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    A recent paper argues that planetary protection policies guarding spacecraft from bio-contamination need to be re-evaluated because they inhibit a more ambitious agenda to search for life on Mars.
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    Chemical reactions once thought to be 'impossible' in the incredible coldness of space can actually occur thanks to a phenomenon called ‘quantum tunnelling.’ This also could mean that biochemical reactions occur in places once considered too frigid for life, like Saturn’s moon Titan.
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