Gama solar sail
French startup Gama envisions using its solar sails to enable deep space missions at a fraction of the cost of those that require conventional propulsion.

A French startup has raised an initial round of funding to begin testing of solar sails it believes can sharply reduce the cost of deep space missions.

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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...