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Cosmic rays hunted down: Physicists are closing in on the origin of cosmic rays

Cosmic rays hunted down: Physicists are closing in on the origin of cosmic rays

Space & Earth / Astronomy

created Dec 07, 2009 | popularity 4.4 / 5 (11) | comments 4

(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 ...


Fermi sees brightest-ever blazar flare

Fermi sees brightest-ever blazar flare

Space & Earth / Astronomy

created Dec 09, 2009 | popularity 4.3 / 5 (9) | comments 3

(PhysOrg.com) -- A galaxy located billions of light-years away is commanding the attention of NASA's Fermi Gamma-ray Space Telescope and astronomers around the globe. Thanks to a series of flares that began ...


Lightning

Lightning-produced radiation a potential health concern for air travelers

Space & Earth / Earth Sciences

created Dec 07, 2009 | popularity 3.8 / 5 (10) | comments 7

New information about lightning-emitted X-rays, gamma rays and high-energy electrons during thunderstorms is prompting scientists to raise concerns about the potential for airline passengers and crews to be ...


Swift spacecraft

Magnetic Power Revealed in Gamma-Ray Burst Jet

Space & Earth / Astronomy

created Dec 09, 2009 | popularity 4.1 / 5 (9) | comments 7

(PhysOrg.com) -- A specialized camera on a telescope operated by U.K. astronomers from Liverpool has made the first measurement of magnetic fields in the afterglow of a gamma-ray burst (GRB). The result is ...


XMM-Newton celebrates decade of discovery

XMM-Newton celebrates decade of discovery

Space & Earth / Space Exploration

created Dec 09, 2009 | popularity 5 / 5 (2) | comments 0

(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. ...