Life
How a radical redefinition of life could help us find aliens
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
Features
Space
Space germs: How can we avoid contaminating other worlds?
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Space
Why sending messages to extraterrestrials is controversial
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Space
Space rock or flashy alien technology? We’re going to find out
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Space
The hunt for habitable ocean worlds beyond our solar system
Features
Space
Earth’s algae and moss could survive under the light of another star
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Space
Enceladus shown to have all six of the essential elements for life
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Space
Group that wants to contact aliens will transmit to TRAPPIST-1 system
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Space
Scientists want to play chess with aliens as soon as we can find them
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Space
Mars may have been habitable millions of years later than we thought
Analysis of minerals in a Martian meteorite suggest that the planet may have begun to be hospitable for life 30 million years later than previously thought
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Space
Bacteria survive extremes that may have existed in ancient Mars lakes
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Space
Maps of planetary nurseries will help the complex hunt for alien life
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Space
Martian cave entrances may offer a life-friendly radiation shield
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Space
Microbes burping methane on Mars may be right next to NASA rover
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