Nova Season 8 Episode 20
Episode Title: The Asteroid and the Dinosaur
Countries:
USA,
Airing Date: March 10, 1981
Runtime:54 mins
IMDb Rating:
Watch Nova Season 8 Episode 20 full movie online free in HD with English subtitles – no download needed.
NOVA : NOVA explores the theory that the dinosaurs went extinct because a giant asteroid collided with earth, kicked up an enormous dust cloud that blocked sunlight for years and interrupted photosynthesis which disrupted the food chain, killing most animals.