(Launch webcast begins at 5:29 a.m. PDT)
Live coverage of the United Launch Alliance Atlas 5 rocket on the NROL-55 mission with a classified payload for the National Reconnaissance Office. Text updates will appear automatically below; there is no need to reload the page. Follow us on Twitter.
NASA is sure enough that Boeing and SpaceX can safely launch astronauts to the International Space Station by early 2019 to hold off paying Russia to keep flying U.S. crews to the research complex, and one official says a deadline to order parts for new Russian Soyuz crew capsules may have already passed.
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