Stephen Hawking, the world's most famous scientist, takes on the ultimate question: Did God create the universe? He explores whether the earliest moments of existence are a question for science or religion.

Michelle Rodriguez brings together scientists and military strategists to dramatize what would happen if and when aliens attack planet Earth.

Maggie Gyllenhaal hosts a revealing investigation with cutting edge science exploring the purpose of orgasms. In men, the answer is simple: reproduction. But women don't need an orgasm to get pregnant.

It's almost 100 years since the Titanic sank. Drawing on detailed trial records that describe the sinking, we recreate both the science and human drama of one of history's greatest stories.

Everything that has made America bountiful and powerful is a product of forces that date back billions of years. An array of dazzling visual effects show how ancient geology has shaped modern America and its people.

The Mayans predicted that time would end on December 21, 2012. Samuel L. Jackson hosts a CGI exploration of a global apocalypse from a scientific point of view.

Morgan Spurlock joins nine ordinary men and women in an attempt to survive in the wild using only stone-age technology. From the start, cold, dehydration and hunger threaten to derail an experiment designed to see if we were better off as cavemen.

Morgan Spurlock and his group continue their experiment to live in the wild only stone-age technology. Hunger and deprivation push the group to the brink of failure. A successful elk hunt might save them.

It's the year 2967, and Adam Savage is 1,000 years old. He reflects on his long life and reveals how science in the 21st century transformed his body, creating a supercharged cyber-human and allowing him to live forever.

Mike Rowe becomes a human lab rat to uncover the unseen array of creepy-crawlies that live on the human body.

Horror filmmaker Eli Roth searches for the true nature of evil, covering the past and present and surveying both philosophers and maniacs. In a series of experiments, he examines what causes people to perform evil acts.

It's meant to be a joyous event, but in reality, it's a gripping battle for survival. This exploration goes inside the womb from conception to birth, showing how the struggle for life turns into the miracle of birth.

Donald Trump speculates on how much America is worth, putting a dollar amount on land, resources and more. He reveals the inventors and entrepreneurs whose hard work and great ideas have made America rich.

Robin Williams hosts a groundbreaking experiment in which four heavy users on four of America's most abused drugs perform a series of physical tests to show exactly how drugs work.