
How do squirrels find their buried nuts in winter?
17/12/2025 | 16 mins.
Every fall, squirrels hide thousands of acorns—but how do they find them again in the winter? PopSci Editors Sarah Durn and Laura Baisas dig deep to bring you some answers. Read the full story that inspired this episode: https://www.popsci.com/science/how-squirrels-find-nuts/ If you have a question for a future episode, go to https://popsci.com/ask Learn more about your ad choices. Visit megaphone.fm/adchoices

What happens to your bag after you check it in?
26/11/2025 | 15 mins.
Each year, roughly 500 MILLION bags are checked at U.S airports, with only 0.4% getting lost - so how DO airlines move your bags around and keep track of them. PopSci Editors Sarah Durn and Laura Baisas go on a journey to explain it all. Read the full story that inspired this episode: https://www.popsci.com/technology/what-happens-to-your-checked-bag/ If you have a question for a future episode, go to https://popsci.com/ask Learn more about your ad choices. Visit megaphone.fm/adchoices

What is human composting?
12/11/2025 | 14 mins.
A growing number of Americans are choosing to return to earth after death—literally. Green burials, and specifically human composting, is an environmentally conscious, life-sustaining option that’s now legal in 14 states. But how does a human composting vessel work? And what exactly happens to Grandpa’s hip replacement once he’s been “recycled?” PopSci Editor Sarah Durn and Editor-in-Chief Annie Colbert dig deep to explain it all. Read the full story that inspired this episode: https://www.popsci.com/science/how-human-composting-works/ If you have a question for a future episode, go to https://popsci.com/ask Learn more about your ad choices. Visit megaphone.fm/adchoices

Why do we get goosebumps? Plus: RL Stine!
12/11/2025 | 14 mins.
Goosebumps are a valuable tool for many animals. They keep mammals with thick fur warm by trapping air near their skin, or help make them look bigger when facing off against a rival. However, in humans a wide range of emotions can also induce goosebumps. BUT WHY? Join PopSci Editor Sarah Durn and Editor-in-Chief Annie Colbert as they explain the science AND chat with Goosebumps legend, RL Stine. Read the full story that inspired this episode: https://www.popsci.com/science/why-goosebumps-happen/ If you have a question for a future episode, go to https://popsci.com/ask Learn more about your ad choices. Visit megaphone.fm/adchoices

Welcome back to Ask Us Anything from Popular Science
29/10/2025 | 0 mins.
Join us as we dive into your weirdest, most mind-burning questions–from the everyday things you’ve always wondered to the bizarre things you never thought to ask. This is… Ask Us Anything. New episodes drop every other Wednesday starting November 12, with more AUA questions and answers here: https://www.popsci.com/category/ask-us-anything/ Learn more about your ad choices. Visit megaphone.fm/adchoices

Ask Us Anything by Popular Science