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Shape
PBS
We can't directly see the forces that govern Earth, but we can see their shadows in the shapes of nature that surround us. If we understand why these shapes exist, we can understand the rules that bind the entire universe.
Elements
PBS
The forces of nature make Earth a restless planet, but they also turned our ball of rock into a home for life. How did our planet's ingredients, the chemical elements, come together and take that first crucial step from barren rock to a living world?
Color
PBS
Earth is painted in stunning colors. By understanding how these colors are created and the energy they carry, we can learn the secret language of the planet.
Forces of Nature - How We Experience Earth’s Natural Forces
PBS
Take a global tour in four themed episodes, answering the simplest questions about the complex forces that shape our planet. Why is water blue? How can a shape defy gravity? Why do bees make hexagonal honeycombs? And how do these things affect our own lives? Discover what lies beneath Earth's…
The End of Time
Peter Mettler's enthralling, mind-bending new documentary is a tour de force that challenges our conception of time - and perhaps the very fabric of our existence. With stunning cinematography and a knack for capturing astonishing moments, The End of Time travels the planet - from the CERN particle accelerator outside…
NOVA - Making North America
PBS
Mighty, elemental forces molded North America. Fiery eruptions, titanic floods, the grinding of great ice sheets, and massive impacts from space all shaped our land. Now, for the first time, NOVA presents a bold and sweeping biography of our continent and how it came to be. This epic story unfolds…
Origins
Part of the Series: NOVA - Making North America
Experience the colossal geologic forces that shaped our continent over 3 billion years.
Life
Part of the Series: NOVA - Making North America
How did massive volcanic eruptions, inland seas, and land bridges pave the way for life?
Human
Part of the Series: NOVA - Making North America
How has the land shaped our lives, from the arrival of the first Americans to today?
Why Time Is a Mystery
Begin your study of the physics of time with these questions: What is a clock? What does it mean to say that "time passes"? What is the "arrow of time"? Then look at the concept of entropy and how it holds the key to the one-way direction of time in…
Time Travel
Use a simple analogy to understand how a time machine might work. Unlike movie scenarios featuring dematerializing and rematerializing, a real time machine would be a spaceship that moves through all the intervening points between two locations in spacetime. Also explore paradoxes of time travel.
History's Mysteries
Begin this journey by taking a closer look at concepts that were once unexplainable but are now better understood. You'll focus on two such former mysteries: the existence of an invisible "aether" through which light and sound were believed to travel and the orbit of Mercury, which seemed to violate…