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immune system

A 300-kilometre space rock has vanished since we saw it in 1995

Space

A 300-kilometre space rock has vanished since we saw it in 1995

Don’t feel so bad for losing your keys. Astronomers somehow lost a huge space rock first seen 22 years ago – and it’s far from the first cosmic object to go missing

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The dwarf planet Eris

Space

Volcanoes that spew stretchy ice could make dwarf planets bright

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hole sun main

Space

Hiding in plain sight: The mystery of the sun's missing matter

Features

A gaggle of 7 moons keep Saturn’s rings from breaking apart

Space

A gaggle of 7 moons keep Saturn’s rings from breaking apart

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Solar flare

Earth

A tech-destroying solar flare could hit Earth within 100 years

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Distant dwarf planet near Pluto has a ring that no one expected

Space

Distant dwarf planet near Pluto has a ring that no one expected

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A moon base

Space

It was always crazy to shoot for Mars before colonising the moon

Comment

Nanoflares in the sun’s plasma may cause its scalding atmosphere

Space

Nanoflares in the sun’s plasma may cause its scalding atmosphere

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Moon

Space

Lunar volcanoes and lava lakes gave the early moon an atmosphere

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Craters on Ceres

Space

The mysterious bright spots on Ceres may have a common origin

The dwarf planet Ceres is dappled with mysterious bright splotches. Their make-up varies with location, but they may all come from the same process

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Space

Methane burps on young Mars helped it keep its liquid water

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Earth

Super-Earths draw asteroids to other worlds, which may seed life

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Earth

What a surprise – the end of the world has been delayed, again

Comment

Earth

Huge space rocks could have helped start Earth’s plate tectonics

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