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How a radical redefinition of life could help us find aliens

How a radical redefinition of life could help us find aliens

19 June 2023

Sara Imari Walker, who developed Assembly Theory with chemist Lee Cronin, explains how the theory's definition of life might help us find it on other planets


The crater and its extremely harsh lake, Laguna Caliente, dominated by a single genus of extremophile Acidiphilium bacteria

Bacteria survive extremes that may have existed in ancient Mars lakes

28 January 2022

Microorganisms have adapted to one of the harshest environments on Earth, a sulphurous and acidic lake that is considered an analogue to ancient lakes on Mars


Dressed in a spacesuit which is a replica of the one worn by Tim Peake on his mission to the International Space Station

Project Hail Mary review: Andy Weir conjures a new tale of space peril

15 May 2021

In the latest sci-fi novel from The Martian author, Andy Weir, an unlikely duo battle to avert the decline of our sun (and the collapse of life on Earth)


Why icy moons like Europa are our best bet for finding alien life

Why icy moons like Europa are our best bet for finding alien life

17 June 2020

Vast oceans within the moons of Jupiter and Saturn could be hidden hotspots for life. NASA astrobiologist Kevin Hand reveals his plans to find it


Asteroid over Earth

Have we really found an alien protein inside a meteorite?

3 March 2020

A team of researchers say they have discovered a protein molecule inside a meteorite, the first extraterrestrial example ever found, but others are sceptical


life artwork

Why the hunt for alien life is under way far beneath Earth's surface

13 November 2019

Microbes that breathe sulphur could redefine what it means to be alive and provide clues about what organisms may lurk in the cosmos


Moving to Mars – this show will help you become a real Martian

Moving to Mars – this show will help you become a real Martian

18 October 2019

From memorious clothing to wasteless habitats, the reality of living on Mars is brought home at London's Design Museum with genuine optimism


Artist's impression of a brown dwarf

Microbial life might drift in the atmospheres of failed stars

7 October 2019

Brown dwarfs are too large to be planets and too small to be stars, but they have gaseous atmospheres that may have all the ingredients needed for life


night sky artwork

Are there any aliens out there? We are close to knowing for sure

28 August 2019

Next-generation telescopes and new ways of detecting life on other planets are transforming the search for extraterrestrials. We may finally be about to find out if aliens exist


Martian landscape

Water on Mars is probably too cold and salty for life as we know it

29 March 2019

Even if there is water on Mars’s surface it may be too cold and salty for life as we know it to survive there – so there is no risk of contaminating Mars with Earth microbes


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