SLS
Workers are removing platforms in the Vehicle Assembly Building at the Kennedy Space Center, revealing the SLS ahead of its March 17 rollout. Credit: NASA

WASHINGTON — NASA is ready to roll out the first Space Launch System rocket this week for a countdown rehearsal ahead of a launch later this year.

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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...