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10 Ways to Cool Your Roof

10 Ways to Cool Your Roof

Our Top Reads

Been Told You're Too Sensitive? You Might Be an Empath

May 25 By Alia Hoyt

Alpha-gal Syndrome: The Meat Allergy Caused by a Tick

May 25 By Jesslyn Shields

New Tau Herculids Meteor Shower May Dazzle – or Disappoint

May 25 By Valerie Stimac

Cheese Rolling Is No Joke. But It's Still Pretty Funny

Cheese Rolling Is No Joke. But It's Still Pretty Funny

NOAA Predicts Seventh Straight 'Busy' Atlantic Hurricane Season

NOAA Predicts Seventh Straight 'Busy' Atlantic Hurricane Season

What Do Turtles Eat?

What Do Turtles Eat?

What Do Digits in Phone Numbers Mean?

What Do Digits in Phone Numbers Mean?

Try Our Crosswords, Riddles and Puzzles!

Can You Solve This Riddle?

Can You Solve This Riddle?

Try Our Crossword Puzzles!

Try Our Crossword Puzzles!

Can You Solve This Riddle?

Can You Solve This Riddle?

In the News

Scientists Make History by Growing Plants in Soil From Moon

May 19 By Kimberly M. S. Cartier

Monkeypox Confirmed in the U.S. and Europe. What You Need to Know

May 19 By Joanna Thompson

Going Nowhere Fast? Smart Traffic Lights Can Help Ease Gridlock

May 18 By Patrick J. Kiger

Hot Wheels Debuts Wheelchair Toy With Paralympian Aaron "Wheelz"

May 18 By Sarah Gleim

Drought, Climate Change Threaten the Future of U.S. Hydropower

May 17 By Lauren Dennis, Caitlin Grady

How to Brainstorm Brilliant Ideas in Teams

May 16 By Sabrina Habib

What to Do When You're Out of Baby Formula

What to Do When You're Out of Baby Formula

How White Matter Helps the Brain's Gray Matter Function

How White Matter Helps the Brain's Gray Matter Function

Did You Hear?

Leopard Seals Are Apex Predators of the Antarctic

Leopard Seals Are Apex Predators of the Antarctic

13 Iconic Photographs That Captured the World's Imagination

13 Iconic Photographs That Captured the World's Imagination

Why Teen 'Death Discs' Dominated the Airwaves in the '60s

Why Teen 'Death Discs' Dominated the Airwaves in the '60s

'The Alcatraz of the Rockies': Why No One Ever Escapes From ADX Florence

'The Alcatraz of the Rockies': Why No One Ever Escapes From ADX Florence

Utahraptor: The Salty Saga of a Killer Dinosaur

Utahraptor: The Salty Saga of a Killer Dinosaur

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Editor's Picks

10 Ways to Make Money on the Side

10 Ways to Make Money on the Side

Viktor Frankl's 'Search for Meaning' in 5 Enduring Quotes

Viktor Frankl's 'Search for Meaning' in 5 Enduring Quotes

10 Big Questions in the U.S. Gun Control Debate

10 Big Questions in the U.S. Gun Control Debate

$ymbols!

Call It Arroba, Kukac or Strudel: The History of the @ Sign

Call It Arroba, Kukac or Strudel: The History of the @ Sign

The @ sign is so much a part of the internet that it may surprise you to know it's been around for at least 1,500 years.

The Hamsa Symbol Is Found in Many Cultures, But What Does It Mean?

The Hamsa Symbol Is Found in Many Cultures, But What Does It Mean?

The Fascinating Stories Behind 5 of the World's Big Currency Symbols

The Fascinating Stories Behind 5 of the World's Big Currency Symbols

What's the Deal With Those Laundry Symbols?

What's the Deal With Those Laundry Symbols?

The Peace Sign: From No Nukes Logo to Anti-war Symbol

Trailblazing Women

Kathrine Switzer: The First Female to 'Officially' Run the Boston Marathon

Kathrine Switzer: The First Female to 'Officially' Run the Boston Marathon

Annie Londonderry Bicycled Around the World and Into the Record Books

Annie Londonderry Bicycled Around the World and Into the Record Books

Why Annie Oakley Was America's Sharpshooting Sweetheart

Why Annie Oakley Was America's Sharpshooting Sweetheart

Jane Goodall: A Global Face for Global Peace

Jane Goodall: A Global Face for Global Peace

Bessie Coleman: America's First Black Female Aviatrix

Bessie Coleman: America's First Black Female Aviatrix

You've heard all about the exploits of Amelia Earhart, but do you know the story of Bessie Coleman, the first Black American woman to receive a pilot's license?

UFOs and Aliens!

How Do You Become a Ufologist?

How Do You Become a Ufologist?

If you're considering a hobby or career as a "ufologist" or paranormal investigator, there are a handful of routes that don't involve being personally abducted or applying to a secret government shadow agency.

How the Fermi Paradox Works

How the Fermi Paradox Works

The Zoo Hypothesis: Are Aliens Watching Us Like Animals in a Zoo?

The Zoo Hypothesis: Are Aliens Watching Us Like Animals in a Zoo?

Does the Real Element 115 Have a Connection With UFOs?

Does the Real Element 115 Have a Connection With UFOs?

How Area 51 Works

How Area 51 Works

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