Keyword: Scientific Theory

When her scientist ex-boyfriend discovers a portal to travel through time -- and brings back a 19th-century nobleman named Leopold to prove it -- a...

How were the giant stone heads of Rapa Nui – also known as Easter Island – carved and raised, and why? Since Europeans arrived on this remote...

Smartphones, computers, gaming consoles or digital tablets are now givens in our daily lives. The electronic intrusion is causing controversy and...

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...

The computer animation Outside In explains the amazing discovery, made by Steve Smale in 1957, that a sphere can be turned inside out by means of...

Easter Island has long been the subject of curiosity and speculation. A triangle of volcanic rock in the South Pacific, Easter Island is over 2000...

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...

Zoo-archeologists, biologists, ethologists and geneticists are leading the investigation. For one thing is certain, the dog is still far from...

The Grand Canyon is a breathtaking natural monument. It's one of the planet’s best-known landscapes, yet we often forget that it tells two billion...

A Tear in the Sky takes you on an unprecedented journey into the UAP/UFO phenomenon as we follow a team of world-renowned experts, scientists, and...

The Faraway Nearby follows the tragic life of pioneer physicist Joseph Weber, whose pursuit of gravitational waves takes him on a dizzying journey...

Documentary which uses the latest, most detailed imagery to reveal the monthly life cycle of the moon. From Wales to Wyoming, Hong Kong to Croydon,...

Explores the Pyramids of Giza as Egyptologists try to unravel the mysteries and decipher the clues behind these stone giants built over 4,500 years...

The contrast between the majestic statues of Easter Island and the desolation of their surroundings is stark. For decades Easter Island, or Rapa Nui...

A simple, carved figure bought at an auction in New York leads David Attenborough on a global journey from Russia to Australia, from England back to...

Attack of the Red Sea Sharks investigates why sharks killed three people in less than a year in the coastal waters of Red Sea resorts. Multiple...