News tagged with black holes

The entropy of black holes

Yesterday I talked about black hole thermodynamics, specifically how you can write the laws of thermodynamics as laws about black holes. Central to the idea of thermodynamics is the property of entropy, which c ...

Sep 12, 2014
4.7 / 5 (20) 12

The distant cosmos as seen in the infrared

(Phys.org) —At some stage after its birth in the big bang, the universe began to make galaxies. No one knows exactly when, or how, this occurred. For that matter, astronomers do not know how the lineages ...

Apr 12, 2013
5 / 5 (17) 52 | with audio podcast

Black holes don't make a big splash

(Phys.org) —Throughout our universe, tucked inside galaxies far, far away, giant black holes are pairing up and merging. As the massive bodies dance around each other in close embraces, they send out gravitational ...

Nov 07, 2013
4.5 / 5 (19) 19 | with audio podcast

Birth of black hole kills the radio star

Astronomers led by a Curtin University researcher have discovered a new population of exploding stars that "switch off" their radio transmissions before collapsing into a Black Hole.

Dec 20, 2013
4.4 / 5 (19) 6 | with audio podcast

Could we harvest energy from a star?

Our civilization will need more power in the future. Count on it. The ways we use power today: for lighting, transportation, food distribution and even entertainment would have sounded hilarious and far fetched ...

Feb 04, 2014
3.6 / 5 (23) 40

The search for seeds of black holes

(Phys.org) —How do you grow a supermassive black hole that is a million to a billion times the mass of our sun? Astronomers do not know the answer, but a new study using data from NASA's Wide-field Infrared ...

Mar 27, 2014
4.3 / 5 (19) 41