Right Now in BrainStuff

What Is Light?

Is light a particle or a wave? Or both? Or neither? Learn how humans have defined light throughout history -- including our best attempts today -- in this episode of BrainStuff. 

How Many People Really Have Food Allergies?

There's a lot of confusion over food allergies, intolerances, and other disorders with similar symptoms. So how can you tell the difference, and how many of us should be concerned? Learn more in this episode of BrainStuff.

Can We Save the World's Coral?

Much of the world's coral is in danger, but a recently developed farming technique could help it regrow. Learn how in this episode of BrainStuff.

Why Do Coffee Drinks Often Have Italian Names?

Many popular coffee drinks in America have Italian (or faux-Italian) names, but why? Learn the history behind these names in today's episode of BrainStuff.

How Can a Star Become a Giant Crystal?

After our sun dies, it and many other stars will eventually crystallize. Learn how astrophysicists figured this out -- and how it works -- in today's episode of BrainStuff.

Do Footballs Fly Farther in Denver?

Denver's Mile High Stadium sits a full mile above sea level -- is that distance really enough to make a difference in the air compared with other stadiums, and thus in how footballs fly there? Learn more in this episode of BrainStuff. 

Are the Dare Stones Forgeries or the Key to the Roanoke Mystery?

In the 1930s, stones surfaced that might explain what happened to the settlers of the lost colony of Roanoke. Learn their story -- plus how modern science might help determine whether they're real -- in this episode of BrainStuff.

Could a Vaccine Help Save Honey Bees?

Honey bees are dying off due to a number of dangers, including bacterial diseases. Learn how researchers are hoping to help these important pollinators in today's episode of BrainStuff.

How Did the 'Green Book' Change Life for Black Travelers?

Before the Civil Rights Act made racial discrimination illegal, black Americans faced even greater dangers while on the road. Learn how a Bronx mailman made travel safer and supported black entrepreneurs in this episode of BrainStuff.

Why Is Lobster So Expensive?

Lobster hasn't always been a luxury -- and prices have the potential to drop again. Learn the history and politics behind these tasty crustaceans in this episode of BrainStuff.

What's the Biggest Building on Earth?

To create the biggest-ever airplanes, Boeing created the biggest-ever building. (Before they learned to control the temperature, clouds formed near its ceiling.) Learn more about this mammoth structure in today's episode of BrainStuff.

Why Do Bruises Change Color?

Bruises can turn a rainbow of colors before they heal -- but why? Learn the science behind color-changing contusions in this episode of BrainStuff.

Could Hemp Become America's Biggest Crop?

New legislation in the United States allows farmers to grow hemp -- cannabis's non-psychoactive cousin. Learn why this could become big business in today's episode of BrainStuff.

What's the History of Nail Polish?

The nail polishes popular today owe their existence to the automotive industry, but the history of nail colors and varnishes goes back millennia. Learn the history of nail polish in this episode of BrainStuff.

What Makes Some Lakes Explode?

Given the right depth, temperature, and access to volcanic gases, lakes can explode and kill thousands in the process. Learn how these limnic eruptions happen in this episode of BrainStuff.

Why Do Scorpions Glow Under Black Light?

Scorpions light up a glowing green under ultraviolet light. Science isn't entirely sure how but has a few theories on why. (Y'know, aside from "Scorpions are metal.") Learn more about scorpions' fluorescence in this episode of BrainStuff.

Skim Versus Whole Milk: Which Spoils Faster?

Some food safety charts claim that whole milk goes off more quickly than skim milk, but the scientific evidence is mixed. Learn more about milk science in this episode of BrainStuff.

BrainStuff Classics: Why Does Gasoline Smell So Good?

Some of you are giving this episode title serious side-eye, but believe us: some other folks think gasoline smells excellent. Delicious, even. Learn why in this episode of BrainStuff.

BrainStuff Classics: Does Eating Before Bed Give You Nightmares?

Popular wisdom holds that eating before bed -- and especially eating spicy or 'strange' food, however you define strange -- will doom you to nightmares. But is there any science behind that? Learn more in this classic episode of BrainStuff.

Our planet Earth produces a constant hum too quiet for our ears to detect, but researchers have finally captured a recording of it. Learn more about the sound, called permanent free oscillations, in this episode of BrainStuff.