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Entertainment7 types of machines fell from the sky
Will spacecraft fragments fall to Earth, do they threaten our lives?Russian spacecraft caught fire when plunging to Earth
Russia's unmanned spacecraft, losing control of its mission to supply astronauts, plunged into the Earth's atmosphere today.
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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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