A Russian federal launch of the Proton M/Briz M failed to carry Russia’s Express AM4R communications satellite to geostationary orbit on May 16. After lifting off from the Baikonur Cosmodrome in Kazakhstan at 1:42 a.m. Moscow time, the rocket “developed an anomaly” during the third-stage flight, “and the Express AM4R spacecraft was not placed into its intended orbit,” according to a statement by International Launch Services (ILS) of Reston, Va., which markets ...

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