A small but incredibly fast unwanted guest is about to swing past Earth at the speed of light. Yeah, this is the tiniest black hole in the Universe. But despite its small size, could it rip our planet ...
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What if a single needle hit earth at light speed
A single sewing needle is tiny enough to slip through fabric unnoticed, yet physics suggests that if it somehow struck Earth at light speed, the result would look less like a pinprick and more like a ...
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