Earth & Space

What Happened to Lake Corcoran?

How Is a Waterfall Formed? The Process Explained

What Is the Difference Between Infiltration and Percolation?

How Floods Are Measured: From Gauges to Satellites

What Determines a Star’s Color?

What a Tornado Sounds Like and Why

How Fast Do Plate Tectonics Move and Why?

Does Sand Get Moldy? What Causes Mold in Sand

What Does It Mean When a Ring Is Around the Moon?

Where Do Compasses Point? Magnetic North Explained

Where Does Seafloor Spreading Occur?

What Are Trade Winds and How Do They Form?

Are Thermal Inversions More Likely in Valleys or on Hills?

How Can You Calculate the Peak Altitude of the Sun in the Sky?

What Earth Really Looks Like From Space

What Is the Farthest Astronauts Have Traveled?

What Are Circumpolar Stars and Why Do They Appear?

What Are Two Observations That the Earth Rotates on Its Axis?

How Much Is a Meteorite Worth?

How Does a Rift Valley Form? The Stages Explained