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Sorry, Neil Armstrong. Boffins say you may not have been first life-form to set foot on the Moon

Alan Brown Silver badge

"Robust surviving earthly bacteria on the feet of the lunar module would have touched the lunar surface before the Armstrong moon-boot."

Robust earthly-bacteria from a technician's sneeze are believed to have survived on the surface long enough to be _brought back_ when Pete Conrad chopped off Surveyor 3's camera in 1969. (This is controversial because it wasn't properly isolated during the return process but on the flipside only a few hundred bacteria of a single species were isolated vs the millions of various species you'd expect if it was the result of cross-contamination)

This tends to indicate they went there with the first probes.

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