Methane, a chemical that results from the decay of organic matter, briefly shot up in abundance on Mars, according to readings from the Curiosity rover published in the journal Science . The tenfold spike measured in the atmosphere around the lander, along with organic molecules in a rock-powder sample the robot's drill collected, provide the strongest evidence yet for life on Mars.
the finding is in contrast to data from 2013
The finding is in sharp contrast to a 2013 read-out that suggested there wasn't enough methane on Mars to support living microbes — only 1.3 parts per billion. Using Curiosity's onboard sample analysis a dozen times over 20 months showed spikes in late 2013 and early 2014, with measurements finding an average of 7...
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