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Satellite Communications By Laser Looks Promising
May 13, 2008 Satellites currently use radio waves to exchange data. Now the data rate has been increased a hundredfold by using lasers instead of radio signals. Two test satellites each carried a diode laser pump ... > full story -
GIOVE-B Transmitting Its First Signals
May 7, 2008 Following a successful launch on April 27, GIOVE-B began transmitting navigation signals May 7. This is a truly historic step for satellite navigation since GIOVE-B is now, for the first time, ... > full story -
How Dry We Are: European Space Agency To Test Earth's Soil Moisture Via Satellite
April 24, 2008 Europeans want to peek into the world's soil and see how dry various regions are. The European Space Agency (ESA) is set to launch the Soil Moisture and Ocean Salinity (SMOS) satellite this fall as ... > full story -
Secure Communications Via Space
April 22, 2008 The exchange of information between distant sources is the basis of all communications, but quantum mechanics may open up this distant exchange as never before. Quantum key distribution, for ... > full story -
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Tourist Information Wherever You Are, On Your Phone
April 11, 2008 Would you like instant access to information on the buildings and scenery you see on your travels? A novel mobile phone program is able to provide information on what you see when you see ... > full story -
Airborne Study Of Arctic Atmosphere, Air Pollution Launched
April 1, 2008 This month, NASA begins the most extensive field campaign ever to investigate the chemistry of the Arctic's lower atmosphere. The mission is poised to help scientists identify how air pollution ... > full story -
Quantum Channel Between Earth And Space? Firing Photons Makes Advance In Space Communication
March 28, 2008 For the first time, physicists have been able to identify individual returning photons after firing and reflecting them off of a space satellite in orbit almost 1,500 kilometers above the earth. The ... > full story -
Arctic Sea Ice Still At Risk Despite Cold Winter, NASA Says
March 18, 2008 Using the latest satellite observations, NASA researchers and others report that the Arctic is still on "thin ice" when it comes to the condition of sea ice cover in the region. A colder-than-average ... > full story -
Artemis Provides Communications For Jules Verne ATV
March 14, 2008 ESA's Artemis data relay satellite, controlled from Fucino (Italy) and with its mission control center and Earth terminal located at Redu (Belgium), is providing communications between the Jules ... > full story -
Vanguard I Celebrates 50 Years In Space
March 13, 2008 The Vanguard I satellite celebrates its 50th birthday this year. Its launch on March 17, 1958 from Cape Canaveral, Fla., culminated the efforts of America's first official space satellite program ... > full story
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