Earth Science & Climate

How Rare Is Green Lightning and What Causes It?

Why Is the Arenal Volcano Important?

How to Tell If a Rock Is a Meteorite

What Type of Fault Is the San Andreas Fault?

How Much Larger Is Earth Than the Moon?

Why Is There So Little Wind Where Circulation Cells Meet?

What Is the Longest Duration That a Hurricane Has Lasted?

What Type of Plate Boundary Is Iceland On?

What Exoplanet Has the Greatest Potential for Harboring Life?

Where Are Volcanoes Located in the United States?

How Does a Sundial Work? The Science of Telling Time

How to Calculate Cation Exchange Capacity (CEC)

Can LiDAR Penetrate the Ground?

When Was the Last Time the San Andreas Fault Went Off?

How to Tell Time by the Sun and Estimate Solar Time

What Is a High Surf Advisory and When Is One Issued?

What Happens If Lightning Strikes a Building?

Is Nephrite Jade Valuable? Factors That Determine Its Worth

Why Does February Have 29 Days Every 4 Years?

Why Is It Called the Wolf Moon?