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
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
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.
As doctors and nurses are on the frontlines, saving the lives of those infected by COVID-19, others have a role to play to prevent the disease spreading further by staying at home. This goes for ESO staff as well, including astronomers and telescope
Astronomers using the Atacama Large Millimeter/submillimeter Array (ALMA), in which ESO is a partner, have spotted a peculiar gas cloud that resulted from a confrontation between two stars. Find out more about this stellar fight in this ESOcast Light