Stars: Twinkling, glowing, giant balls of gas

The hair on our heads is on our minds. We have fun with follicles and learn about how they make hair. Our experts help us decipher what makes hair black or brown, blonde or red, and even why it turns gray. From eye lashes to ear and nose hair, this episode has it all. Why do huma ...  Show more

This is a sneak peak of a bonus episode available to Smarty Pass members. It’s a follow up to our Forever Ago episode on the history of pizza. In this one, we look at the man who made pineapple on pizza a thing. Plus, we tell the story of how pineapple pizza created drama between ...  Show more

Like most things in the universe, stars begin as particles floating around in massive clouds of dust and gas. But what forces these particles to coalesce and form a star? Tune in and learn more about the birth of stars in this podcast.

One of the brightest stars in the sky, Betelgeuse, has been getting dimmer and dimmer. Could this be a sign that the young star is about to explode? Join Mindy and Guy Raz as they travel light years into the future to see for themselves! It's the Who, What, When, Where, Why, How, ...  Show more

Tai is fascinated by what’s in the dark spaces between the stars. Considering there are trillions of stars in the universe (and counting!), it seems a bit odd that the universe isn’t just a blinding ball of light. So then, why is space so dark? For transcripts of this series, ple ...  Show more

Twinkle twinkle little star, how I wonder what you are...what are the stars up in the sky made of? We can get a closer look using our imaginations! Come along with Caitie on an imagination adventure through outer space exploring stars, constellations, and the sun. For more fun re ...  Show more