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astronomy

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 – just in time for its biggest show of the decade

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Artist's impression of trappist-1 exoplanet system

Space

New exoplanet trio may have been dried out by fiery young star

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Totality by Katie Paterson

Syzygy exhibition squeezes cosmic wonders into everyday objects

Culture

Trio of Earth-sized planets around nearby star could reveal life

Space

Trio of Earth-sized planets around nearby star could reveal life

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Artist's imression of Hitomi

Space

Japanese satellite's death spiral linked to software malfunction

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A pretty picture of lots of stars, large and small, with a cloudy blue backdrop presumably made of more stars

Space

Milky Way's nearest galaxies may be new to the neighbourhood

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Makemake shining brightly, with a small, faint blob just above it and a big arrow pointing to it

Space

Never-before-seen moon spotted around dwarf planet Makemake

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The HAWC observatory near the Sierra Nevada volcano in Mexico

Space

Water telescope’s first sky map shows flickering black holes

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The Pleiades star cluster: it might have been the sun's nursery

Space

Planet Nine might be an exoplanet stolen by the sun

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Lasers could hide Earth from aliens – or tell them we're here

Space

Lasers could hide Earth from aliens – or tell them we're here

Shining lasers into space could hide us from unfriendly cosmic neighbours – or help us draw their attention. If the aliens are doing this too, we may have already spotted them

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Space

Long-term view of extreme cosmic burst challenges astronomers

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Space

Japanese Hitomi satellite falls silent after taking a tumble

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Space

Our galaxy's impossible collision could break gravity

Features

Space

Lost Japanese satellite Hitomi shows unexpected signs of life

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