Sending an object to another star is still the stuff of science fiction. But some concrete missions could get us at least part way there. These “interstellar precursor missions” include a trip to the solar gravitational lens point at 550 AU from the sun—farther than any artificial object has ever been, including Voyager.
发布者：Dr.Durant，转转请注明出处：https://robotalks.cn/ion-engines-could-take-us-to-the-solar-gravitational-lens-in-less-than-13-years-suggests-paper/
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