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EntertainmentThe source of the bewildering knock on Chinese spacecraft
The mysterious knock on the surface of the spacecraft that has caused veteran astronauts to panic is not caused by aliens but the result of a change in air pressure.The knocking of the door outside the ship made the Chinese astronaut bewildered
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Why are there no male queen bees?
The mystery of the 'doomsday' cinema, built in the desert but not a single person has visited for more than 30 years
Mystery of dozens of giant circular structures at the bottom of Lake Michigan
US ship becomes world's largest artificial reef
Wreckage of mysterious missing bomber found after 80 years
Surprised to know the identity of the Russian missile debris 'hunter'
Australia releases chemical composition data of nearly 1 million stars
NASA shuts down plasma device to save spacecraft 20.5 billion kilometers away
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