Virgin Galactic’s VSS Unity performs a burn during July 11 flight.

The Federal Aviation Administration will not allow Virgin Galactic to resume flights of its SpaceShipTwo suborbital spaceplane until it completes an investigation into a problem on the vehicle’s previous flight in July.

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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...