Astronaut Edgar Dean Mitchell's experience in space led him to found the Institute of Noetic Sciences, which explores the science behind psychic and spiritual phenomena.

The documentary tells the story of Gus Grissom, Ed White and Roger Chaffee, who died after a fire erupted in their spacecraft on the launch pad.

Just four years after the first human traveled to space, a Soviet cosmonaut and later an American astronaut took next steps that would be vital to exploration: They walked in space. A spacewalk, when ...