Space
Martian tubes could be home for ‘cavenauts’
Lava tubes on Mars may contain water ice, simulations show, providing protection from radiation and a water source for astronauts
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Life
Microbes thrive in harsh, Mars-like lakes
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Life
Evidence for life on Mars may be staring us in the face
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Space
Martian moon’s secrets to be revealed during fly-bys
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Space
Mars glacier lubricant could fuel rockets
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Space
Mars rover Spirit could rise again
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Physics
Destination Phobos: humanity’s next giant leap
Features
Space
Trapped Mars rover’s driving days are over
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Space
2009 review: The year in space
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Space
Second stalled wheel may doom Mars rover
NASA's Spirit rover was already fighting an uphill battle to escape a sand trap; if a second wheel cannot be coaxed back into action, the rover may freeze to death
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Life
Watery niche may foster life on Mars
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Space
Both of NASA’s Mars orbiters are down for the count
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Space
Mars rover battles for its life
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Humans
What’s the point of a fake 500-day Mars mission?
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