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It's almost kind of funny, in its frankness.

Scientist: NASA found life on Mars and killed it

WASHINGTON (AP) - Two NASA space probes that visited Mars 30 years ago may have found alien microbes on the Red Planet and inadvertently killed them, a scientist is theorizing.

The Viking space probes of 1976-77 were looking for the wrong kind of life, so they didn't recognize it, a geology professor at Washington State University said.