Why is the sky blue? We get an answer from a science writer for NASA’s Space Place. And what are Saturn’s rings? Carolyn Porco of the Cassini Imaging Team explains.

In this episode of But Why we’re learning how to make paint from an artist who wild-crafts his own pigments, and we’re visiting the Isabella Stewart Gardner Museum to learn about the value of art.

We hear from a scientist about asteroids, supernovas and the sun, and from two writers about what they imagine the end of the world will be like.

In our very first episode, we’ve got owls and turtles and bears, oh my! It’s all about animals.

Dr. Krutika Kuppalli, assistant clinical professor of infectious diseases at the Medical University of South Carolina, returns to answer questions about the things we can do to keep ourselves and those around us safe. And we’ll learn about what vaccines are, how they’re developed and the accelerated process for developing a coronavirus vaccine.

In this episode of But Why, we’re talking about plants with garden consultant Charlie Nardozzi.

In this episode, St. Michael’s College astronomy professor John O’Meara answers how the Mars rover is driven from back here on earth?

Does looking at this cat make you yawn? Why are yawns contagious? It may be because humans are social animals.

Why do your fingers and toes turn wrinkly in the tub? No one really knows, but in this episode of ‘But Why’, we learn two of the theories and answer a bunch of your body questions!

Inside each corn kernel is a tiny droplet of water. When that water turns to steam, softening the endosperm. Then the pressure blows the husk open.

Taza Chocolate, a “bean-to-bar” chocolate maker, starts out with cocoa beans and ends up with bars of chocolate.

Clouds, thunderstorms, snow, even tornadoes, the weather is all around us. This episode of But Why has answers to all of your weather questions.

Some of our tastes in food are determined by our genetics, but culture, memory and parental coercion all play a role.

Geese fly in a V formation to take advantage of the windbreak provided by the lead bird. They take turns at the head of the V.

We’re heading to the coast of Maine to learn a little bit about why the sea is salty, how mussels get their shells and how model ships get in those glass bottles.

In this episode, we’re learning about cheetahs and horses with two questions from siblings in Australia.

Arthropods, including bumblebees have a heart that’s like a straw running down their back. Their open circulatory system bathes their organs with blood.

Olympian Lea Davison tells how to get started when riding, and we learn how a bike chain moves a wheel.

We learn about chainsaws from Ashleigh Belrose, an instructor the Center for Technology in Essex, Vermont.

Leaves turn from green to yellow and orange in the fall. The color has been their all along, but was masked by cholorphyll.