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Astrophysics

Colourful topographic map of Mercury

Space

First global Mercury map shows its hills and valleys in detail

The team behind NASA's Messenger mission to Mercury has released the first global topographic map of the planet聽鈥� just in time for its biggest show of the decade

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Health

Feedback: Poppers burn a hole in the UK’s blanket drugs ban

Regulars

Physics

LIGO could catch dark matter made of black holes

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Physics

Four big cosmology secrets gravitational waves could uncover

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Earth

Record-breaking double star may be cannibalising itself

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