Horizon investigates the theory that a massive comet impact in the Gulf of Mexico was responsible for the mass extinction of dinosaurs, and other flora and fauna, 65 million years ago. Show more
Discover 11,128,835 listings and 278,064 playable programmes from the BBC
Horizon investigates the theory that a massive comet impact in the Gulf of Mexico was responsible for the mass extinction of dinosaurs, and other flora and fauna, 65 million years ago. Show more