15 Famous Astronauts Who Expanded Our Universe

15 Famous Astronauts Who Expanded Our Universe

Our Top Reads

The Katydid Is a Vibrant Master of Disguise (and Nocturnal!)

By Talon Homer

What Do Lizards Eat in the Wild? What Should You Feed a Pet Lizard?

By Nico Avelle

9 Harley Davidson Frame Types Rumbling Down the Highway

By Talon Homer

12 Nocturnal Animals: List of Creatures That Thrive at Night

12 Nocturnal Animals: List of Creatures That Thrive at Night
9 Blue Butterfly Species You Won't Believe Are Real

9 Blue Butterfly Species You Won't Believe Are Real
What Do Lions Eat in the Wild?

What Do Lions Eat in the Wild?
The Worst Flood in History (and 9 Other Catastrophic Floods)

The Worst Flood in History (and 9 Other Catastrophic Floods)

Try Our Crosswords, Riddles and Puzzles!

Can You Solve This Riddle?

Can You Solve This Riddle?
Play Our Crossword!

Play Our Crossword!
Can You Solve This Riddle?

Can You Solve This Riddle?

In the News

The Copperhead Snake Is Seldom Lethal But Always Venomous

April 13 By Zach Taras, John Perritano

Rube Goldberg: The Man Behind the Ingenious Contraptions

April 10 By Stell Simonton

Oedipus Complex: Digging Into Freud's Controversial Theory

April 10 By John Donovan

Neuschwanstein Castle: The Real Story Behind the Fairy-tale Fortress

April 10 By Dave Roos

The Ring of Fire Is the Pacific's Volcanic Hotspot

April 10 By Mark Mancini

What Is Zionism and Is It Fueling the Palestinian-Israeli Conflict?

April 9 By Dave Roos

How to See and Delete Your Google History

How to See and Delete Your Google History
What Does It Mean When Someone Says 'That's Just Semantics'?

What Does It Mean When Someone Says 'That's Just Semantics'?

Did You Hear?

Ox vs. Bull: Born to Breed or Born to Work?

Ox vs. Bull: Born to Breed or Born to Work?
The Biggest Frog in the World (Plus 11 Massive Contenders)

The Biggest Frog in the World (Plus 11 Massive Contenders)
Stoat: A Petite, Scrappy and Irresistibly Soft Speedster

Stoat: A Petite, Scrappy and Irresistibly Soft Speedster
The Tri-State Tornado of 1925 Traveled Over 200 Miles

The Tri-State Tornado of 1925 Traveled Over 200 Miles
10 Types of Fish You'll Find on Restaurant Menus

10 Types of Fish You'll Find on Restaurant Menus

Science

What Is Avogadro's Number?

What Is Avogadro's Number?
Crinkle Crankle: The Serpentine Wall With a Funny Name

Crinkle Crankle: The Serpentine Wall With a Funny Name
A Brief Overview of 12 Different Home Styles

A Brief Overview of 12 Different Home Styles
Tanzanite Is Africa's Real Blue Diamond

Tanzanite Is Africa's Real Blue Diamond

Culture

How the Pledge of Allegiance Went from Marketing Ploy to Classroom Staple

How the Pledge of Allegiance Went from Marketing Ploy to Classroom Staple
Anne Bonny: A Real Female Pirate of the Caribbean

Anne Bonny: A Real Female Pirate of the Caribbean
Is the Ramree Island Crocodile Massacre a Myth?

Is the Ramree Island Crocodile Massacre a Myth?
5 Worst Nuclear Disasters in the World

5 Worst Nuclear Disasters in the World

Animals

Sea Spiders Breathe Through Pores in Their Legs

Sea Spiders Breathe Through Pores in Their Legs
A Greenland Shark Living Today Could Have Been Alive in 1620

A Greenland Shark Living Today Could Have Been Alive in 1620
Why Chicken Egg Colors Vary From Bird to Bird

Why Chicken Egg Colors Vary From Bird to Bird
Where Do Axolotls Live and Why Do They Look So Strange?

Where Do Axolotls Live and Why Do They Look So Strange?

Auto

How Traffic Lights Detect Cars Are Waiting for the Light to Change

How Traffic Lights Detect Cars Are Waiting for the Light to Change
The Aston Martin: From the DB1 to DB7

The Aston Martin: From the DB1 to DB7
How Do Exhaust Headers on a Car Work?

How Do Exhaust Headers on a Car Work?
Who Does — and Doesn't — Get Featured on Blue Highway Exit Signs?

Who Does — and Doesn't — Get Featured on Blue Highway Exit Signs?

Editor's Picks

The Sun Spider Is an Arachnid but Not an Actual Spider

The Sun Spider Is an Arachnid but Not an Actual Spider
Did You Know There Are 23 Countries in North America?

Did You Know There Are 23 Countries in North America?
The Richest Family in the World Heads a Massive U.S. Chain

The Richest Family in the World Heads a Massive U.S. Chain

A River Runs Through It

The 9 Longest Rivers in the World: From the Nile to the Congo

The 9 Longest Rivers in the World: From the Nile to the Congo
Eco Engineers: 5 Animals That Can Reshape Earth's Waterways

Eco Engineers: 5 Animals That Can Reshape Earth's Waterways
River-bottom Bones: The Strange World of Underwater Fossil Hunting

River-bottom Bones: The Strange World of Underwater Fossil Hunting

Get Your Garden On

How 'Lasagna Gardening' Helps Create Healthy Soil

How 'Lasagna Gardening' Helps Create Healthy Soil
How Composting Works

How Composting Works
Companion Planting: The Do's and Don'ts of Growing Plants Together

Companion Planting: The Do's and Don'ts of Growing Plants Together

Deserts of the World

5 of Earth's Highest Deserts

5 of Earth's Highest Deserts
10 Largest Deserts in the World

10 Largest Deserts in the World
Hunting for Martians in the Most Extreme Desert on Earth

Hunting for Martians in the Most Extreme Desert on Earth