Marshall's Mailbag: The Sequel

What would Earth be like if our oceans never existed? That’s what Charlie wants to know! We recruit Earth detective Lucia Perez-Diaz to help us track down clues hidden within our planet’s rocks. Our i...

10 Juni 202217min

Why do bubbles pop, and why do bubbles have shadows? We’re in double bubble trouble with two listener questions. Luckily, Dr. Bubbles is here to save the day! We’ll find out how a normal, everyman phy...

27 Maj 202217min

How many seeds sprouted in the historic Beal Seed experiment we covered in 2021? Find out in this updated version of one of our favorite episodes for spring! We tag along with scientists following a s...

13 Maj 202222min

Why do colors exist in the world? That’s what Phoebe wants to know. The answer might change how you think about the colors that you see! Neuroscientist and artist Bevil Conway bends our minds and our ...

29 Apr 202221min

Trash is one of the biggest problems on the planet. But scientists are coming up with solutions that might surprise you. In this Earth Day episode, we meet two researchers who are tackling trash in tw...

15 Apr 202219min

Where did the asteroid that killed the dinosaurs come from? That’s what our listener Lucian wants to know. Prepare to hear a “podcast movie” about the fateful impact, starting with an explosive collis...

1 Apr 202219min

Come on a trip to Dreamland, as we explore the history of dreaming - and how science changed their meaning, forever. Our guide is Sidarta Ribiero, neuroscientist and author of “The Oracle of Night.” W...

18 Mars 202218min

Why and how do cats purr? That’s what Reid wants to know. It sounds like a simple question, but it leads us to a deep challenge: Can we ever understand cats? To find out, we launch a full-scale cat pu...

4 Mars 202222min