NASA successfully tested Solar Sail

Solar sail technology utilizes light for propulsion, similar to how wind propels sailing boats. NASA and its contractor have completed a solar sail deployment test. The sail membrane is made of a polymer material coated with aluminum. It has a thickness less than that of a human hair, and its size is as big as a basketball court. Solar sails do not require fuel and are very light, enabling them to reach high speeds under abundant sunlight. They may be used for future missions to study the poles of the Sun. Ultimately, solar sail technology holds promise for interstellar travel beyond our solar system.

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