Welcome to DU! The truly grassroots left-of-center political community where regular people, not algorithms, drive the discussions and set the standards. Join the community: Create a free account Support DU (and get rid of ads!): Become a Star Member Latest Breaking News General Discussion The DU Lounge All Forums Issue Forums Culture Forums Alliance Forums Region Forums Support Forums Help & Search

NNN0LHI

(67,190 posts)
Sun Jan 29, 2012, 01:17 PM Jan 2012

Astronomers are hoping to photograph a black hole for the first time

http://www.koreatimes.co.kr/www/news/opinon/2012/01/160_103646.html

Massive 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.

4 replies = new reply since forum marked as read
Highlight: NoneDon't highlight anything 5 newestHighlight 5 most recent replies
Astronomers are hoping to photograph a black hole for the first time (Original Post) NNN0LHI Jan 2012 OP
have they tested them yet? bigtree Jan 2012 #1
Astonomers see a black hole devour a star - reported at this link: Jumping John Jan 2012 #2
Sadly, they did not see it as well as illustrated in MineralMan Jan 2012 #4
I guess they haven't seen any of the republican debates thelordofhell Jan 2012 #3
 

Jumping John

(930 posts)
2. Astonomers see a black hole devour a star - reported at this link:
Sun Jan 29, 2012, 01:28 PM
Jan 2012

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
Sun Jan 29, 2012, 01:39 PM
Jan 2012

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
Sun Jan 29, 2012, 01:34 PM
Jan 2012

That huge black hole of suck has been photographed constantly

Latest Discussions»General Discussion»Astronomers are hoping to...