WASHINGTON — Northrop Grumman said April 21 it took a $71 million charge in its fiscal first quarter linked to an anomaly with a solid rocket booster that has grounded the Vulcan Centaur rocket.

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Jeff Foust writes about space policy, commercial space, and related topics for SpaceNews. He earned a Ph.D. in planetary sciences from the Massachusetts Institute of Technology and a bachelor’s degree with honors in geophysics and planetary science...