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EntertainmentAmerica's top-secret aircraft was photographed when operating in the universe
A Dutch astronomer took a clear picture of the US Air Force X-37B operating in orbit.Mysterious Air Force aircraft at 600 days in orbit
The US Air Force's mysterious X-37B space plane has spent 600 days on Earth orbit in its latest mission, nearly reaching the longest record in the program's universe.
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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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