On Today's Podcast
Tangling With Entanglement And Other Big Ideas In Physics
Physicist Sean Carroll takes on black holes, Schrödinger’s cat, and other big physics concepts that had our audience wondering.
Listen NowDecember 26, 2025
Physicist Sean Carroll takes on black holes, Schrödinger’s cat, and other big physics concepts. Plus, we revisit some of our top stories of 2025, covering research into how death metal singers safely produce extreme vocalizations, how algorithms and social media are changing language, and what we can learn from people thriving in the coldest parts of the world.
What Should I Do If My Child Has an Imaginary Friend?
More than half of kids between ages 3 and 8 will have an imaginary companion at some point. Here’s what parents should know.
The Truth About Imaginary Friends
Developmental psychologist Marjorie Taylor has turned our understanding of imaginary companions upside down.
Are We Smart Enough to Understand How Smart Animals Are?
Primatologist Frans de Waal makes a case for animal intelligence.
Dive Into the World of Imaginary Friends
What may seem like whimsical creations are much more than child’s play.
The Real Guide to Imaginary Companions: Episode 1
Developmental psychologist have pieced together an unexpectedly diverse and nuanced profile of the children who create imaginary companions, while finding out how and why they create them.
The Real Guide to Imaginary Companions: Episode 3
Research by psychologists has revealed that imaginary companions can provide glimpses into the development of critical creative, social, and cognitive skills of children.
The Real Guide To Imaginary Companions: Episode 2
A trip into the lab of developmental psychologist Jacqueline Woolley reveals how children can become so enamored with their pretend friends, that they blur the lines between real and fantasy.
What’s the Deal With Kepler?
We break down Kepler’s achievements and what’s coming next.
12:06
A Synthetic Human Genome? Not So Fast
Bioethicist Laurie Zoloth and biologist Jeff Way discuss the scientific and ethical challenges that lie ahead for large genome synthesis.
16:38
Tracking the Hidden Trail Left by Your Smartphone
How much data is being transmitted through phone metadata and third-party keyboard apps?
12:03
Dog Longevity, Depression Treatments, and the Trouble With Wolves
An old drug’s new tricks could prolong your dog’s life, plus the controversy over wild wolves and their management.
08:04
The Flight of the RoboBees
What can we learn from the quest to build a better tiny, flying robot?
17:14
Lessons From the History of the Gene
Siddhartha Mukherjee’s new book, “The Gene,” is a reminder that the history of genetics is fraught with ethical conundrums.
17:10
Physicist Sean Carroll Finds Meaning in the Chaos of the Cosmos
Does the Big Bang mark the beginning of the universe or the end of our current scientific knowledge?
Tracing Mental Illness Through a Family History
Author Siddhartha Mukherjee outlines his family’s genetic history with mental illness.
Finding Our Place in the Universe, One Discovery at a Time
Author Sean Carroll tells us how a multitude of discoveries in the last few hundred years has changed how we view our place in the universe.
Is DNA the Future of Digital Data Storage?
A team of researchers were able to store 150 kilobytes—a handful of simple emails—on a strand of DNA.
