Back up to: Horizon
A dinosaur graveyard in Patagonia may answer questions on dinosaur evolution into giants.
Two years ago, a half-bird, half-dinosaur fossil was revealed. All was not as it seemed.
The story of two scientists who each claimed they could predict volcanic eruptions.
Horizon investigates the explosive deaths of stars 20 times the size of the Sun.
A fossil skull named Flat-Faced Man may overturn traditional theories of human evolution.