On Today's Podcast
Your Cells Are Always Building A Whole New You
Over the past year, most of your body has replaced itself cell by cell. What can we learn from other animals’ dramatic feats of regeneration?
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.
5:04
An Ambitious Plan To Build Back Louisiana’s Coast
The state will receive $2 billion dollars to reconnect the Mississippi River to its nearby marshes, but local shrimpers and oyster harvesters aren’t convinced.
11:39
Stop Flushing Your Health Data Down The Toilet
Smart toilets are powered by AI to give users more insight into their health.
17:12
50 Years Later, Reflecting On The Treaty That Controls Wildlife Trade
CITES, the pioneering international treaty ratified 50 years ago, aimed to regulate trade in wildlife species—and it’s still expanding.
10:42
This Skin-like Robot Can Heal Itself
A new, soft robotics material could usher in self-repairing prosthetics.
6:10
Naked Mole-Rats Are Eternally Fertile
Understanding how naked mole-rats are fertile for their whole lives may help answer questions about human reproduction.
16:50
Balancing The Good And Bad Of Phosphorus
This critical element has been crucial to farming—and is also responsible for causing massive toxic algae blooms.
Mining For The Phosphorus Locked In Ancient Poop
Scientists once looked to fossilized feces to help fertilize new agriculture fields. But do the costs outweigh the benefits in the longterm?
The Power Of Phosphorus: ‘The Devil’s Element’ Author Q&A
On April 27, join our event with the author of ‘The Devil’s Element’ about our long history with elemental phosphorus.
11:25
Despite Superconductor Breakthrough, Some Scientists Remain Skeptical
The new superconductor has exciting potential uses, but the team behind the breakthrough recently had another superconductor study retracted.
8:16
Can Utah’s Great Salt Lake Be Saved Before It’s Too Late?
The lake’s water level has significantly declined since the 1980s. But local scientists and politicians are optimistic they can save it before it’s too late.
25:15
Exploring A New Theory About Dark Energy’s Origins
Astrophysicists are divided over a new theory suggesting dark energy comes from supermassive black holes.
42:20
Tips And Tricks To Grow Your Garden In A Changing Climate
Horticulturists weigh in on how you can best adapt your garden to new extremes.
How Utah Scientists Rang The Alarm About The Great Salt Lake
The shrinking Great Salt Lake puts Utah at risk of an ecological and public health emergency. Local scientists are stepping up, sharing actionable steps to help save it.
Celebrate Our Planet At An Interactive Science Fair For Kids
On April 18, join the SciFri team at WBUR CitySpace in Boston for a science fair for the climate, designed for kids and families.
11:57
Insulin Maker Eli Lilly Finally Caps The Drug’s Cost
The drug will be capped at $35, making it more accessible to the people who need it most.
17:27
The Lasting Allure Of Shackleton’s ‘Endurance’
The maritime archeologist who found the storied wreck discusses the mission and his new book.
12:18
Inside The ‘Chaos Machine’ Of Social Media
Author Max Fisher takes a deep dive into how big tech has accumulated so much unchecked power.
8:51
Taking On Renewables’ AC/DC Disconnect
A project aims to make large-scale solar plants more efficient and reliable.
8:17
Are These Ancient Galaxies Too Big For Their Age?
Tiny red dots observed by the Webb telescope have some astronomers pondering theories of galactic formation.
7:22
How These Russian Wasps Could Help Save Ash Trees
Scientists recruited the help of the emerald ash borers’ natural predator to keep their population in check.