Mars Discovery: Largest Organic Molecules
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Curiosity Mars rover discovers largest organic molecules ever seen on Red Planet

78% Informative
Scientists have announced the discovery of the largest organic molecules ever found on Mars .
The molecules are known as alkanes, hydrocarbons that combine chains of carbon atoms with hydrogen atoms attached to them.
They could have come from the breakdown of fatty acids that existed 3.7 billion years ago before being preserved in sediments laid down by an ancient lake.
The findings were published on March 24 in Proceedings of the National Academy of Sciences .
Keith Cooper is a freelance science journalist and editor in the United Kingdom .
He's the author of " The Contact Paradox: Challenging Our Assumptions in the Search for Extraterrestrial Intelligence".
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