NASA has selected seven companies to conduct studies of “out of the box” concepts for the agency’s Mars Sample Return (MSR) program that can deliver samples faster and cheaper than current plans.

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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...