‘Oumuamua is long gone from the inner solar system, but the mystery surrounding the interstellar interloper has been rekindled, thanks to a research paper written by two Harvard astronomers.
Vaporizing cities is not the goal of Starshot, of course. Rather, if the plan works out, camera-wielding Starchips could send humanity the first close-up photos of Earth-size worlds by the 2060s.