Richard Shelby Senate
Sen. Richard Shelby (R-Ala.).

NASA Administrator Jim Bridenstine’s surprise announcement March 13 that NASA is considering moving Exploration Mission 1 off of the Space Launch System took many in the industry by surprise, but some have reacted by defending the use of the SLS.

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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...