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Mercury may have shrunk because magma was being piped to the surface

Space

Mercury may have shrunk because magma was being piped to the surface

Mercury started shrinking rapidly just after its formation, which may be explained by magma travelling from the planet's core to the surface through heat pipes

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NASA’s InSight lander has measured the size of Mars’s molten core

Space

NASA’s InSight lander has measured the size of Mars’s molten core

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Martian surface

Space

Mars’s crust may have sucked up most of the planet’s water

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Evidence for a hidden ‘Planet Nine’ beyond Neptune has weakened

Space

Evidence for a hidden ‘Planet Nine’ beyond Neptune has weakened

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Martian surface

Space

Dust storms on Mars are tossing water from its atmosphere into space

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Flashes of light called ‘sprites’ and ‘elves’ seen on Jupiter

Space

Flashes of light called ‘sprites’ and ‘elves’ seen on Jupiter

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More doubts cast on potential signs of life on Venus

Space

More doubts cast on potential signs of life on Venus

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venus

Space

Venus might not have signs of life after all, say astronomers

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Pioneer Venus Multiprobe

Space

NASA may have found signs of life on Venus in 1978 without realising

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the icy cap that covers Mars’ south pole, composed of frozen water and carbon dioxide.

Space

Mars’s south pole may have an underground lake surrounded by ponds

The south pole of Mars may be hiding a cold lake of liquid water surrounded by ponds, all buried 1400 metres beneath the planet’s ice caps

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Space

BepiColombo may be able to search for signs of life as it passes Venus

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Space

Life on Venus? Everything you need to know about the big discovery

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Space

Earth may have formed with enough water to fill the oceans three times

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Space

Strange lightning on Jupiter may be caused by ammonia snowballs

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