May 2, 2025
An astronomer explores the cosmos and the limits of what science can test. Plus, how the mysterious properties of pasta—like how it bends, coils, and breaks—have been tested by physicists for decades. And, millions of years ago, iguanas somehow got from North America to Fiji. Scientists think they made the trip on a raft of fallen vegetation.
12:06
Scientists Potty Train Cows To Lower Greenhouse Gasses
The ‘MooLoo’ is the latest idea to make cows more environmentally friendly.
12:01
Do I Really Need 10,000 Steps A Day? Scientists Say 7,000 Is Fine
It turns out “getting your steps” is more than a trope. New research finally backs up the health benefits of walking.
4:07
NASA Scientist Answers Kids’ Questions About The Mars Rover
A NASA research scientist answers questions from kids about the Perseverance Mars rover, like how its samples will get back to Earth.
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.
Book Club: ‘Rising’
Dive in with environmental journalist Elizabeth Rush on climate change, coastal flooding, and its effects on communities around the country.