Louis Friedman

Nov. 13, 2009

Solar Sail Spacecraft

The Planetary Society plans to power a spacecraft using the pressure of sunlight reflecting off huge solar sails.

spaceflight, solar sail, sagan, lightsail

AVAILABLE IN ITUNES

Michael Pollan Talks Plants and Food

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Museum Mania

BOOKS BY OUR GUESTS

Mystery Box

Medical Oddities from the Bowels of the Mütter

\t"Disturbingly informative," is how museum director Robert Hicks describes Philadelphia's Mütter Museum--items of interest include a gangrenous hand, wax models of extinct diseases, deformed bones and body parts. Now imagine what's in the basement. Science Friday got a behind-the-scenes tour.

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