Earth & Space

What Are the First Signs That Spring Is Coming?

What Is the Heaviest Object on Earth?

What Causes Rigel’s and Betelgeuse’s Different Colors?

Where Is Moldavite Mined? From Impact to Extraction

Are Porphyritic Rocks Intrusive or Extrusive?

How Is Mars Similar to Earth?

How Was Ceres Discovered? The Search for a Missing Planet

How Are Faults, Foci, and Epicenters Related?

How Does the Sun Affect the Geosphere?

What Does a 50% Chance of Snow Actually Mean?

What Are Terraces Used For? From Farming to Living

How Oxygen and Strontium Isotopes Reveal Mastodon Behavior

Is Aquamarine a Quartz? Key Differences Explained

What Process Brings Deep Cold Ocean Currents Up to the Surface?

Where Is Iron Mined in the US?

Can Jade Be White? The Science Behind White Jade

Can You See Tectonic Plates?

What Effect Does Elevation Have on Temperature?

Why Can’t I See the Northern Lights?

Are Cold Air Funnels Dangerous?