The Comet

Partly adapted from cosmologist Stephen Hawking's popular book about his theories of the universe, this in-depth documentary also presents Hawking's...

CERN and the University of California-Santa Barbara are collaborating in the search for the elusive substance that physicists and astronomers believe...

Part of the Almost Famous series. Jocelyn Bell was a graduate student at Cambridge in 1967 when she pushed through the skepticism from her superiors...

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...

T. S. Eliot ends one of his most famous poems, "The Hollow Men", by repeating three times the sentence "This is how the world ends" - and then...

European Space Agency astronaut Alexander Gerst and his NASA colleague Reid Wiseman are launched into space from the Baikonur Cosmodrome in...

At the edge of our solar system supposedly lies an immense planet. Five to ten times the size of the Earth. Several international teams of scientists...

An incredible travel through space and time between the walls of the Paris Observatory, which is celebrating its 350th birthday. Place of discoveries...

Nearly forty years after the moon landing the men on the mission reveal what really happened. On how close the mission came to disaster.

Photo sequence of the rare transit of Venus over the face of the Sun, one of the first chronophotographic sequences. In 1873, P.J.C. Janssen, or...

Area 51, flying saucers from another world - and the program to create a fierce technology. Bob Lazar remains the singular most famous and...