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Submission + - Ikaros Spacecraft Successfully Propelled in Space (

An anonymous reader writes: Japan's IKAROS spacecraft has already successfully deployed the first solar sail in space, but today it made the only first that really matters: it successfully captured the sun’s rays with its 3,000 square-foot sail and used the energy to speed its way through space. Each photon of light exerts 0.0002 pounds of pressure on the 3,000-square-foot sail, and the steady stream of solar exposure has succeeded in propelling the nearly 700-pound drone.
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Ikaros Spacecraft Successfully Propelled in Space

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