President Trump in December 2017 prepares to sign the first of four Space Policy Directives (SPD) he’s signed since taking office. SPD- 2, “Streamlinging Regulations on Commercial Use of Space,” was signed May 24, 2018.

Proponents say they’re committed to pressing ahead with the reforms and reorganizations promised last year, but some worry that a window of opportunity could be closing.

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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...