News tagged with ray sources
Fermi Large Area Telescope Reveals Pulsing Gamma-Ray Sources
Sep 22, 2009 |
4.7 / 5 (6) |
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(PhysOrg.com) -- Scientists at the Naval Research Laboratory Space Science Division and a team of international researchers have positively identified cosmic sources of gamma-ray emissions through the discovery ...
GLAST Observatory reveals entire gamma-ray sky
Aug 26, 2008 |
4.8 / 5 (21) |
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(PhysOrg.com) -- NASA's newest space telescope is giving scientists their best look yet at the highest-energy gamma ray bursts generated by violent events in space. For Toby Burnett, a University of Washington ...
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Accelerators and Light Sources of Tomorrow (Part 1: From Linacs to Lasers)
Dec 22, 2009 |
4.6 / 5 (5) |
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From their humble beginnings as offshoots of the ordinary electric light bulb, particle accelerators have evolved in surprising directions. Among the most productive and promising developments have been light ...
Physicists see through the opaque with 'T-rays'
Dec 18, 2009 |
4.2 / 5 (11) |
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"T-rays" may make X-rays obsolete as a means of detecting bombs on terrorists or illegal drugs on traffickers, among other uses, contends a Texas A&M physicist who is helping lay the theoretical groundwork to make the concept ...
XMM-Newton celebrates decade of discovery
Space & Earth / Space Exploration
Dec 09, 2009 |
5 / 5 (2) |
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(PhysOrg.com) -- ESA's XMM-Newton X-ray observatory is celebrating its 10th anniversary. During its decade of operation, this remarkable space observatory has supplied new data for every aspect of astronomy. ...
Cosmic rays hunted down: Physicists are closing in on the origin of cosmic rays
Dec 07, 2009 |
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(PhysOrg.com) -- A thin rain of charged particles continually bombards our atmosphere from outer space. The mysterious particles were first detected 100 years ago but until 10 years ago when a new type of ...
Fine-tuned: A wholly new approach to tuning a laser's frequency
Dec 04, 2009 |
4.5 / 5 (10) |
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(PhysOrg.com) -- For more than 30 years, scientists have been trying to harness the power of terahertz radiation. Tucked between microwaves and infrared rays on the electromagnetic spectrum, terahertz rays ...
Researchers find long awaited key to creating drought resistant crops
Dec 03, 2009 |
4 / 5 (1) |
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Van Andel Research Institute (VARI) researchers have determined precisely how the plant hormone abscisic acid (ABA) works at the molecular level to help plants respond to environmental stresses such as drought and cold. ...
Will 2010 be the breakout year for e-book readers?
Electronics / Consumer & Gadgets
Dec 03, 2009 |
3.2 / 5 (5) |
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When Sheila Effan found a Kindle electronic reader among her gifts last Christmas, one of her first thoughts was whether she would miss the smell and feel of real paper. She got her answer five months later.
It takes two to infect: Structural biologists shed light on mechanism of invasion protein
Nov 30, 2009 |
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Bacteria are quite creative when infecting the human organism. They invade cells, migrate through the body, avoid an immune response and misuse processes of the host cell for their own purposes. To this end every bacterium ...
Fermi Telescope Peers Deep into Microquasar (w/ Video)
Nov 27, 2009 |
4.8 / 5 (17) |
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(PhysOrg.com) -- NASA's Fermi Gamma-ray Space Telescope has made the first unambiguous detection of high-energy gamma-rays from an enigmatic binary system known as Cygnus X-3. The system pairs a hot, massive ...
Computational microscope peers into the working ribosome (w/ Video)
Nov 23, 2009 |
4.9 / 5 (9) |
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Two new studies reveal in unprecedented detail how the ribosome interacts with other molecules to assemble new proteins and guide them toward their destination in biological cells. The studies used molecular ...
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