NASA believes that the mysterious comet named C/2019 Q4, which exited the astronomical community this week, is from outside the solar system. The object was discovered by Gennady Borisov, a Crimean astronomer at the MARGO observatory, Nauchnij, on August 30, 2019……. Read more »
Click here for original story, Comet 2019 Q4 (Borisov) likely an interstellar visitor
Source: The Watchers » Space News