SLS before Aug. 29 scrub
Engineers spent more than two and a half hours trying to correct a problem with a hydrogen bleed line for one of four engines in the core stage of the SLS before calling off the launch Aug. 29.

NASA scrubbed the first attempt to launch its Space Launch System rocket and Orion spacecraft Aug. 29 after a problem with a hydrogen bleed line with one of the rocket’s four core stage engines.

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Jeff Foust has more than a decade of experience writing about space policy, entrepreneurial ventures and regulatory affairs. In 2001, he established spacetoday.net to aggregate and summarize the day's space-related news stories. In 2003, he started The...