The planned Sept. 15 launch of an upgraded Falcon 9 rocket is in question following the rocket’s prelaunch static fire test at Vandenberg.

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Brian Berger is editor in chief of SpaceNews.com and the SpaceNews magazine. He joined SpaceNews.com in 1998, spending his first decade with the publication covering NASA. He was named senior staff writer in 2004, a position he held until being named...