Scientists finally solve mystery of cigar-shaped comet Oumuamua after it was initially mistaken for a UFO
Astronomers were puzzled as the rock appeared to be accelerating in a way no one could explain
Artist's impression of the interstellar asteroid Oumuamua. Photo: M Kornmesser/ESO
Sarah Knapton
When the mysterious comet Oumuamua passed through the Solar System in 2017, its odd trajectory led some to speculate it might be an alien spacecraft.
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