Saturday, June 09, 2018
If you're holding out hope that Mars may have once been an inhabited world, two new studies should put a little spring in your step.
NASA's Mars rover Curiosity has identified a variety of organic molecules, the carbon-based building blocks of life as we know it, in 3.5-billion-year-old Red Planet rocks, one of the papers reports.
The other new paper also details a Curiosity find: that methane concentrations in Mars' atmosphere cycle seasonally. The discovery suggests that this gas, which here on Earth is produced primarily by living organisms, is seeping out from underground reservoirs, study team members said.
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