8 votes Hubble observes comet 2I/Borisov, the first confirmed interstellar comet Posted October 16, 2019 by Deimos Tags: astronomy, comets, hubble space telescope, telescopes, 2i borisov, author.rob garner, source.nasa https://www.nasa.gov/feature/goddard/2019/hubble-observes-1st-confirmed-interstellar-comet