Scientific American - USA (2020-10)

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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