Learn about fascinating stories and discoveries throughout history, from the ancient world to the modern era.
Bits of sky show through a canopy of green trees in a forest.
What Is Deep Ecology? Philosophy, Principles, Criticism
Rows of combines harvest soybeans at a farm in Mato Grosso, Brazil with green fields on the periphery.
Green Revolution: History, Technologies, and Impact
In 1881 This Strange Tricycle Was Patented
A Solar motor built by Aubrey Eneas in Pasadena, California.
Who Invented Solar Panels? Discover the History of Solar Energy
Activists demonstrating against global warming
The History of Environmental Justice in the United States
Diplocaulus, extinct amphibian from the Late Carboniferous to Permian period
What Caused the Permian Extinction?
Sandford Fleming
The Father of Standard Time Had Bigger Ideas
Archaeologists Discover Recycling System in Ancient Pompeii
How the Navajo Code Talkers Helped Win World War II
Is the End of the Movie Theater Nigh?
Why Are Some Countries 30 Minutes Off the Global Time Zone Grid?
Illustration of Sir Isaac Newton contemplating a fallen apple
5 Brilliant Mathematicians and Their Impact on the Modern World
Darwin May Have Been Wrong About the Origin of Life on Earth
Flower shop
The Language of Flowers and Herbs: 71 Plants and Their Meanings
8 of the World's Most Dangerous Daredevil Stunts
Not Long Ago, Native Parrots Lived All Over the Eastern US
9 Things You Don't Know About John Muir
​'The Real Dirt on America's Frontier Legends'
Venus May Have Once Boasted Earth-Like Temperatures, Oceans and Even Life
12 Things You May Not Know About Otzi the Iceman
12 Signs That a Hard Winter Is Coming
Cesar Chavez
10 Things You May Not Know About Cesar Chavez
10 Famous Appalachian Trail Hikers
Fisherman pulling an old bottle from fishing net
12 Amazing Message-In-A-Bottle Stories
Vera Rubin and NASA Sponsors Women Conference
10 Female Astronomers Everyone Should Know
Theodore's Cabin at Roosevelt Theodore National Park
6 Eco-Friendly Presidents
10 of the World's Biggest Unsolved Mysteries
9 Famous Female Aviators
Rhinos and Weird Elephants Once Roamed Texas
Where Did the Word 'OK' Come From?
Did You Hear About the Eggnog Riot of 1826?
To Mark Its Centennial, Finland Gives Itself the Most Finnish Gift Possible: A New Library
The Lost Towns Under Lake Murray
Overhead aerial view of winding mountain road inside colorful autumn forest
Why Does Autumn Have Two Names?
silver spider christmas ornament nestled in green Ukrainian tree
The Story Behind Spider Christmas Ornaments
Will This Century-Old Ship Go Over Niagara Falls?
forest floor filled with green ferns and bottoms of tree trunks
8 of the Oldest Forests in the World
Mayan ruins against blue sky in Tulum, Mexico
8 Ancient Environmental Disasters Caused by Humans
9 Trailblazing Female Explorers
Prince's palace of Monaco
10 Countries Where Royalty Still Rules
fruits and veggies laying on the ground
7 Fruits and Veggies That Used to Look a Whole Lot Different Than They Do Today
How Wheat Changed the World
Ancient Egyptian Tomb Turns Out to Be Crawling With Mummified Cats
10 Streets That Helped Shape America
Is This the Wildest Treasure Hunt in History? The Mystery of the Oak Island Money Pit
Do We Still Need Daylight Saving Time?
This Ale Is Brewed From 133-Year-Old Shipwrecked Yeast
The entrance to Bell Witch Cave
The Spooky History of Bell Witch Cave
6 Great Treasures Found With a Metal Detector
Looking down the middle of two rows of apple trees in an orchard
10 Things You Didn't Know About Johnny Appleseed
Teddy Roosevelt's White House Was a Real Zoo
Tipis: Everything You Ever Wanted to Know but Were Afraid to Ask
Mexico City at night during Christmas with giant lit piñata
11 Christmas Traditions We Don't Have in the U.S.
11 Cultural Traditions Protected by UNESCO
15 Legendary World's Fair Leftovers
Earth Was Probably Purple Billions of Years Ago, Says NASA
Mystery of the Solar-Powered Ghost Ship That Washed Ashore 3 Years Ago Finally Solved
bridal bouquet
The Strange and Surprising History Behind 13 Popular Wedding Traditions
Is It Time to Say Goodbye to the Circus?