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Artist's impression of Earth's collision with Theia

Earth

Bits of an ancient planet called Theia may be buried in Earth’s mantle

Two strange, high-density blobs buried more than a kilometre underground may have come from the ancient world Theia, which is thought to have slammed into Earth to create the moon

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Space

What would it take to make the most inhospitable planet for life?

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Space

Slicing the moon in half would be disastrous for Earth – but beautiful

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Space

Is it possible to turn Venus from boiling hellscape to liveable world?

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Space

NASA’s Psyche mission to a metal asteroid may reveal how Earth formed

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Artist's concept of Makemake

Space

Eris and Makemake might be hiding unexpected oceans of liquid water

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Space

Could we tweak the solar system to make Pluto a planet again?

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Space

Is an enormous shield the worst way to protect Earth from asteroids?

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Space

Mysterious dark spot on Neptune seen from Earth for the first time

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Space

All of Neptune’s clouds have vanished – it may be because of the sun

Over the past few years, the white clouds that usually shroud Neptune’s surface have disappeared, and it may be because of changes in the sun’s activity over its 11-year cycle

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Space

Could a gravitational wave rip apart an entire planet?

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Space

Storms on Saturn are so huge that their traces last hundreds of years

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Space

Is it possible to drill a hole straight through a planet?

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Space

Stunning photo of a young star hints how Jupiter-like planets form

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