October 2020, ScientificAmerican.com 43
1I/‘OUMUAMUA, the first
interstellar object ever observed
in the solar system, passed
close to Earth in 2017.
Illustrations by Ron Miller
Two recently sighted space rocks that came from beyond the solar system have puzzled astronomers
Interstellar Interlopers
By David Jewitt and Amaya Moro-Martín
Interlopers
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