Three top-secret satellites launched by Russia between 2013 and 2015 have recently been reactivated, and appear to be carrying out missions to rendezvous with other man-made objects in orbit, performing comparatively dramatic maneuvers to make their intercepts. Despite assurances from the Russian government that these vehicles are benign, there is speculation that these satellites might be anti-satellite weapons, designed to maneuver close to another satellite and destroy it with an onboard weapon.
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