Last Watched

"The Earth"  Sort by

Birth of the Earth

   2012    Science
The Earth was formed by a series of cosmic cataclysms including the most powerful blast in the Universe. Yet amid the turmoil our world was born. Could the same chain of events have created other earths elsewhere, inhabited by creatures like us?
Series: How the Universe Works

The Southern Ocean

   2009    Nature
The Southern Ocean, which circles the globe without being blocked by land, is home to the Antarctic Circumpolar Current (ACC), the longest of the world's ocean currents. Also known as the "channel", it connects the Indian, Atlantic and Pacific Ocean basins and exerts a powerful influence over the Earth's climate. The ACC carries 150 times more water around Antarctica than the flow of all the world's rivers combined.
Series: Oceans

Is Gravity An illusion

   2014    Science
We feel it every moment of our lives but for physicists, gravity is the longest running unsolved mystery of the universe. Why do all objects that have mass pull on one another? Cutting-edge theories are proposing unexpected answers: Gravity could be another force in disguise, a thermodynamic mirage, or even, a shadow of a hidden holographic universe. If so, the force that holds us to the surface of the earth, and holds the earth in orbit around the sun, may be a trick of the mind. We feel it, but it may not be real. Is Gravity an Illusion?
Series: Through the Wormhole Season 5
Stephen Hawking's Favorite Places
Stephen Hawking's Favorite Places

   2016    Science
Prehistoric America
Prehistoric America

   2003    Nature
Top Gear
Top Gear

   2012    Technology
Through the Wormhole
Through the Wormhole

   2011    Science
How to Grow a Planet
How to Grow a Planet

   2012    Science
The Sky at Night
The Sky at Night

   2018    Science
Space Race
Space Race

   2005    Technology
What is the Right Diet for You
What is the Right Diet for You

   2015    Medicine