ESOcast 224: First Interstellar Visitors to the Solar System

ESOcast 224: First Interstellar Visitors to the Solar System In this ESOcast, we explore some of the many questions interstellar visitors 1I/’Oumuamua and 2I/Borisov have raised including: what are they made of? How did they form? Are they like the comets or asteroids in our Solar System? And finally, what can they reveal about other […]

ESOcast 220 Light: Closest Black Hole to Earth Found

ESOcast 220 Light: Closest Black Hole to Earth Found 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 […]

ESOcast 219 Light: Star Dance Around Supermassive Black Hole

ESOcast 219 Light: Star Dance Around Supermassive Black Hole ESO’s Very Large Telescope has observed a star dancing around the supermassive black hole at the centre of the Milky Way. The observations have revealed, for the first time, that the star’s orbit is shaped like a rosette and not like an ellipse. ESO Video Casts […]