A scientist suggests that NASA's experiments in the 1970s may have inadvertently destroyed traces of life on Mars. This information is reported by the ScienceAlert portal. In the 1970s, NASA conducted the Viking mission,

However, for years, scientists have argued that the Viking's experimental techniques might’ve killed hygroscopic microbes living on Mars with too much water. While impossible to know for sure, this theory could be proven true or false if NASA sends another dedicated mission to detect biological life on Mars.

Could Mars have once hosted life? NASA's Perseverance rover has uncovered a tantalizing clue, but scientists remain divided on what it truly means for the search for extraterrestrial life.

The rover stumbled upon a zebra-striped rock that is unique against the red surroundings of the planet. This rock is about 7.8 inches in width and was found in the Jezero Crater,

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