Earth & Space

Are People Living on Mars? The Facts and Future Plans

What Is Beringia? The Lost Land Bridge Between Continents

How Old Are Fossilized Shark Teeth in Florida?

Bioluminescent Waves: How Long Do They Last?

Is Pyramid Lake Salt Water? The Lake’s Salinity Explained

Does Lake Natron Turn Animals to Stone?

What Is an Extraterrestrial? A Scientific Explanation

What Makes the Ocean Glow? The Science of Bioluminescence

What Is an Orthoceras Fossil & Why Is It Common?

Is the Aral Sea Coming Back? The Two-Part Answer

What Would Happen to Earth If There Was No Sun?

Is Lake Pontchartrain Saltwater or Freshwater?

What Makes Sea Shells and How Are They Formed?

Is There Breathable Air on Mars? A Scientific Look

What Are Earth’s Systems and How Do They Interact?

What Was an Ecological Change After the Permian Extinction?

Papua New Guinea: Its Land, Culture, and Unique Plants

What Happens to a Body at 13,000 Feet Underwater?

Therezopolis: Brazil’s Imperial City and Mountain Retreat

What Is the Spiritual Meaning of Granite?