Paul Spudis
Paul Spudis spent his career studying the moon and advocating for robotic and human exploration of it.

Paul Spudis, a planetary scientist who devoted his career to both the study of the moon and initiatives to return humans there, passed away Aug. 29.

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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...