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Kepler planetary disk

Space

‘Alien megastructure’ star may host Saturn-like exoplanet

Rather than being caused by extraterrestrial construction, the bizarre dimming of Tabby’s star could instead be due to a closely orbiting, ringed planet

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

News

Foggy background forest with outline of child in the foreground

Physics

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

Comment

Mars rover wheel tracks

Life

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

News

A possible view on an alien world: mountaintops poking through mist and two suns visible in the sky

Space

The exoplanet zoo – a whistle-stop tour

Features

surface of Mars

Life

The ethics issue: Should we colonise other planets?

Features

Marine zooplankton

Earth

Oil-exploration airguns punch 2-kilometre-wide holes in plankton

News

Very Large Array radio telescope

Space

Messages from fake aliens decoded quickly in online SETI contest

News

Mars strata

Life

Mars rover sees signs of microbe-friendly layers in ancient lake

Curiosity’s inspection of a Martian lakebed reveals multiple environments where microbes could have thrived more than 3 billion years ago

News

Life

Sea stars filmed hunting squid and squabbling over eating it

News

Space

Microbes might thrive after crash-landing on board a meteorite

News

Life

Odds on: 10 science breakthroughs you can bet on

Features

Space

Martian life must be rare as free energy source remains untapped

News