Dan Aykroyd Unplugged On UFOs

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

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...

UFOs and spirits can be seen in Salme municipality on the island Saaremaa. There are viking skeletons and the Sõnajalg family wind turbines...

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

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

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

In the late 1970s, the US government sent a message to our distant neighbors. Twenty years later, the response we received sparked the biggest UFO...

The Hidden Hand is a controversial Award-winning documentary that explores the possibility of an extraterrestrial presence here on Earth. The film...

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...

On July 16, 1969, hundreds of thousands of spectators and an army of reporters gathered at Cape Kennedy to witness one of the great spectacles of the...

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