News tagged with geophysical research letters

Bursts of methane may have warmed early Mars

The presence of water on ancient Mars is a paradox. There's plenty of geographical evidence that rivers periodically flowed across the planet's surface. Yet in the time period when these waters are supposed to have run—three ...

dateJan 24, 2017 in Space Exploration
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Great valley found on Mercury

Scientists have discovered a new large valley on Mercury that may be the first evidence of buckling of the planet's outer silicate shell in response to global contraction. The researchers discovered the valley using a new ...

dateNov 16, 2016 in Space Exploration
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