Episodes

Take a mind-blowing voyage to the most powerful and mysterious objects in the universe.

Apollo astronauts and engineers tell the inside story of the first manned mission to the moon.

He risked his life for the nation and became a world icon, but who was Neil Armstrong?

Will future asteroids trigger massive extinctions—or be mined for precious minerals?

For the first time, two intrepid pilots fly a solar-powered airplane around the world.

Retrace the thought experiments that inspired his theory on the nature of reality.

The advent of horse riding changed the course of human history and the genetic makeup of humankind.