First measurements of 'interstellar comet'

First measurements of 'interstellar comet'

Astronomers are gathering measurements on a presumed interstellar comet, providing clues about its chemical composition. The object, C/2019 Q4 (Borisov), is only the second interstellar object ever identified, after 'Oumuamua, which was spotted in 2017.

comet interstellar

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