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X-37B military space plane's latest mystery mission hits 700 days
The U.S. Air Force's X-37B military space plane has now been circling Earth for 700 days, just a few weeks shy of the vehicle's spaceflight-duration record.
from FOX News https://ift.tt/2OMZk3H
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from FOX News https://ift.tt/2OMZk3H
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