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Earth

Shooting stars show Earth had oxygen eons before we thought

Tiny meteorites discovered in Australia show that Earth's air had some oxygen in it at a time when no one thought it did – 2.7 billion years ago

News

The Jicamarca Radio Observatory in Peru, where radar echoes in the upper atmosphere were first detected

Space

Invisible radar wall in the atmosphere caused by UV from the sun

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Mount Everest

Earth

Early Earth's air may have been thinner than on Everest today

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Illustration of a planet losing its atmosphere

Space

Stars burn away the atmospheres of close-in super-Earths

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swansong earth

Earth

Last days of Earth: Life in 7 billion years AD

Features

A blue glow in the clouds, as seen from the window of the ISS

Earth

Upside-down lightning and mystery blue glimpses caught on film

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clouds

Earth

Rain makers: How high-flying bacteria could control the clouds

Features

Record warming is terrifying but long-term trend is even worse

Earth

Record warming is terrifying but long-term trend is even worse

Analysis

Exclusive photos: Clouds seen on Pluto for first time

Space

Exclusive photos: Clouds seen on Pluto for first time

News

A desert, with a few stones and dry branches in the foreground and a very bright sun shining in a clear, dark blue sky

Earth

Planets with too much carbon dioxide could lose oceans to space

Adding vast amounts of CO2 to the atmosphere could heat a planet to the point where it leaks so much water that its oceans eventually disappear

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Earth

Fake meteors could probe mysterious layers of upper atmosphere

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Earth

El Niño means glaciers in the Andes are melting at record rates

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Health

This is what life is like in the smoggiest place on Earth

News

Earth

You don't have to burn to get too much sun

News