Shadow Chasers

Nichelle Nichols' daunting task to launch a national blitz for NASA, recruiting 8,000 of the nation's best and brightest, including the trailblazing...

Over the centuries only few caravans dared to cross the northern route of the silk road that today lies in the territory of Kazakhstan. In this...

A look at the Apollo 11 mission to land on the moon led by commander Neil Armstrong and pilot Buzz Aldrin.

This is the complete story of NASA's Moon Missions, from Apollo 1 to Apollo 17, told for the first time using 4K and HD original footage taken by...

Archival material from the original NASA film footage – much of it seen for the first time – plus interviews with the surviving...

Horizon visits state-of-the-art laboratories and uses CGI to recreate the science-fiction-worthy weather experienced on other planets.

Billions of years ago, Venus may have harbored life-giving habitats similar to those on the early Earth. Today, Earth's twin is a planet knocked...

Faced with the risk of collision with the Earth, space agencies are refining their observations on the course of asteroids in our galaxy. A...

Venture into deep space for a fascinating look at asteroids, their cosmic origins and the potential threat they pose to our world. Written and...

After decades of amazing discoveries, spacecraft Cassini embarks on its final - and most daring - mission: a dive below Saturn's rings.

Orson Welles — with contributions from scientists George Wald, Carl Sagan, and others — examines the possibility and implications of...

50 years after launching our dreams into space, we’re left with a troubling legacy: a growing ring of orbiting debris that threatens the safety...