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Pluto

Space

Pluto is coloured red by ammonia spewing from underneath its surface

NASA’s New Horizons spacecraft has found signatures of ammonia on Pluto, which probably spurted from under the surface in fountains relatively recently

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Pluto

Space

Pluto has an underground ocean kept warm by a layer of gassy ice

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Pluto

Space

It will be 'snowing' nitrogen on Pluto for the next century

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10 year challenge: How science and the world have changed

Environment

10 year challenge: How science and the world have changed

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A picture of pluto

Space

Pluto’s weird ridges may be glacial landforms unlike any on Earth

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Methane ice and winds on Pluto make strange 'sand' dunes

Space

Methane ice and winds on Pluto make strange 'sand' dunes

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Pluto is not a planet – it's a billion comets squished together

Space

Pluto is not a planet – it's a billion comets squished together

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Gooey nitrogen ice may make Pluto’s crater-free heart look young

Space

Gooey nitrogen ice may make Pluto’s crater-free heart look young

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A layer of haze keeps Pluto’s atmosphere extremely cold

Space

A layer of haze keeps Pluto’s atmosphere extremely cold

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The dwarf planet Eris

Space

Volcanoes that spew stretchy ice could make dwarf planets bright

Something strange is happening on dwarf planets Eris and Makemake. They’re tiny and cold, but they still show surprising signs of geologic activity, like real planets

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Space

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

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Space

NASA funds radical Pluto hopper and cosmic echolocation concepts

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Space

Discovery of tiny moon completes the set for worlds past Neptune

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Space

Pluto is still an ex-planet, no matter what its fans think

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