50 years ago, NASA sent two spacecraft—Viking 1 and Viking 2—to search for life on Mars. These groundbreaking missions carried biology labs onboard and conducted the first-ever experiments directly on Martian soil. One test hinted at possible microbial life… but others didn’t agree. Then came a twist: a chemical in the soil may have destroyed the very evidence Viking was searching for.
Half a century later, scientists are still debating what the Viking missions really discovered. Did we already find life on Mars—and just not recognize it?
Watch now to uncover the fascinating story of NASA’s Viking missions and the mystery that still grips the scientific world.
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