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Latest Gamma-ray astronomy Stories

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2008-11-02 10:10:00

Thanks to ESA and UK technology transfer support, a British company has developed a device based on the gamma-ray detection equipment used in ESA's Integral astronomy satellite to detect and identify the radioactive material mixed with conventional explosives in "Ëœdirty bombs'. ESA has supported the development of technology for gamma-ray astronomy for more than 40 years. Integral, ESA's International Gamma-Ray Astrophysics Laboratory launched in 2002, is now detecting some of the...

2008-06-19 15:00:05

The U.S. space agency says its newest space telescope, the Gamma-ray Large Area Space Telescope, or GLAST, is in the process of being activated. The Delta II rocket carrying GLAST lifted off June 11 from launch pad 17-B at the Cape Canaveral Air Force Station in Florida. It is in orbit approximately 350 miles above the Earth and running well, officials said. The National Aeronautics and Space Administration said its engineers for the next month, will be busy turning on and checking the...

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2008-06-11 13:00:00

Today, NASA's Gamma-ray Large Area Space Telescope (GLAST for short) left Earth onboard a Delta II rocket. "The entire GLAST Team is elated," reported program manager Kevin Grady of NASA's Goddard Space Flight Center shortly after the rocket's liftoff from Cape Canaveral. "The observatory is now on-orbit and all systems continue to operate as planned." What is NASA's newest space telescope going to accomplish? GLAST will explore the most extreme environments in the universe, searching for...

2008-02-16 14:18:21

UK space scientist Emeritus Professor Alan Wells is to speak at the American Association for the Advancement of Science (AAAS) in Boston in February on: International Cooperation in Developing Swift and its Scientific Achievements. Professor Wells' presentation will be on Saturday 16th February at around 11.00 a.m. as part of a symposium entitled: Worldwide Hunt to Solve the Mystery of Gamma-Ray Bursts. In it, he will discuss the breadth of international collaborations, including the...

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2008-01-25 09:20:00

From mother Earth, the night sky can look peaceful and unchanging, but the universe as seen in gamma-rays is a place of sudden and chaotic violence. Using gamma-ray telescopes, astronomers witness short but tremendously intense explosions called gamma-ray bursts, and there is nothing more powerful. No one is sure what causes gamma-ray bursts. Favored possibilities include the collision of two neutron stars or a sort of super-supernova that occurs when extremely massive stars explode. One...

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2007-11-29 17:57:28

GREENBELT, Md. - NASA's Gamma-ray Large Area Space Telescope (GLAST) has arrived at the Naval Research Laboratory (NRL) in Washington for its final round of testing. The GLAST spacecraft has successfully completed two of its three environmental tests at the prime contractor, General Dynamics Advanced Information Systems in Gilbert, Ariz. These tests included exposure to extreme vibrations and electromagnetic fields. "We've completed two of the big three tests, and now we're going to the NRL...

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2007-10-17 14:55:00

With eyes that peer into the most energetic phenomena in the universe, ESA's Integral has been setting records, discovering the unexpected and helping understanding the unknown over its first five years. Integral was launched on 17 October 2002. Since then, the satellite has helped scientists make great strides in understanding the gamma-ray universe - from the atoms that make up all matter, giant black holes, mysterious gamma-ray bursts to the densest objects in the universe.  The...

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2007-04-11 10:13:52

NASA's next major space observatory, the Gamma-ray Large Area Space Telescope (GLAST), is one step closer to unveiling the mysteries of the high-energy universe. Almost all the components have been assembled onto the spacecraft, which will undergo a review this week before environmental testing begins at the primary contractor, General Dynamics Advanced Information Systems in Gilbert, Ariz. GLAST will study the universe's most extreme objects, observing physical processes far beyond the...

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2007-03-21 09:30:00

Mechanism explains how the most energetic form of light can be produced in areas dominated by bright, young stars In 2002, when astronomers first detected cosmic gamma rays -- the most energetic form of light known -- coming from the constellation Cygnus they were surprised and perplexed. The region lacked the extreme electromagnetic fields that they thought were required to produce such energetic rays. But now a team of theoretical physicists propose a mechanism that can explain this...

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2007-02-20 15:20:00

Integral's latest survey of the gamma-ray universe continues to change the way astronomers think of the high-energy cosmos. With over seventy percent of the sky now observed by Integral, astronomers have been able to construct the largest catalogue yet of individual gamma-ray-emitting celestial objects. And there is no end in sight for the discoveries. Integral is the European Space Agency's latest orbiting gamma-ray observatory. Ever since Integral began scientific operations in 2003,...


Latest Gamma-ray astronomy 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...

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