Cosmically close: Astronomers discover two galaxy clusters about to collide
June 25, 2019For the first time, astronomers have found two giant clusters of galaxies that are just about to collide.
Star in closest orbit ever seen around black hole
March 14, 2017Astronomers have found evidence of a star that whips around a likely black hole twice an hour. This could be the tightest orbital dance ever seen by a black hole and a companion star in our own Milky Way galaxy.
