Scientists make predictions about the structure and function of objects based on observations. Ms. Gentemann introduces natural and man-made structures and how to observe them. / Emily Gentemann, ...

Earth reveals its dynamic nature from space, showcasing nine natural wonders visible from orbit. These include the Great ...

Natural bridges are rock formations shaped by geological activity over millions of years. Let's take a look at some of these stunning natural structures. Pont d'Arc, FranceA popular tourist attraction ...