Space
ExoMars crash must not mean abandoning next Red Planet rover
A critical point looms for Europe's life-hunting Mars rover after its test lander crashed. It must roll on, say astrobiologists Dirk Schulze-Makuch and Alberto Fair茅n
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Physics
Strange signals from 234 stars could be ET – or human error
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Space
Plumes spotted on Europa raise hopes that we can taste its ocean
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Space
If Earth-like planet Proxima b has life, what might it be like?
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Earth
Genesis in a jar: How chemical gardens may lead us to alien life
Features
Space
Fleet of robots could hunt for life on icy moon Enceladus
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Space
Old planets always get too hot or cold for life in the end
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Life
Who needs water? Dry volcanic vents more alive than wet soil
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Space
Building blocks of life spotted around comet for the first time
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Earth
Super-salty Turkish lakes may hold key to spotting life on Mars
A new survey of extreme microbes living in salty and alkaline lakes could yield "fingerprints" that help detect the biological origin of rocks on Mars
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Earth
Early Earth’s air may have been thinner than on Everest today
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Space
SpaceX Mars mission is a chance to hunt for life on the planet
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Space
Cassini gears up for final fiery plunge into Saturn’s atmosphere
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Space
First direct evidence of ancient Mars’s oxygen-rich atmosphere
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