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May 31, 2013

Radiation on trip to Mars near lifetime limit
Washington (AFP) May 30, 2013
Astronauts who travel on future missions to Mars would likely be exposed to their lifetime limit of radiation during the trip, not to mention time spent on the Red Planet, scientists said Thursday. The measurements were made aboard the Mars Science Laboratory, an unmanned NASA rover and mobile lab that set off for Mars in 2011 before landing 253 days later in August 2012, said the report in the US journal Science. "In terms of accumulated dose, it's like getting a whole-body CT scan once every f ... read more

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Asteroid approaching for Earth fly-by found to have its own 'moon' An asteroid that will pass by Earth Friday is in fact a binary asteroid, with a smaller asteroid orbiting a larger one like a small moon, U.S. astronomers say. ... more		NASA mission solves mystery of moon's uneven gravity NASA says its Gravity Recovery and Interior Laboratory mission uncovered the origin of massive regions inside the moon that make its gravity uneven. ... more		Chemical reactions with rocks, water may have supported life on Mars A reaction between rocks and water may create enough hydrogen "food" to sustain microbial life under Earth's crust, or possibly on Mars, U.S. scientists say. ... more
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Boeing X-51A WaveRider Sets Record with Successful Fourth Flight X-51A WaveRider unmanned hypersonic vehicle achieved the longest air-breathing, scramjet-powered hypersonic flight in history May 1, flying for three and a half minutes on scramjet power at a top sp ... more		ATK Hoping Tp Clean Up Rocketscience ATK has completed the first U.S.-based testing of the High Performance Green Propulsion (HPGP) thruster technology for the NASA Goddard Space Flight Center (GSFC). The testing was conducted at ATK D ... more		EU states to hold talks on 'drone wall' to protect bloc Denmark military intel fails to identify source of drone flights Lithuania eases rules on shooting down drones		Sierra Nevada Corporation Dream Chaser Testing Begins at NASA Dryden, Langley Sierra Nevada Corporation's (SNC) Space Systems Dream Chaser flight vehicle arrived at NASA's Dryden Flight Research Center in Edwards, Calif., Wednesday to begin tests of its flight and runway land ... more
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