Quantcast

Latest Supermassive black holes Stories

2011-10-11 09:28:03

Astrophysicists have found evidence of black holes destroying stars, a long-sought phenomenon that provides a new window into general relativity.

Supermassive Black Holes Found In Small Galaxies
2011-09-16 10:49:27

With the help of the Hubble Space Telescope, researchers have discovered supermassive black holes growing in shockingly small galaxies.

da65bde450525fa814375f69a65ecc4f
2011-07-21 08:11:24

Whether on their own or orbiting as a pair, black holes don’t typically sit still.

6f770b9c7972d3b8b5618be889e56b30
2011-07-13 06:35:00

Most of the huge black holes in the centers of galaxies in the past 11 billion years were not turned on by mergers between galaxies, as had been previously thought.

2011-06-15 12:00:00

WASHINGTON, June 15, 2011 /PRNewswire-USNewswire/ -- Using the deepest X-ray image ever taken, astronomers found the first direct evidence that massive black holes were common in the early universe.

765aedf411931bce79bb1e86c0f8f393
2011-06-13 14:22:44

Portrayed in movies and on television most often as gateways to another dimension or cosmic vacuum cleaners sucking up everything in sight, the misconceptions surrounding black holes are many and varied.

c41a4acf60021c99dad0f0e13a905306
2011-05-23 07:35:00

Two UK astronomers have found that the giant black holes in the center of galaxies are on average spinning faster than at any time in the history of the Universe.

dbd0f2af738f5f1d299e4c5d1da24f7f1
2011-04-10 06:35:00

A galaxy's core is a busy place, crowded with stars swarming around an enormous black hole.

710aba3b6aa2e97f6992c882f13a5c461
2011-02-25 11:55:00

When two galaxies merge to form a giant, the central supermassive black hole in the new galaxy develops an insatiable appetite.


Latest Supermassive black holes Reference Libraries

6_8304cd2002012eb0093845e374a1b9612
2004-10-19 04:45:42

Supermassive Black Hole -- A Supermassive black hole is a black hole with a mass in the range of millions or billions solar masses. A supermassive black hole has some interesting properties differing from his low-mass cousins: -- The average density of a supermassive black hole can be very low, and actually can be lower than water's density. This happens because the black hole diameter increases linearly with mass, and consequently density drops much faster. -- Strong tidal...

6_c7a74d948ad4cfdc1dd54ceada2509fb2
2004-10-19 04:45:42

Seyfert Galaxy -- Seyfert galaxies are spiral or irregular galaxies containing an extremely bright nucleus, most likely caused by a supermassive black hole, that can sometimes outshine the surrounding galaxy. The light from the central nucleus varies in less than a year, which implies that the emitting region must be less than one light year across. They are named for the astronomer Carl Seyfert, who studied them extensively in the 1940s. They are a subclass of active galactic nuclei....

6_0ba47eab12382e6a4e2cc12b1c7ddf782
2004-10-19 04:45:42

Quasar -- A quasar (from quasi-stellar radio source) is an astronomical object that looks like a star in optical telescopes (i.e. it is a point source), but has a very high redshift. The general consensus is that this high redshift is cosmological, the result of Hubble's law and that their redshift indicates that they are typically very distant from Earth; we observe them as they were several billions of years ago. Since we can see them despite their distance, they must emit more...

More Articles (3 articles) »
Word of the Day
ecotone
  • A transitional zone between two communities containing the characteristic species of each.
The word 'ecotone' comes 'eco-' plus a Greek root meaning 'tension'.