonomers see a black hole devour a star - reported at this link:
This is not a black hole forming after a star collapses but it is an occurrence of once in a lifetime event that astronomers were lucky enough to observe.
http://discovermagazine.com/2012/jan-feb/14
MineralMan
(146,286 posts)4. Sadly, they did not see it as well as illustrated in
the image. It may have looked much like that, though.
thelordofhell
(4,569 posts)3. I guess they haven't seen any of the republican debates
That huge black hole of suck has been photographed constantly