Lab demonstration of the Tunable Laser Spectrometer (Image: NASA/JPL-Caltech)
Installing the Sample Analysis at Mars (SAM) instrument in Curiosity (Image: NASA/JPL-Caltech)
NASA’s Curiosity Mars rover has detected no methane on Mars after more than a year of extensive testing of the Martian atmosphere using the robot explorer’s Sample Analysis at Mars (SAM) laboratory. Since methane is a key indicator for the presence of biological activity, its absence throws into question the notion that there may be life on Mars today.
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