The Chocolate Hills of Bohol, Philippines are so perfectly shaped that local legends say they were crafted by giants. Geologists can't agree exactly what happened, but the answer might be as simple as limestone, water, and...

There are some geological areas on the planet that scientists still don't understand. For most things it's pretty clear—combine a volcanic eruption a dash of erosion, and boom, you’ve got a striking cliff! But not all the features on...

Two years ago we were very excited about the announcement of water on Mars, but some new research challenges that idea. And one of our most successful exoplanet finding tools has discovered another one, this time pretty close to home!

Normal interplanetary travel uses lots of fuel, but taking advantage of some quirks of gravity can let us travel between planets using hardly any fuel at all.

Cliffs and canyons, beaches and dunes, floodplains and river valleys, plateaus and mountains — these are all products of a restless Earth. In today’s episode we’re going to take a closer look at how landforms greatly influence how people...

Howcast -Check out Part 2 and beat "Desmond's Journey Part 2" from Assassin's Creed Revelations with this online demo.

Cycle through Northern New Mexico during the annual Santa Fe Century bike race and see if TV host Darley Newman can make it 100 miles and up Heartbreak Hill.

Who were the Celts? In this episode, we travel back to ancient Europe to learn about the Celtic people, known for their bold warriors, skilled metalwork, and deep connection to nature. We’ll explore their daily life, beliefs, and famous...

Explore the diverse landscapes and climates of the United States’ five geographic regions and discover the unique characteristics that define each area.

Landforms are natural features on Earth's surface. They come in all shapes and sizes. In this video, learn about the different landforms found in the United States.

Discover Earth's physical features, from oceans to mountains, and learn how land and water form our planet's diverse landscapes.

A video entitled “Energy of Roller Coasters” which describes how roller coasters use potential and kinetic energy to move.

Exploring the Himalayas and Nepal:Embark on a spiritual journey through the Himalayas as we explore the sacred temples of Nepal. Prepare for breathtaking views atop Mount Everest, the highest peak on Earth, and indulge in the flavors of...

The Cascadia Subduction Zone is a sleeping monster lurking just off the Northwest coast of the United States. It extends 600 miles between Northern California and Vancouver B.C. and experiences a massive megathrust earthquake every 250...

The first things NASA's Spirit rover discovered on Mars.

There was a surge in UFO sightings from the 1940s through the 1980s, with the "flying saucer era" beginning in 1946. Significant events like the Roswell incident in 1947 and the first widely publicized alien abduction case of Barney and...

Discover what lies beneath the sand in deserts. Contrary to popular belief, 80% of deserts are not covered in sand, but rather bare earth, revealing the bedrock and clay of a dried-out ecosystem. Learn about the unique erosion patterns...

Meet Yanis Marshall, a French dancer and choreographer who has taken the dance world by storm, challenging norms and redefining expression. From choreographing Cirque du Soleil's Zumanity to working with stars like Celine Dion and Ryan...

Meet Andrew Zielinski and John Krasinski, a married couple celebrating two years together. Their unique bond extends beyond their wedding vows—they ride tandem bicycles in ultramarathons, events spanning 200 miles or more. The tandem, a...

Why did Rome attack Greece Battle of Cynoscephalae, 197 BC (Part 2/2)

This video provides a detailed account of the Battle of Arsuf during the Third Crusade in 1191, where King Richard the Lionheart led the Crusaders to victory against Saladin's forces. The battle showcased Richard's strategic prowess...

This video provides a detailed account of the military maneuvers and strategic decisions made by Julius Caesar and Pompey Magnus during their conflict in 48 BCE. It describes Caesar's efforts to outmaneuver Pompey, the siege tactics...

Dr. Forrester talks about the different types of landforms that can be found in the United States. She also describes several landforms in detail about how they are created.

Dr. Forrester describes the work of geographers and discusses landforms. She also explains that landforms are natural features of the land’s surface.