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12/23/2024 02:38:45 am

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The Planetary Society

Fly by light

LightSail 2 to Test Solar Propulsion -- or Flight by Light -- in Earth Orbit

As light reflects off a sail, most of its momentum is transferred, pushing on the sail.

Sunlight

Americans to Test First Spacecraft Powered by Sunlight

Solar sails are designed to capture the momentum from solar energy photons using large, mirrored surfaces.

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