Quantcast

Latest Fermi Gamma-ray Space Telescope Stories

448b1790f31c63cb591c96ff9315100d1
2009-01-28 17:02:03

The quick turn-around time of the INTEGRAL operation teams has enabled rare high-energy observations of a magnetar. The observations, which were performed as a Target of Opportunity, followed indications late last week that this magnetar, the Anomalous X-ray Pulsar, 1E 1547.0-5408, had entered outburst mode. 1E1547.0-5408 is one of only 9 confirmed Anomalous X-ray Pulsars (AXP) - isolated, young neutron stars with unusually strong magnetic fields (1014G -1015G). Together with Soft Gamma...

2009-01-06 15:00:00

GREENBELT, Md., Jan. 6 /PRNewswire-USNewswire/ -- NASA's Fermi Gamma-ray Space Telescope has discovered 12 new gamma-ray-only pulsars and has detected gamma-ray pulses from 18 others. The finds are transforming our understanding of how these stellar cinders work. (Logo: http://www.newscom.com/cgi-bin/prnh/20081007/38461LOGO) "We know of 1,800 pulsars, but until Fermi we saw only little wisps of energy from all but a handful of them," says Roger Romani of Stanford University, Calif....

cba632275d2aaedd0baa907942caf2f31
2008-11-19 13:45:00

An international team of researchers has discovered a puzzling surplus of high-energy electrons bombarding Earth from space. The source of these cosmic rays is unknown, but it must be close to the solar system and it could be made of dark matter. Their results are being reported in the Nov. 20th issue of the journal Nature. "This is a big discovery," says co-author John Wefel of Louisiana State University. "It's the first time we've seen a discrete source of accelerated cosmic rays standing...

6317c5a03460de68dc76284b88f854c9
2008-11-06 12:10:00

Scientists believe they may now have a better idea of where to search for dark matter thanks to the results of a giant computer simulation reported on Wednesday. Dark matter has puzzled scientists for about 75 years when they discovered its existence from its gravitational effects. The mysterious matter is considered to account for 85 percent of the universe's mass although it cannot be seen through telescopes. Researchers at the international Virgo Consortium, including cosmologists at...

807783f999224f21a2cf5a6069b5efa61
2008-10-23 06:40:00

Gamma-ray bursts are by far the brightest and most powerful explosions in the Universe, second only to the Big Bang itself. So it might seem a bit surprising that a group of them has gone missing. A single gamma-ray burst (GRB) can easily outshine an entire galaxy containing hundreds of billions of stars. Powerful telescopes can see them from clear across the Universe. And because the deeper you look into space, the farther back in time you see, astronomers should be able to see GRBs from the...

5b6e438b03e28054300103c0766878001
2008-10-21 10:54:04

For decades it was baffling. Out of the still night sky, astronomers peering through their telescopes would occasionally glimpse quick bursts of high-energy light popping off like flashbulbs at the far side of the universe. These bursts seemed impossibly powerful: to appear so bright from so very far away, they must vastly outshine entire galaxies containing hundreds of billions of stars. These explosions, called gamma ray bursts (GRBs), are by far the brightest and most energetic phenomena...

98b773750a00d689e4c2724e1bcecea81
2008-10-17 08:50:00

People of the 'Deep South' love a good story and they're about to get a doozy. It begins next week when researchers from 25 countries converge on Huntsville, Alabama, to share the latest findings on the biggest explosions since the Big Bang itself. The 6th Huntsville Gamma-ray Burst Symposium 2008 convenes Oct. 20th and the talking won't stop for four straight days. One speaker after another will take the audience on a wild ride from the edge of the observable Universe, where gamma-ray bursts...

319f4143ecc2819eae60c8425d965ee81
2008-10-16 14:10:00

About three times a second, a 10,000-year-old stellar corpse sweeps a beam of gamma-rays toward Earth. Discovered by NASA's Fermi Gamma-ray Space Telescope, the object, called a pulsar, is the first one known that only "blinks" in gamma rays. "This is the first example of a new class of pulsars that will give us fundamental insights into how these collapsed stars work," said Stanford University's Peter Michelson, principal investigator for Fermi's Large Area Telescope in Palo Alto, Calif. The...

2008-09-17 12:00:08

FAIRFAX, Va., Sept. 17 /PRNewswire/ -- General Dynamics Advanced Information Systems, a business unit of General Dynamics , has successfully completed the Launch and Early Orbit Phase (LEOP) of NASA's Fermi Gamma-ray Space Telescope. Fermi, previously known as the Gamma-ray Large Area Space Telescope or GLAST, is a next-generation high-energy gamma-ray satellite designed to make observations of celestial gamma-ray sources. NASA recently renamed the satellite in honor of Prof. Enrico Fermi...

e70d1c8f2782c07e11b81d9cbfdbd0b71
2008-08-26 15:40:00

WASHINGTON -- NASA's newest observatory, the Gamma-Ray Large Area Space Telescope, or GLAST, has begun its mission of exploring the universe in high-energy gamma rays. The spacecraft and its revolutionary instruments passed their orbital checkout with flying colors. NASA announced today that GLAST has been renamed the Fermi Gamma-ray Space Telescope. The new name honors Prof. Enrico Fermi (1901 - 1954), a pioneer in high-energy physics. "Enrico Fermi was the first person to suggest how...


Word of the Day
grass-comber
  • A landsman who is making his first voyage at sea; a novice who enters naval service from rural life.
According to the OED, a grass-comber is also 'a sailor's term for one who has been a farm-labourer.'