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13 Facts About Skin
It's your body's largest organ.
SCIENCE
How to Make a Sled Go Faster, According to Science
Can science help you sled faster? Yes, it can. And even better, everything you need is already in your house.
This 'Super EKG' Could Diagnose Heart Disease in 90 Seconds
The technology was invented by a 22-year-old who dropped out of college to run the company.
IKEA's Test Kitchen Unveils Bug Meatballs and Algae Hot Dogs
Mashed potatoes and lingonberry sauce are still included.
More Evidence to Suggest That Your Insomnia Is Genetic
Blame your parents.
Why Scientists Are Hunting Down Iguanas in Florida
The state's invasive species population is out of control.
Hubble Telescope Image Shows Two Galaxies Colliding 350 Million Light-Years Away
The process will play out over millions of years.
10 Things You Might Not Know About Daylight Saving Time
It's that time of year again ...
7 Technologies That Are Revolutionizing Ocean Exploration
Cutting-edge tools that will help us understand the most unexplored regions on Earth are the focus of a new exhibition at the American Museum of Natural History.
Here's How to Get a Month's Worth of Memory Training in 30 Minutes
A short session makes a big difference if you use the right strategies.
Why Does My Skin Wrinkle in Water?
Have you ever noticed that your fingers and toes get wrinkled when you’ve been soaking in water for a while?
Why Do We Laugh?
Scientists don’t yet know all the reasons why so many different things cause us to laugh. But we do know laughter helps us to get along with each other.
Why Do Astronauts Wear Space Suits?
Space suits don’t just make astronauts look cool. Without these special suits, astronauts wouldn’t be able to leave their spacecraft.
Bad Day at Work? New Study Finds a Voodoo Doll of Your Boss Might Be the Most Effective Way of Getting Even
Just don't let your boss actually see it.
Why Are Flamingos Pink?
It’s easy to spot flamingos. These amazing birds have long, skinny legs and a long, skinny neck to match.
Why Can I Sometimes See the Moon During the Day?
The Sun comes out in the morning and sets at night, and then the Moon rises. Right? Then how come we can see the Moon during the day sometimes?
Why Do I Get Bruises?
If you bang your leg or arm hard enough, the smallest blood vessels in your body, called capillaries, can break.
Forensic Analysis Suggests Bones Discovered on a Pacific Island May Belong to Amelia Earhart
The analysis supports the theory that Earhart died a castaway.
What Is Thundersnow?
Aside from awesome, that is.
The Optimal Time to Dunk an Oreo, According to Science
Have you dunked an Oreo into a glass of milk for too long? We'll walk you through how to find (and elongate) your optimal Oreo dunk time.
10 Facts About the Dwarf Planet Makemake
The entire planet is only three times as long as the Grand Canyon.
What’s the Difference Between Type 1 and Type 2 Diabetes?
Diabetes is ultimately a hormone problem—and the odds are pretty good that you know someone with the condition.
Why Is the Sky Blue?
Kids ask a lot of questions. mental_floss has answers. Here's the next story in WHY?, our new science-based series for kids (and parents!).
Why Are There Boogers in My Nose?
Your nose makes up to a quart of mucus each day—enough to fill a small ice cream container! But some days it will be more runny.