Space
Is this really a piece of Mars?
We've got a piece of the Red Planet to give away – find out how you could win it, and how we know it's really from Mars
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Life
NASA floats Titan boat concept
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Space
Saturn moon’s atmosphere forged by comet impacts
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Space
Geyser moon puts its mark on Saturn
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Space
NASA kills off comet hunter
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Space
Probe set to become Mercury’s first artificial satellite
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Space
NASA should bring Mars rocks back to Earth, says panel
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Space
Hot pixel mystery plagues delayed space telescope
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Space
Found: crater from Deep Impact’s comet crash
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Space
Gushing flood formed giant Martian sinkhole
Meltwater flowing through deep cracks in the Martian rock may explain the origins of the enormous Hebes Chasma canyon
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Space
Smash rocks to test how planets form
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Space
First humans set to land on Mars, sort of
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Space
Probe to survey comet dented by Deep Impact mission
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Earth
What if the Earth stopped spinning?
Features