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91av. Science news and long reads from expert journalists, covering developments in science, technology, health and the environment on the website and the magazine.

Enceladus’s hot, gritty core may cook up ingredients for life

Space

Enceladus’s hot, gritty core may cook up ingredients for life

Saturn’s moon Enceladus seems to have a sandy core that warms water passing between the grains. This heating could help create conditions that are right for life

News

artist's impression of an exoplanet

Space

We may have found 20 habitable worlds hiding in plain sight

News

Proxima b

Space

Our closest star system may be home to a stolen star and planet

News

Nine probes reached the outer solar system: Where are they now?

Space

Nine probes reached the outer solar system: Where are they now?

Features

Some TRAPPIST-1 planets may have the right conditions for water

Space

Some TRAPPIST-1 planets may have the right conditions for water

News

We’ve just seen 15 new mysterious cosmic radio bursts from space

Space

We’ve just seen 15 new mysterious cosmic radio bursts from space

News

artist's concept of plumes on Europa

Space

One of Europa’s plumes may not exist, making hunt for life hard

News

Kepler planetary disk

Space

‘Alien megastructure’ star may host Saturn-like exoplanet

News

Futuristic city

Space

Science fiction picks: Time for a reality check

Culture

Titan

Space

Building blocks of alien cells found on Saturn’s largest moon

The discovery of two compounds that could help make cells only adds to Titan’s image as the most promising place in our solar system to look for alien life

News

Physics

Aliens slumbering for billions of years are out there – really?

Comment

Life

The best way to detect aliens may be by finding their footprints

News

Space

The exoplanet zoo – a whistle-stop tour

Features

Life

The ethics issue: Should we colonise other planets?

Features