Solar Cruiser: A Giant Sail Prepares for Space

It is many times larger than any previous solar sail, and it will pave the way for even bigger spacecraft propelled by light. Solar Cruiser principal investigator Les Johnson tells us about his latest project and looks to humanity crossing the gulfs of interstellar space. Stellaris: People of the Stars is a collection of science fact and fiction co-edited by Les. Mat and Bruce offer a copy in the new What’s Up space trivia contest. There’s more to discover at https://www.planetary.org/planetary-radio/0106-2021-les-johnson-solar-cruiser

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