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1I/‘Oumuamua, The First known Interstellar Visitor

Cuk and Schwamb

Join us for a special SETI Talk on 1I/`Oumuamua, the first known interstellar small body, possibly an asteroid which is probably coming from another planetary system. Its recent discovery by Pan-STARRS1 offers a rare opportunity to explore the planetary formation processes of other stars, and the effect of the interstellar environment on a planetesimal surface. Since its discovery, astronomers around the world have raced to use the most powerful ground-based and space-borne telescopes to collect information on its nature. Two astronomers, Meg Schwamb, astronomer at the Gemini Observatory in Hawaii and Matija Cuk, astronomer at the SETI Institute in Mountain View, will discuss the nature of 'Oumuamua, its color and shape in comparison with known small solar system bodies, as well as its origin derived from its extremely elongated shape and its orbit. They will show how its peculiarities seem to imply that 'Oumuamua is one of the most important discoveries of the decade in astronomy.

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Tuesday, 01/23/18


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