Dr. Ballard and his team will travel the world, seeking answers to questions at the root of earth and humanity.
What really happened on that fateful plane journey?
See what the planet looks like from space with these unique images.
The Animal Intervention team tries to convince owners to give up their exotic pets to a sanctuary.
Browse computer generated UFO images based on eyewitness sightings.
Meet the Danley Demo crew in their "demolisher" daily routine.
If Earth was about to be destroyed, what would we do? Mankind would need to create a vast ship, power it, and find a new...
Re-enacted scenes of people surviving and suffering during events that could end the world we live in.
Host Diego Buñuel ventures deep underwater to graveyards of Maya human sacrifices and through dangerous underground tunnels...
A rare fossil discovery is making scientists question our past.
Trek across the globe with National Geographic Explorers.
See the fastest land animal on the planet close-up.
Drug addicts go through medical and psychological testing to reveal devastating effects.
Thisis the ultimate countdown of Nature's natural born killers.
This project will help to uncover the story of life on Mars.
Meet the people who broke rules and pay for the consequences.
These roads face the toughest men in the towing business versus Mother Nature at her most inclement.