Quantcast

Latest Gamma-ray burst Stories

98ff7ead7bcda38101a926a989c344091
2010-11-09 14:20:00

NASA's Fermi Gamma-ray Space Telescope has unveiled a previously unseen structure centered in the Milky Way.

6ed73c3134c7fc84b775c272eb9cfeae1
2010-11-04 09:15:12

A gamma-ray burst is an immensely powerful blast of high-energy light thought to be generated by a collapsing star in a distant galaxy, but what this collapse leaves behind has been a matter of debate.

069e738fd2351e0e58cdd94fd1e42993
2010-07-15 10:00:00

There are many cultural myths concerning black holes -- several of the myths are perpetuated by television and movies.

d68d944035da8d4ac6a889c994fc2c9c
2010-07-14 12:51:06

A blast of the brightest X-rays ever detected from beyond our Milky Way galaxy's neighborhood temporarily blinded the X-ray eye on NASA's Swift space observatory earlier this summer.

2010-05-05 14:20:00

GREENBELT, Md., May 5 /PRNewswire-USNewswire/ -- Dr. Neil Gehrels, an astrophysicist at NASA's Goddard Space Flight Center, has been elected into the National Academy of Sciences (NAS), an honor considered to be one of the highest awarded to scientists and engineers.

e9085ee10d9f74a354186c20e1aa6a4c1
2010-04-20 06:55:00

In its first five years in orbit, NASA's Swift satellite has given astronomers more than they could have hoped for.

bd840eb4b8f1a3a5f0d7d5404efdf86f1
2010-02-11 07:20:00

Instruments scanning outer space for cataclysmic explosions called gamma-ray bursts are detecting intense flashes of gamma-ray energy right here in the friendly skies of Earth.

2010-01-27 12:43:00

WASHINGTON, Jan. 27 /PRNewswire-USNewswire/ -- Astronomers studying two exploding stars, or supernovae, have found evidence the blasts received an extra boost from newborn black holes.

0df6c677b3752b72366b90f020a6aec51
2010-01-27 12:53:04

Astronomers studying two exploding stars, or supernovae, have found evidence the blasts received an extra boost from newborn black holes.

c0a0ddae1545d1fd59cebd3e781bf16e1
2010-01-27 12:44:30

For the first time, astronomers have found a supernova explosion with properties similar to a gamma-ray burst, but without seeing any gamma rays from it.


Latest Gamma-ray burst Reference Libraries

7_7ab115b117284658644e345b89f5ba712
2004-10-19 04:45:43

Gamma-Ray Astronomy -- Gamma-ray astronomy is the astronomical study of gamma rays. Long before experiments could detect gamma rays emitted by cosmic sources, scientists had known that the universe should be producing these photons. Work by Feenberg and Primakoff in 1948, Hayakawa and Hutchinson in 1952, and, especially, Morrison in 1958 had led scientists to believe that a number of different processes which were occurring in the universe would result in gamma-ray emission. These...

6_f3739d4b04b11a1c267bfcc286610ef92
2004-10-19 04:45:41

Hypernova -- A hypernova is a theoretical type of supernova produced when exceptionally large stars collapse at the end of their lifespan. In a hypernova, the core of the star collapses directly into a black hole and two extremely energetic jets of plasma are emitted from its rotational poles at nearly light speed. These jets emit intense gamma rays, and are a candidate explanation for gamma ray bursts. Theorists have come up with several plausible explanations for hypernovae. It may...

6_f5324ad7d5514381282c99963af8be7c2
2004-10-19 04:45:41

Gamma-Ray Burst -- In astronomy, Gamma-ray bursters (GRBs) are flashes of gamma rays that last from seconds to hours, the longer ones being followed by several days of X-ray afterglow. They occur at random positions in the sky several times each day. They are now believed to result from tremendous explosions in far away galaxies, during the creation of a black hole from a dying star or two colliding neutron stars. The black hole, surrounded by a rotating disk of matter falling into it,...

More Articles (3 articles) »
Word of the Day
megalophonous
  • Having a loud voice; vociferous; clamorous.
  • Of grand or imposing sound.
The word 'megalophonous' comes from Greek roots meaning 'big' and 'sound'.