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immune system

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Space

Did 'Martian' methane signal come from Earth?

Claims of methane on Mars, which fuelled hopes that the planet hosts life, may be premature

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Don't send bugs to Mars

Life

Don't send bugs to Mars

Comment

Giant ice volcano may have been found on Titan

Space

Giant ice volcano may have been found on Titan

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Geminid meteors set to dazzle

Space

Geminid meteors set to dazzle

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Space

Probe fails to orbit Venus and flies into space

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Saturn's strange propellers show how planets are born

Space

Saturn's strange propellers show how planets are born

Features

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Space

Space debris may cause mysterious ball lightning

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Experiment casts doubt on origins of lunar water

Space

Experiment casts doubt on origins of lunar water

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Hardy bugs could survive a million years on Mars

Life

Hardy bugs could survive a million years on Mars

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Comet caught throwing basketball-sized snowballs

Space

Comet caught throwing basketball-sized snowballs

The phenomenon, which has never been seen before, was observed by NASA's Deep Impact probe during a recent flyby of Comet Hartley 2

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Space

Former 'tenth planet' may be smaller than Pluto

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Space

LCROSS mission may have struck silver on the moon

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Space

Solved: mystery of the meteor-shedding asteroid

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Space

Cosmic accidents: Sparking up our star

Features

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