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LAST-SECOND LAUNCH ABORT GROUNDS TWO U.S.-BUILT COMMUNICATIONS SATELLITES

LAST-SECOND LAUNCH ABORT GROUNDS TWO U.S.-BUILT COMMUNICATIONS SATELLITES An Ariane 5 countdown in French Guiana was aborted Tuesday with the European-made rocket’s main engine already running, postponing the launch of two commercial communications satellites until engineers can resolve the problem. The rare last-second abort came at 2151 GMT (5:51 p.m. EDT; 6:51 p.m. French Guiana time) Tuesday as the Ariane 5’s Vulcain 2 main engine, a cryogenic powerplant consuming super-cold liquid hydrogen and liquid oxygen, throttled up to full power.   More



(Source: SpaceFlight Now - Sep 6)

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