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Science
Out of context: Reply #654
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'Electric Sails' Could Propel Superfast Spacecraft by 2025
Robotic spacecraft may ride the solar wind toward interstellar space at unprecedented speeds a decade or so from now.
Researchers are developing an "electric sail" (e-sail) propulsion system that would harness the solar wind, the stream of protons, electrons and other charged particles that flows outward from the sun at more than 1 million mph (1.6 million kilometers per hour).