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 […]