News tagged with black holes

How fast do black holes spin?

There is nothing in the Universe more awe inspiring or mysterious than a black hole. Because of their massive gravity and ability to absorb even light, they defy our attempts to understand them. All their ...

Feb 14, 2014
4.8 / 5 (32) 27

Centaurus A: A new look at an old friend

(Phys.org) —Just weeks after NASA's Chandra X-ray Observatory began operations in 1999, the telescope pointed at Centaurus A (Cen A, for short). This galaxy, at a distance of about 12 million light-years ...

Feb 06, 2014
4.9 / 5 (20) 49 | 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

Dead star and distant black holes dazzle in X-rays

(Phys.org) —Two new views from NASA's Nuclear Spectroscopic Telescope Array, or NuSTAR, showcase the telescope's talent for spying objects near and far. One image shows the energized remains of a dead star, ...

Jan 09, 2014
4.7 / 5 (7) 0 | with audio podcast

A galaxy with two hearts

This new Hubble image shows the spiral galaxy Messier 83, otherwise known as the Southern Pinwheel Galaxy. One of the largest and closest barred spirals to us, this galaxy is dramatic and mysterious; it has ...

Jan 09, 2014
4.7 / 5 (9) 5

A rare crash at the Milky Way's core

(Phys.org) —University of Michigan astronomers could be the first to witness a rare collision expected to happen at the center of the galaxy by spring.

Jan 09, 2014
4.8 / 5 (26) 17 | with audio podcast

Swift catches X-ray action at Milky Way's center

(Phys.org) —Recent observations by NASA's Swift spacecraft have provided scientists a unique glimpse into the activity at the center of our galaxy and led to the discovery of a rare celestial entity that ...

Jan 08, 2014
4.5 / 5 (11) 0 | with audio podcast