a manhole cover launched into space with a nuclear test is the fastest human-made object. a scientist on operation plumbbob told us the unbelievable story. - discu.eu

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A manhole cover launched into space with a nuclear test is the fastest human-made object. A scientist on Operation Plumbbob told us the unbelievable story. https://us.yahoo.com/news/manhole-cover-launched-space-nuclear-010358106.html 237 comments 3/3/2023 space