Apollo 16: Nothing So Hidden

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

From 1957 —the year in which the Soviets put the Sputnik 1 satellite into orbit— to 1969 —when American astronaut Neil Armstrong...

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...

The captivating tales of the people and events behind one of humanity's greatest achievements in exploration: NASA's Voyager mission.

The inspirational true story of Opportunity, a rover that was sent to Mars for a 90-day mission but ended up surviving for 15 years. Follow...

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

In an age when misinformation, alternative facts, and conspiracy theories have become mainstream, UFOs have risen to become one of the most-talked...

The Academy Award® nominee Cosmic Voyage combines live action with state-of-the-art computer-generated imagery to pinpoint where humans fit in...

At the heart of the Apollo program was the special team in Mission Control who put a man on the moon and helped create the future.

From the unique vantage point of 200 miles above Earth's surface, we see how natural forces - volcanoes, earthquakes and hurricanes - affect our...

National Geographic's riveting effort recounts all 12 crewed missions using only archival footage, photos and audio.

Recently discovered footage reveals the secret history of NASA's first landing on the moon, and using this brand-new evidence, former astronauts and...