A team of astronomers from the European Southern Observatory (ESO) and other institutes has discovered a black hole lying just 1000 light-years from Earth. The black hole is closer to our Solar System than any other found to date and forms part of a triple system that can be seen with the naked eye. The team found evidence for the invisible object by tracking its two companion stars using the MPG/ESO 2.2-metre telescope at ESO’s La Silla Observatory in Chile. They say this system could just be the tip of the iceberg, as many more similar black holes could be found in the future. Read more here: https://www.eso.org/public/news/eso2007/ This research was presented in the paper “A naked-eye triple system with a nonaccreting black hole in the inner binary”, published on May 6, 2020 in Astronomy & Astrophysics.