To Mars by A-Bomb: The Secret History of Project Orion

1940, Kawamoto Akiko lives in Hiroshima with her father and mother, Genkichi and Shizuko, as well as her two younger brothers. Akiko loves playing...

Travel into the world of aviation and explore the dreams of flight with the Smithsonian as they step into the unknown.

Aspiring teenage astronauts reveal that a journey to Mars is closer than you think.

This captivating documentary on J. Robert Oppenheimer, the architect of the atomic bomb, explores his journey before the historic test and reveals...

We've all heard of the atomic bomb, but in the late 1950s, an idea was conceived of a bomb which would maximize damage to people, but minimize damage...

How can structures, which take up defined, rigid portions of space, make us feel transcendence? How can chapels turn into places of introspection?...

For 18-year-old Finnish–Kosovan Fatu, a simple visit to the grocery store feels as nerve-racking as a lunar expedition: for the first time in...

It contains 99.9 percent of all the matter in our solar system and sheds hot plasma at nearly a million miles an hour. The temperature at its core is...

Travel alongside the astronauts as they deploy and repair the Hubble Space Telescope, soar above Venus and Mars, and find proof of new planets and...

Join the Mars rovers Spirit and Opportunity for an awe-inspiring journey to the surface of the mysterious red planet.

Hiroshima and Nagasaki: 75 Years Later is told entirely from the first-person perspective of leaders, physicists, soldiers and survivors.

Some 220 miles above Earth lies the International Space Station, a one-of-a-kind outer space laboratory that 16 nations came together to build. Get a...