News tagged with supermassive black holes

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How often do giant black holes become hyperactive?

(PhysOrg.com) -- A new study from NASA's Chandra X-ray Observatory tells scientists how often the biggest black holes have been active over the last few billion years. This discovery clarifies how supermassive ...

Dec 20, 2010
5 / 5 (7) 19 | with audio podcast

Scientists glimpse universe before the Big Bang

(PhysOrg.com) -- In general, asking what happened before the Big Bang is not really considered a science question. According to Big Bang theory, time did not even exist before this point roughly 13.7 billion ...

Nov 23, 2010 weblog
4.7 / 5 (108) 174 | with audio podcast

Black Hole Gets Jerked Around -- Twice

(PhysOrg.com) -- Scientists have found evidence that a giant black hole has been jerked around twice, causing its spin axis to point in a different direction from before. This discovery, made with new data ...

Jul 21, 2010
4.6 / 5 (14) 4 | with audio podcast

Backwards Black Holes Might Make Bigger Jets

(PhysOrg.com) -- Going against the grain may turn out to be a powerful move for black holes. New research suggests supermassive black holes that spin backwards might produce more ferocious jets of gas. The ...

Jun 01, 2010
4.3 / 5 (13) 20 | with audio podcast

Supermassive black hole is thrown out of galaxy

(PhysOrg.com) -- Undergraduate student Marianne Heida of the University of Utrecht has found what appears to be a supermassive black hole leaving its home galaxy at high speed. As part of an international ...

May 11, 2010
4.7 / 5 (38) 15 | with audio podcast

M82: 'Survivor' Black Holes May Be Mid-Sized

(PhysOrg.com) -- New evidence from NASA's Chandra X-ray Observatory and ESA's XMM-Newton strengthens the case that two mid-sized black holes exist close to the center of a nearby starburst galaxy. These "survivor" ...

Apr 29, 2010
4 / 5 (5) 4 | with audio podcast