SomePgmr writes "The U.S Air Force's highly secret unmanned space plane will land in June — ending a year-long mission in orbit. The experimental Boeing X37-B has been circling Earth at 17,000 miles per hour and was due to land in California in December. It is now expected to land in mid to late June. And still, no one knows what the space drone has been doing up there all this time."
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