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Technology

US Air Force wants to plasma bomb the sky using tiny satellites

Three teams are competing in a US Air Force project to improve radio communication by directly seeding the ionosphere with plasma

News

planet

Space

No-fly zone: Exploring the uncharted layers of our atmosphere

Features

round, grey blob on micrograph

Earth

Shooting stars show Earth had oxygen eons before we thought

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

News

Illustration of a planet losing its atmosphere

Space

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

News

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

News

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

Temperature and CO2 are at record levels, but don’t let that distract from the bigger picture of long-term climate change, says Michael le Page

Analysis

Space

Exclusive photos: Clouds seen on Pluto for first time

News

Earth

Planets with too much carbon dioxide could lose oceans to space

News

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

News