To catch an interstellar visitor, use a solar-powered space slingshot

In 2017, a telescope in Hawaii detected our first celestial visitor from another solar system — a big deal, since we haven’t quite figured out how to visit them ourselves yet. ‘Oumuamua, the cigar-shaped interstellar object (ISO) whose name roughly translates to “first distant messenger” in Hawaiian, will certainly not be the last visitor to pass through. If the story of our universe is written in the stars, even a tiny fragment traveling a long way for a short visit provides a tremendous opportunity for scientific discovery. But in order…

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