Science/Nature

NASA rethinking death in mission to Mars

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Zoo hatches endangered Asian turtle

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How long will a bell bong?

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Space tourist to write book

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Germany in losing battle to save glacier

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Bones of prehistoric camel found at Wal-Mart site

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Ashes of 'Scotty' blasted into space and back again

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Astronaut to catch early flight home

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Scientists: Prehistoric volcanoes heated Earth

Ancient volcanoes may have caused a dramatic warming of the Earth's atmosphere that raised sea temperatures and killed off many marine species, resulting in a "planetary emergency," U.S. and European scientists said Thursday.

Hawking: 'See you in zero G'

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