(AP) -- Billionaire John Malone's Liberty Media Corp. said Tuesday that it will spend $650 million to increase its effective control of satellite radio company Sirius XM Radio Inc. to 45.2 percent.
Business
May 8, 2012
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A stream of highly charged particles from the sun is headed straight toward Earth, threatening to plunge cities around the world into darkness and bring the global economy screeching to a halt.
Space Exploration
May 8, 2012
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(PhysOrg.com) -- For the first time, instrumentation aboard two NASA missions operating from complementary vantage points watched as a powerful solar storm spewed a two million-mile-per-hour stream of charged particles and ...
Space Exploration
Mar 28, 2012
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The largest solar storm in five years was due to arrive on Earth early Thursday, promising to shake the globe's magnetic field while expanding the Northern Lights.
Space Exploration
Mar 7, 2012
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(PhysOrg.com) -- Two studies appearing in the Aug. 25 issue of the journal Nature provide new insights into a cosmic accident that has been streaming X-rays toward Earth since late March. NASA's Swift satellite first alerted ...
Astronomy
Aug 24, 2011
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Researchers at the University of Illinois have become the first to record an airglow signature in the upper atmosphere produced by a tsunami using a camera system based in Maui, Hawaii.
Earth Sciences
Jul 14, 2011
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Developed nations have become "dangerously over-reliant" on satellite navigation systems such as GPS, which could break down or be attacked with devastating results, British engineers said Tuesday.
Telecom
Mar 8, 2011
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(PhysOrg.com) -- Cheaper, lighter and more energy-efficient broadband devices on communications satellites may be possible using metamaterials to modify horn antennas, according to engineers from Penn State and Lockheed Martin ...
Engineering
Jan 31, 2011
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Just a short call and the "Kidfinder" lets you know where your child is right now via SMS. It can be built into a game console and the locating unit even combines GPS position fixing with GSM tracking. In the best-case scenario, ...
Engineering
Oct 1, 2010
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The shrinking technology of cell phones, laptops and cameras are now leading to palm-sized satellites. Easy to build and affordable, these small satellites offer a new way to conduct astrobiology research. They also could ...
Space Exploration
Jul 12, 2010
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