Space Sailing
The National Aeronautics and Space Administration (NASA) has successfully launched a new solar sail propulsion system. Similar to the way a sailboat is powered by wind, solar sails are powered by the pressure of sunlight and offer very low, but constant, acceleration. Made of a flexible composite polymer material reinforced with carbon fiber, this innovation is designed to replace electric and consumable chemical propellants, possibly enabling the use of lighter spacecraft to carry larger payloads or achieve greater speeds. NASA officials predict that future large-scale systems could be used for early-warning space weather satellites, near-Earth asteroid reconnaissance missions or communications relays for crewed exploration missions.
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