Health
Too much radiation for astronauts to make it to Mars
Crews could exceed NASA's recommended maximum doses of space radiation before they get anywhere near the Red Planet
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Space
Lightning storm on Saturn is longest in solar system
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Space
Jupiter had brief encounter with icy companion
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Physics
Saturn’s moon Titan has a foggy bottom
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Space
Rain of meteorites makes the moon hum
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Space
One partner stumbles in lunar probe pas de deux
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Space
India’s first lunar probe fails after less than a year
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Life
Balmy water once bathed Mars rock claimed to host life
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Physics
Moon dust not as strange as hoped
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Space
NASA’s lunar impactor loses most of its fuel
A glitch caused NASA's LCROSS probe to repeatedly fire its thrusters to try to orient itself – but officials say it has plenty of fuel left to impact the moon as planned
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Space
Space probes fly in tandem to search for lunar water
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Space
Second robot deployed to help free stuck Mars rover
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Space
Saturn moon’s mirror-smooth lake ‘good for skipping rocks’
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Earth
Global warming could change Earth’s tilt
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