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Just saw the news after the holiday. Curiosity found firm clue that Mars may harbor life somewhere under its shell. Scientists confirmed that the rover found sources of methane coming our from the underground. The scientists are not sure about the source, but 95 percent of methane (CH4) here in Earth is produced by various lifeforms. The discovery was reported at the American Geophysical Union Fall Meeting. “It is one of the few hypotheses that we can propose that we must consider as we go forward,” said John P. Grotzinger, the mission’s project scientist.The scientists also reported that for the first time, they had confirmed the presence of carbon-based organic molecules in a rock sample. The so-called organics are not direct signs of life, past or present, but they lend weight to the possibility that Mars had the ingredients required for life, and may even still have them. Full news at NY Times, BBC.
