Imagine floating in the vast silence of space when, out of nowhere, you hear a mysterious thump-thump—like a heartbeat echoing through the void. That’s exactly what astronauts have reported while on missions, and no one really knows where it’s coming from! Some think it’s just the spacecraft’s metal expanding and contracting, while others believe it could be something even weirder, like cosmic energy interacting with the ship. The eerie part? The sound isn’t picked up by instruments, only heard by the astronauts themselves! It’s like space itself is whispering a creepy little secret. Whatever the explanation, one thing’s for sure—outer space just got even spookier!
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