Russia’s Progress 53 cargo capsule returned to the six-person International Space Station (ISS) early April 25 to complete validation of the new KURS-NA automated docking system. The 8:13 a.m. EDT re-docking of the space freighter at the ISS Russian segment’s Zvezda service module concluded a two-day flight- test of the upgrade. The improvements include three fewer antennas, upgraded electronics, lower power requirements and less mass than the automated rendezvous equipment it is ...


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