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origins of life

An astronaut outside the International Space Station

Space

No, aliens aren't lurking on the International Space Station

History tells us that earthly contamination is by far the most likely explanation for “extraterrestrial” bacteria found on the ISS hull, says Geraint Lewis

Comment

Enceladus

Life

Private mission may get us back to Enceladus sooner than NASA

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Ocean-covered planets may not be the places to search for life

Space

Ocean-covered planets may not be the places to search for life

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The message we're sending to nearby aliens is no threat to Earth

Space

The message we're sending to nearby aliens is no threat to Earth

Comment

Artist’s impression of GJ273 star system

Space

We just sent a message to try to talk to aliens on another world

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We've just found a nearby exoplanet that could be right for life

Space

We've just found a nearby exoplanet that could be right for life

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

Space

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

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artist's impression of an exoplanet

Space

We may have found 20 habitable worlds hiding in plain sight

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Proxima b

Space

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

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

Space

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

Besides Cassini, eight missions have passed the asteroid belt – and several are still broadcasting from the furthest solar system and beyond

Features

Space

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

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Space

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

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Space

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

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Space

‘Alien megastructure’ star may host Saturn-like exoplanet

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