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Curiosity Chills Out In Safe Mode While NASA Analyzes Computer Glitch
NASA’s Mars rover Curiosity paused its work over the weekend and is chilling in safe mode on Mars, while engineers on Earth try to resolve a computer glitch. The rover switched to a backup computer, but operations are on hiatus while NASA engineers work on the problem.
Last week, engineers noticed a glitch in the flash memory on one of the rover’s two computers. Curiosity had normal communications with Earth on Wednesday, Feb. 27, but like an annoying Facebook friend, it updated its status yet included no actual information. In the status update, engineers learned the rover did not go to sleep when planned, and when they started diagnosing the problem, they realized the main A-side computer had some corrupted files.
NASA’s Van Allen Probes Reveal a New Radiation Belt Around Earth
Feb. 28, 2013 — NASA’s Van Allen Probes mission has discovered a previously unknown third radiation belt around Earth, revealing the existence of unexpected structures and processes within these hazardous regions of space.
Previous observations of Earth’s Van Allen belts have long documented two distinct regions of trapped radiation surrounding our planet. Particle detection instruments aboard the twin Van Allen Probes, launched Aug. 30, quickly revealed to scientists the existence of this new, transient, third radiation belt.
The belts, named for their discoverer, James Van Allen, are critical regions for modern society, which is dependent on many space-based technologies. The Van Allen belts are affected by solar storms and space weather and can swell dramatically. When this occurs, they can pose dangers to communications and GPS satellites, as well as humans in space.
Read more: http://www.sciencedaily.com/releases/2013/02/130228155430.htm
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