They'll eventually be joined by NASA astronaut Karen Nyberg, Russian cosmonaut Fiyodor Yurchikhin and European Space Agency astronaut Luca Parmitano, who are due to launch aboard a Russian Soyuz spacecraft on May 28.

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They will be joined at the end of the month by three new crew members: NASA astronaut Karen Nyberg, Russian cosmonaut Fiyodor Yurchikhin and European Space Agency astronaut Luca Parmitano, who are due to launch aboard a Russian Soyuz spacecraft on May 28.

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Friday's failure now puts a major question mark against the next Soyuz launch, scheduled for 28 December from the Baikonur Cosmodrome.

BBC: Another Soyuz rocket launch fails

On Thursday, March 28, a Russian Soyuz carrying two Russian cosmonauts and an American astronaut launched from Baikonur Cosmodrome at 4:43 p.m.

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