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The Planetary Society: Cosmos 1: The First Solar Sail
Details about the June 2005 mission of the Cosmos 1 solar sail spacecraft, which is "a spacecraft without an engine — it is pushed along directly by light particles from the Sun, reflecting off giant mirror-like sails." Feature background information about this Russian-built spacecraft, images and animations, instructions for building a scale model of the craft, a blog, and other information related to the privately funded Cosmos 1 mission. From The Planetary Society.
http://www.planetary.org/programs/projects/solar_sailing/

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