We thought comet and asteroids traveling between stellar systems would be rare because of the distances involved, but now we have detected an example, in Oumuamua. The fact that we found an example so soon after developing telescopes argues that they must be rather more common than we thought.

Professor Lattanzio

John Lattanzio is an astrophysicist who works on understanding stars and how they make the elements that comprise our world. He serves as President of the International Astronomical Union’s Commission on Stellar Evolution and is a professor in the Monash Centre for Astrophysics at Monash University in Australia. Previously, Lattanzio held positions in Canada and France, at the University of Cambridge’s Institute of Astronomy, and at the Lawrence Livermore National Laboratory. Lattanzio is an Honorary Fellow of the Astronomical Society of Australia.

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