Sixty-six million years ago, a massive asteroid struck Earth and triggered the most famous mass extinction in history. This documentary recreates the final day of the dinosaurs — from the moment of impact to the collapse of ecosystems across the planet. Based on modern science, this is what the last hours of the dinosaur age really looked like. #Dinosaurs #Extinction #PrehistoricEarth #AncientWorld #AsteroidImpact #WildHorizonsNow #Documentary | WildHorizons

A real-time visualization of every known asteroid or comet classified as a Near-Earth Object (NEO). | Cosmoknowledge