Latest Space News
Thu, 18 Dec 2014 10:54:00 +0100
ESA and national disaster response offices recently rehearsed how to react if a threatening space rock is ever discovered to be on a collision course with Earth. Last month, experts from ESA's Space Situational Awareness (SSA) programme and Europe's national disaster response organisations met for a two-day exercise on what to do if an asteroid is ever found to be heading our way. In ESA's first-ever asteroid impact exercise, they went through a countdown to an impact, practising steps to ...
Thu, 18 Dec 2014 08:19:00 +0100
The European Space Agency’s orbiting Rosetta spacecraft is expected to come within four miles (six kilometers) of the surface of comet 67P/Churyumov–Gerasimenko in February of next year. The flyby will be the closest the comet explorer will come during its prime mission. “It is the earliest we could carry it out without impacting the vitally important bound orbits that are currently being flown,” said Matt Taylor, the Rosetta project scientist from the European Spa...
Thu, 18 Dec 2014 07:57:00 +0100
Lockheed Martin [NYSE: LMT] and Raytheon Company [NYSE: RTN] successfully completed the fourth of five planned launch and early orbit exercises to demonstrate new automation capabilities, information assurance and launch readiness of the world's most powerful and accurate Global Positioning System (GPS), the U.S. Air Force's next generation GPS III satellite and Operational Control System (OCX). Successful completion of Exercise 4 on Oct. 3 represents a key milestone demonstrating the end-t...
Wed, 17 Dec 2014 17:00:00 +0100
NASA satellite instruments have observed a marked increase in solar radiation absorbed in the Arctic since the year 2000 - a trend that aligns with the steady decrease in Arctic sea ice during the same period. While sea ice is mostly white and reflects the sun's rays, ocean water is dark and absorbs the sun's energy at a higher rate. A decline in the region's albedo - its reflectivity, in effect - has been a key concern among scientists since the summer Arctic sea ice cover began shrinking in...
Wed, 17 Dec 2014 14:00:00 +0100
Satellites may soon carry Raytheon's Gallium Nitride (GaN) technology into Earth orbit. Raytheon Company (NYSE: RTN) has successfully validated its GaN Monolithic Microwave Integrated Circuit (MMIC) technology for use in space-bound equipment. Raytheon GaN MMICs, fabricated at its Andover, Massachusetts foundry, demonstrated the radiation hardness required for space through Single Event Burn-out (SEB) and Total Ionizing Dose (TID) testing. The results showed the devices are not susceptible ...
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