Planetary defence 101: tracking dangerous asteroids Remember asteroid 2024 YR4? Earlier this year, its odds of impacting Earth in 2032 rose to around 3%, the highest impact probability ever reached for a sizable asteroid. How did we end up ruling out such an impact? And what can we do if we ever find another dangerous asteroid? In this episode of Chasing Starlight we give you a crash course on planetary defence. ESO Video Casts Go to SourceRead More →

How massive can black holes get? Black holes are objects so massive and compact that not even light can escape from inside them. But just how massive can they get? In this episode of Chasing Starlight we take you on a tour of the most extreme black holes we know of. ESO Video Casts Go to SourceRead More →