Let Sigrid tell you about the solar system that resolves around the Sun, including the order and characteristics of the planets within it. What is the closest planet to the Sun? What are the smallest and largest planets?

Fracking is a controversial topic. This animated video tries to take a neutral look at fracking. It is relevant for all of us, because of high prices for energy and the danger to our drinking water.

The narrator explains how the breathtaking rock formations of Antelope Canyon came to be, and why mountains around the world can provide a metaphor for human existence.

Why are some rock formations and animals found on more than one continent? The explanation dates back to the Ice Age.

Why do some of the national parks in the United States resemble the European Alps? Geologist Dr. Robert Darga answers this question.

What happened when Expedition PROTECT and American Promise arrived at Jeffrey's Ledge, a marine protected area in the Gulf of Maine? The crew tells us about what they are doing and why.