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Listen to Science Friday live on Fridays from 2-4 p.m. ET
February 28, 2025
A federal DEI ban is already prompting changes across science agencies. How will it affect medical research? A journalist traveled to five continents to learn about the afterlife of our trash, and why most “recyclable” plastic actually isn’t. And, the ocean liner SS United States will become an artificial reef in Florida. How do artificial reefs work?
16:44
‘A Space Program’ Documents a DIY Journey to Mars
Sculptor Tom Sachs has built his own space program—and it’s 100 percent DIY.
12:11
Uterus Transplant, Missing Lizard Link, and a Sea Level Solution
Failure of the first uterus transplant in a patient in the United States, and an outside-the-box approach to coping with rising sea levels.
2:20
How Many Digits Of Pi Do We Really Need?
Mathematician James Grime of the YouTube channel Numberphile has determined that 39 digits of pi should suffice.
17:23
The Homogenous History of Processed Cheese
A dairy scientist unwraps the history of processed cheese, and the simple chemistry that DIY chefs can use to make it at home.
13:43
The Ultimate Parallel Processor: Quantum Bits
The world’s most time-consuming calculations could someday be solved by quantum computers.
21:26
Ask an Ophthalmologist: Bringing Your Eye Questions Into Focus
Ophthalmologists Lisa Park and Anne Sumers address queries about eyes and vision.
16:48
The Bacteria Behind Your Favorite Blues, Bries, and More
Microbiologist Rachel Dutton discusses the bacterial battle behind the tastes and textures of cheese.
07:55
Researchers Set Their Sights on Ocular Stem Cell Therapy
Researchers used stem cells to grow eye tissues in petri dishes and regenerate lenses inside of the body.
11:50
Cancer Immunotherapy, Fear in the Natural World, and Abolishing Time Zones
Fine-tuning cancer immunotherapy and the good and bad of eliminating time zones.
17:26
Inside NASA’s Planetary Defense Office
How does NASA plan to protect the planet against an asteroid or comet strike?