Celebrating Viking: Gilbert Levin Recalls the Search for Life on Mars

Forty years ago today, the first of two landing probes of NASA’s Project Viking touched down on planet Mars.

Discover contributor Dr. David Warmflash spoke with Dr. Gilbert Levin, whose Labeled Release (LR) experiment was one of three instruments delivered by the Viking landers to look for Martian microorganisms in 1976.

At age 92, Levin is the only survivor of the three biology experimenters and he’s looking ahead to 2020 when he hopes to have another instrument on the Martian surface

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