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origins of life

A picture of a radio telescope

Space

Why haven't we heard from aliens? Because we've barely started looking

The search for alien life has found nothing so far. But the part of the galaxy we’ve searched is equivalent to just a bathtub of water in the world’s oceans

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10 mysteries of the universe: Is there life out there?

Space

10 mysteries of the universe: Is there life out there?

Features

DNA model

Life

Artificial genes show life does not have to be based on DNA

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Liu

Life

Exclusive: Chinese sci-fi genius Cixin Liu on humanity's deadly future

Culture

Earth

Life

The clues to finding alien life could lie in Earth's deep past

Features

Film-maker Ed Webb-Ingall investigates the Arran shoreline

Environment

How a tiny festival could save Scotland's coastal culture

Culture

Sterile fish could help wild salmon dodge the ‘gene pollution’ effect

Environment

Sterile fish could help wild salmon dodge the ‘gene pollution’ effect

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Preserved ocean creatures make landfall in London

Life

Preserved ocean creatures make landfall in London

Culture

We could find life on Europa by just scratching its surface

Space

We could find life on Europa by just scratching its surface

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planet

Space

Why weird star systems are where we'll find alien life

In the hunt for life beyond Earth, we've been looking for planets and stars like our own. But that is flawed – and a new plan promises answers in our lifetimes

Features

Space

Are we alone in the universe? Science says it’s a definite maybe

Analysis

Space

Mars has complex organic material that may be from ancient life

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Space

I'm working on a universal language to let us speak to aliens

Comment

Space

Exoplanet with a cloudless sky may let us see inside a gas giant

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