WASHINGTON — Russia plans to fly two missions of its Soyuz-U rocket, which failed Aug. 24 while attempting to deliver supplies to the international space station, prior to launching a new crew to the orbital outpost atop a similar launch vehicle, a senior NASA official said.

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Dan Leone is the NASA reporter for SpaceNews, where he also covers other civilian-run U.S. government space programs and a growing number of entrepreneurial space companies. He joined SpaceNews in 2011.Dan earned a bachelor's degree in public communications...