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The Many Surprising Things Your Fingernails Can Tell You

The Many Surprising Things Your Fingernails Can Tell You

Important clues to stress, liver disease, vitamin deficiency and several other conditions—even past experiences—may be right at your…
Go to the profile of Annie Foley
Annie Foley
California Wildfire Makes… Rain and Hail?

California Wildfire Makes… Rain and Hail?

First a heat wave, then fires, now fire thunderstorms
Go to the profile of Robert Roy Britt
Robert Roy Britt
The Pandemic Problem: Humans Infect Animals Infect Humans Infect…

The Pandemic Problem: Humans Infect Animals Infect Humans Infect…

Infectious diseases hop from animals to humans and back again, giving pathogens multiple chances to evolve and spread even further
Go to the profile of The Conversation U.S.
The Conversation U.S.
100 Straight Days of 100+ Degrees

100 Straight Days of 100+ Degrees

One US city sets an outlandish record that reflects dangerously rising temperatures across the planet
Go to the profile of Robert Roy Britt
Robert Roy Britt
Coming Sept. 18...
Supermoons: When Optical Illusion and Reality Converge

Supermoons: When Optical Illusion and Reality Converge

See for yourself, when yet another of four 2024 supermoons looms huge on the horizon
Go to the profile of Robert Roy Britt
Robert Roy Britt
About Aha! Science

About Aha! Science

Aha! celebrates science by revealing amazing discoveries and images from our world and beyond and exploring life’s most intriguing, strange…
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Robert Roy Britt
Most Read Stories of All Time
How Often Should You Poop?

How Often Should You Poop?

Frequency varies dramatically with the type of pooper you are
Go to the profile of Dr. Julian Barkan
Dr. Julian Barkan
How Often Should You Pee?

How Often Should You Pee?

What ‘having to go’ says about your health
Go to the profile of Robert Roy Britt
Robert Roy Britt
What Causes Bad Breath?

What Causes Bad Breath?

New science uncovers the exact cause of halitosis. Here’s how to avoid it.
Go to the profile of Annie Foley
Annie Foley
My Wife is a Mosquito Magnet. I’m Not. Why?

My Wife is a Mosquito Magnet. I’m Not. Why?

Some people just naturally attract mosquitoes. However, certain things can make anyone significantly more attractive to them.
Go to the profile of Warren Thurlow
Warren Thurlow
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