Cassini Enceladus
An illustration of NASA's Cassini spacecraft flying through a plume above the surface of Saturn's moon Enceladus.

The Breakthrough Prize Foundation, the organization funded by Russian billionaire Yuri Milner, is examining the feasibility of a private mission to a moon of Saturn.

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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...