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    Russia Loses Contact with Progress MS-04 after Launch

    Ruptured Oxidant Tank Likely Cause of Progress Spacecraft Dec. 1 Accident

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    A ruptured oxidant tank on the third stage of a carrier rocket most likely caused a recent accident involving a Russian Progress cargo spacecraft, Russia's space corporation Roscosmos said Wednesday.

    MOSCOW (Sputnik) — The Progress MS-04 space freighter burned up in the atmosphere and its debris fell in south Siberia's Tuva Republic after a faulty launch on board a Soyuz-U carrier rocket on December 1.

    "Investigators have established that the most likely cause of the accident was a rupture of an  oxidant tank on the third stage of the carrier rocket following the destruction of a 11D55 engine…," Roscosmos said in a statement.

    The corporation will also unveil the safety plan for the upcoming launch of the Progress MS-05.

    The launch has been scheduled for February 21, 2017 from the Baikonur Cosmodrome.


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