How the Universe Works, Asteroid: Countdown to Catastrophe

With more than 80 moons, Saturn could be the most dynamic planetary system in our cosmic neighbourhood, and with giant underground oceans, and protective magnetic fields, experts explore how these satellites could rewrite the rules of the Solar System.

Mars is infested with robots, orbiting the planet, and roaming the Martian surface on a mission to uncover its secrets. Now, Perseverance joins this dedicated group of machines to uncover if there is, or was there ever, life on the Red Planet.

The collision of two supermassive black holes is the most violent event that can occur in the universe, and now, experts explore where a black hole's energy originates, and what really happens when the two most powerful objects in the cosmos clash.

The year is 2029. An asteroid the size of a city block hurtles towards the US at 40,000 mph that will reduce New York to ashes. Now, experts confront the story of this fictional asteroid event to determine what could happen, and how it might be stopped.

New discoveries have rewritten the history of our solar system, revealing a complex, and violent story that begins with the birth of our Sun from the debris of a massive galactic collision, to its eventual fate as a lone zombie star.