Earth Science & Climate

Is the Universe and a Galaxy the Same Thing?

When Does Fall Begin? The Equinox and Meteorological Dates

Does Sand Have High Permeability?

What Was the Temperature on the Moon When Apollo 11 Landed?

How to Identify Polaris, the North Star

How Are Intrusive Igneous Rocks Formed?

How Much Weight Can 1 Inch of Ice Hold?

At What Elevation Does Air Get Thinner?

Why Is the Dead Sea Disappearing?

What Is the Humidity in Utah Throughout the Year?

What Do the Sun and Moon Have in Common?

How Hard Is Bedrock? Measuring Its Strength and Hardness

What Is a Rogue Planet and How Do We Find One?

Is There Water Under the Ocean Floor?

What Was the Barometric Pressure of Hurricane Katrina?

How to Find Crystals: A Beginner’s Field Guide

Where Is It Currently Summer in the World?

What Is the Name of the Largest Crater on Mercury?

Is Mafic or Felsic Magma More Explosive?

Is the Asteroid Belt a Sphere? Its True Shape Explained