The day Gil Levin says he detected life on Mars, he was waiting in his lab at NASA's Jet Propulsion Laboratory, watching a piece of paper inch out of a printer. Levin snatched the sheet and scrutinized the freshly inked graph. A thin line measmoreuring radioactive carbon crept steadily upward, just as it always did when Levin performed the test with microbes on Earth. But this data came from tens of millions of miles away, where NASA's Viking lander was — for the first time in history — conducting an experiment on the surface of Mars. "Gil, that's life," his co-investigator, Patricia Straat, exclaimed when she saw the first results come in. There was jubilation at JPL. Afterward, Levin said, he drove into the mountains above Los Angeles, sat on the ground and stared up at the night sky. Read more https://www.washingtonpost.com/news...sa-still-believes-we-might-find-life-on-mars/