@CNN: Organic matter has been found on Mars in soil samples the Curiosity rover took from 3 billion-year-old mudstone in the Gale crater, NASA says https://t.co/dTDGsfsGc3 https://t.co/5pohsjFeqw

@CNN: Organic matter has been found on Mars in soil samples the Curiosity rover took from 3 billion-year-old mudstone in the Gale crater, NASA says https://t.co/dTDGsfsGc3 https://t.co/5pohsjFeqw