<ul><li>Nasa rover discovers largest organic compounds yet found on Mars</li><li>Curiosity rover detected the largest organic compounds ever seen on Mars in a 3.7 billion-year-old rock sample from Yellowknife Bay, an ancient Martian lakebed.</li><li>The compounds, long-chain alkanes, were found in the rock and are organic molecules thought to be remnants of fatty acids, crucial constituents of cell membranes in all living organisms on Earth.</li><li>While the discovery does not provide definitive evidence of past life on Mars, it represents the best chance scientists have had to identify remains of life on the red planet.</li></ul>

Nasa rover discovers largest organic compounds yet found on Mars

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