A former NASA scientist is convinced that the space agency found "evidence of life" on Mars in the 1970s.
In the article, Gilbert Levin, a contributor to the Viking missions, reports on the Red Planet this decade that he believes data from the Labeled Release (LR) of 1976 support the finding of life.
"On July 30, 1976, the LR returned its first results from Mars." Levin wrote in the commentary: "I am convinced that in the 1970s we found evidence of life on Mars."
"Surprisingly, they were positive. As the experiment proceeded, a total of four positive results, supported by five different controls streamed by the Twin Viking spacecraft, landed about 4,000 miles apart. "
He continued," The data curves signaled the detection of microbial respiration on the Red Planet. The curves of Mars were similar to those produced by soil LR soil tests. It seemed we answered that last question.
Levin-led LR took samples of Martian soil containing organic compounds and searched for carbon dioxide. Amazingly, the results seem to indicate that the carbon dioxide is "being regenerated, possibly by microorganisms as on Earth".
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However, Levin seemed to criticize the space agency, which did not pursue the findings of the LR, even though NASA concluded that it "found a substance that mimics life, but not life."
a life-tracking tool that will continue to track these exciting results, "he continued. "Instead, the agency launched a series of missions to Mars to determine if any human habitat was ever suitable and, if so, to bring biological assays to Earth."
NASA later visited Mars, including the InSight lander, which landed in November 201
Last November, NASA announced that it has selected a landing pad for its upcoming Mars 2020 mission, a rover that will not include a "life-tracking test," Levin wrote.
"With our current measurements, we can not say whether the source of methane is biology or geology or even antiquity or modernity," said SAM chief researcher Paul Mahaffy of NASA's Goddard Spaceflight Center in a June statement. On Earth, methane is produced both biologically and geologically.
Levin argued that the space agency make "life-tracking experiments possible on the next mission to Mars" to make their life-hunting more accurate, but also "in tune with the good" – Established Scientific Protocol. "He also wants an independent group of scientists to check the Viking LR's data.
"Such an objective jury, like me, might come to the conclusion that the Viking LR has come to life," Levin concluded. "In any case, the study would probably provide important clues to NASA's quest for its holy grail."
The newly released release is not the first time that Levin has suggested that life was found on Mars. In 1997, according to his website, he "published his conclusion that the LR had actually discovered living microorganisms on the Red Planet".