91色情片

Artist's impression of an alien world

Space

Impossible vanishing stars could be signs of advanced alien life

Finding extraterrestrial civilisations with technology far beyond our own could be as simple as catching stars or galaxies in a disappearing act

Life

Rip up the rule book and let NASA’s Mars rover check ‘life’ zone

Life

Is NASA doing enough to look for alien life?

A landscape with a distant person looking up at the night sky where the Milky Way is visible

Space

First mirror-image molecule found in interstellar space

Map of Mars's methane

Environment

Spongy minerals could explain why Mars gives off methane burps

superhabitable AW

Life

There might be a planet better than Earth 鈥� right next door

Juno probe

Life

Pinball planets: How life could start in a violent solar system

The Allen Telescope Array

Life

SETI looks at red dwarf stars in its search for ancient aliens

Life

Solar system mysteries: Where can life exist?

Life

Black hole sun could support bizarre life on orbiting planets

A reversal of thermodynamics could allow life to exist on planets orbiting a black hole, as seen in the film Interstellar

Space

Comets can’t explain weird ‘alien megastructure’ star after all

Environment

How to find ET: 7 ways aliens might give themselves away

Space

Famous Wow! signal might have been from comets, not aliens

Life

The Visit: What aliens would really mean for us as humans