Why is space so dark if it’s full of sta...

Tumble is a science podcast created to be enjoyed by the whole family. With over 100 episodes over 7 seasons, Lindsay and Marshall have explored science topics ranging from poop, to space, to animals, and literally everything in between. In their 8th season, coming up this Septem ... Show More

Tai tries to do his part by recycling whenever he can. But it turns out just tossing stuff into the blue bin doesn't do a whole lot: less than 10 percent of our plastic waste actually gets recycled, with the rest either ending up in landfill, burned or shipped overseas! How did w ... Show More

Laughing makes us feel real good, whether you’re in on the joke or not. But does it serve a specific purpose? Why do we find some jokes hilarious and others to be total groaners? In this episode, Tai peels the science and sociology of laughter down to its evolutionary roots. In t ... Show More

But Why explores the Big Bang, earth, stars and black holes in this call-in episode that aired live on Vermont Public Radio. Astronomer John O'Meara tackles the big bang, the origins of the universe and how we know humans landed on the moon. Plus, why is the earth round? What is ... Show More

The solar system is big, the distances between stars bigger, and the distance to the center of the galaxy in which we live is even bigger than that. But all of that is tiny compared to the distance to the edge of the known universe! Just how big is that? The Math Dude breaks it a ... Show More

There are lots of stellar songs about the night sky, but one of the most popular is this one: Twinkle, twinkle little star, how I wonder what you are. Have you ever wondered why stars twinkle, though? We asked astronomer Mark Popinchalk to help us find the answer. Got a question ... Show More

A century ago, astronomers were locked in a debate about the scope of our universe. Were we it? The answer is no. There are other galaxies beyond the Milky Way, and they are speeding away from us. Answering that question left astronomers with an even bigger puzzle. Why is everyth ... Show More

When you look up at the night sky, what do you see?  A few stars, or a satellite, maybe even one of the seven other planets in our solar system?  But how many planets are there in all of outer space? We asked astronomer Mark Popinchalk to help us find the answer! Got a question t ... Show More

Black holes are one of the strangest things in space: gravity is so strong that nothing gets out, not even light, so learning about them is a big challenge for scientists. If black holes “eat” everything around them, could one black hole eat another black hole? We talked with ast ... Show More