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 NowJanuary 2, 2026
A look back at the biggest science stories of 2025, and a few you may have missed. Plus, 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? And, ultramarathoners can run with what seems like superhuman stamina. But are their bodies much different than the rest of ours?
12:10
Nighttime Streetlights Are Stressing Out Urban Insects
New findings suggest that streetlights are contributing to the decline of insect populations.
17:32
The Endemic End To The Pandemic
Will the COVID-19 pandemic eventually shift to an endemic stage?
17:24
Charismatic Creature Carnival: Who Rules The Night?
Two fuzzy creatures of the night, the opossum and the aye-aye, battle it out during the Charismatic Creature Carnival.
16:47
With Worsening Wildfire Seasons, How Can We Learn To Live With Them?
A fire scientist on how we can change our relationship with fire.
Earn P.D. Certificates At SciFri’s Educator Phenomena Forum
On November 4, K-12 STEM teachers are invited to Science Friday’s free professional development series, this time all about space!
Science Diction: Knock On Wood And Tsunami
The origin of a superstitious phrase, and a Japanese word that’s staked its place in English.
Preview: The Science Friday Book Club Reads ‘Rising’
Elizabeth Rush explores climate change, flooding, and its effects on vulnerable communities in ‘Rising.’ We’ll read it together this fall.
Gathering From Coast To Coast Around Climate Change
This October, The SciFri Book Club team is gathering to explore this fall’s Book Club pick, ‘Rising: Dispatches from the New American Shore.’
What Coastal Retreat Looks Like On Isle de Jean Charles
On an island shrinking from rising seas, Indigenous communities battle to save their historic land from coastal flooding.
11:26
New Policies Emerge In The Wake Of Climate-Connected Disasters
With fires still burning in the west and gulf states still recovering from Ida, President Biden unveils an expanded solar energy policy.
14:21
Is Inflammation In The Brain Causing Alzheimer’s Disease?
Scientists once thought inflammation as a symptom of Alzheimers. But it might actually be the driver of the disease.
2:57
The World According To Sound: Ultrasonics
The podcast ‘World According To Sound’ invites you to throw on headphones and imagine yourself as a katydid on the floor of Panama’s forests.
16:08
How COVID-19 Reveals Existing Biases Against The Disability Community
Disability advocates feel let down by California’s pandemic response—and are fighting for more equal treatment.
12:08
To Breed An Oyster
As climate change shifts ocean chemistry, persuading oysters to breed helps scientists understand how they may be impacted.
17:19
Talking Through The Tangled Terms Of Climate Change
A new report finds that the words and phrases scientists use to talk about the climate crisis are frequently misunderstood.
16:53
An Aquatic Charismatic Creature Showdown: Mantis Shrimp Vs. Hellbender
Getting wet and wild with our first week of the Charismatic Creature Carnival.
How The Humble Asiatic Dayflower Revealed Clues To Blue Hues
This briefly-blooming plant gave Japanese artists a distinctive dye—and helped scientists answer a color chemistry mystery.
Your Vote Counts In The Charismatic Creature Carnival!
Are you ready to vote for this month’s most Charismatic Creature? After you hear from our experts, cast your ballot!
Meet Science Friday’s Sixth Cohort Of Educator Collaborators
Meet our sixth cohort of Science Friday Educator Collaborators and the learning experiences they created from Science Friday stories.
12:06
Nation Grapples With Several Climate Disasters At Once
While wildfires blaze out west, Hurricane Ida wallops the eastern United States, more evidence that extreme weather is tied to climate change.