June 27, 2025
In his new book, a former FDA commissioner unpacks the latest science on metabolism, weight loss, and how GLP-1 drugs actually work. Plus, the first images from the brand new Vera C. Rubin Observatory have finally been unveiled. And, researchers have observed a population of orcas that use kelp tools to scratch their backs.
5:55
Birdie in Flight
The aerodynamics of the badminton birdie, along with a complex chain of movements executed by players, enables it to reach 200 mph.
23:12
John McPhee Assembles California
In this 1993 interview from the Science Friday archives, writer John McPhee talks plate tectonics and global geology.
23:43
SciFri Live: Science Movie Quiz
You may know science, but how well do you know movie science?
Birdie In Flight: The Science of Badminton
The key to the badminton’s speed is the unique aerodynamic shape of the birdie and the kinetic movements by players.
The Fight Against Blight: Restoring the American Chestnut
Researchers have developed a blight-resistant species that’s nearly identical to the American chestnut tree.
Christmas Tree Combustion
A home holiday experiment that explores combustion using festive fuels such as fir, pine, spruce, and cedar.
11:54
Does Mars Have What It Takes to Support Life?
NASA’s Curiosity rover finds evidence of methane and organics on the Red Planet.
23:12
Scientists Speak Out About Attacks on Science
Bioengineer John Dabiri and conservation biologist Terrie Williams, two targets of Senator Tom Coburn’s 2014 “Wastebook” look beyond the caricatures painted by politicians and pundits to tell the story of their research.
9:21
Weighing In on the ‘Good Carb, Bad Carb’ Debate
Curbing “high glycemic” carbs may not benefit healthy eaters.
7:09
Under The Influence Of Beer Foam
A team of fluid mechanics researchers at Princeton University dive into the anti-sloshing physics of foam.
7:20
Moving Ice May Mean More Melting for Greenland
By 2060, Greenland’s seasonal “supraglacial” lakes will double in number and move farther inland.
22:09
Science Goes To The Movies: ‘The Imitation Game’
SciFri’s scientist-film critics weigh in on the Alan Turing biopic.
10:53
Making Space a More Democratic Place
What if anyone could 3-D-print a satellite in space? Or jet from the Earth to the Moon, using just the hydrogen found in a two-liter bottle of water?
Under The Influence Of Beer Foam
A team of fluid mechanics researchers at Princeton University dive into the anti-sloshing physics of foam.
Peek Inside A Mechanical Calculator
This machine was a predecessor to the electronic calculator.
SciFri Book Club: Vote for a Book to Beat the Winter Blues
Help the SciFri Book Club pick its next book.
Five Books Guaranteed To Make Kids Love Science
These kids’ books spark science curiosity with playful illustrations and facts to match.
Recipe: Jeff Potter’s Patent-Violating* Chocolate Chip Cookies
How to make cookies that stay chewy on the inside with crispy outer edges.
11:52
Evidence Mounts for Liquid Water on Mars
NASA reveals new evidence for a large lake that could have existed for millions of years on Mars.
17:22
Alan Alda Challenges Scientists to Answer: What Is Sleep?
Alan Alda’s Flame Challenge asks scientists to answer the big questions that keep them up at night to 11-year-olds around the world.