sciencehabit (1205606) writes "The Curiosity rover will definitely find evidence of an advanced civilization if it lands safely on Mars. That's because any rock samples the rover drills will be contaminated with bits of Teflon from the rover's machinery, NASA announced during a press teleconference. The bits of Teflon can then mix with the sample, which will be vaporized for analysis. The problem for the scientists is that Teflon is two-thirds carbon—the same element they are looking for on Mars."
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