CST-100 Starliner launch abort engine
A launch abort engine, developed by Aerojet Rocketdyne for Boeing's CST-100 Starliner spacecraft, fires during a 2016 test. A static-fire test of the complete launch abort system suffered a propellant leak at the end of the test. Credit: Aerojet Rocketdyne

WASHINGTON — Boeing now plans to carry out an uncrewed test flight of its CST-100 Starliner commercial crew vehicle late this year or early next year as it addresses a problem found during a recent test of the spacecraft’s abort engines.

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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...