Scientists Explain Unusual Motion of Comet from Another Solar System

New research explains why the comet ‘Oumuamua has sped up as it leaves the solar system. The comet is the first object from another solar system known to have visited our own.

Source : https://learningenglish.voanews.com/a/scientists-explain-unusual-motion-of-comet-from-another-solar-system-/7020428.html