The Viking Mars mission may have missed signs of life when it visited the red planet 30 years ago.
NASA's Viking Mission to Mars put two landers on the red planet in 1976. Their experiments uncovered mysterious chemical activity in the Martian soil but no clear evidence of life. Now scientists suggest that telltale signs of life could have been there all along. They have found low levels of organic compounds in those soils, but can not detect them by the same technologies used by the Viking mission.
NASA's Viking Mission to Mars put two landers on the red planet in 1976. Their experiments uncovered mysterious chemical activity in the Martian soil but no clear evidence of life. Now scientists suggest that telltale signs of life could have been there all along. They have found low levels of organic compounds in those soils, but can not detect them by the same technologies used by the Viking mission.
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