February 7, 2025
Some research shows that e-cigarettes can be a useful tool for quitting cigarettes, but that strategy is hotly contested by scientists. Plus, an investigative journalist outlines how fraud and misconduct have stalled the search for effective Alzheimer’s treatments in a new book. And, why snow has that crisp, clean smell.
11:58
Tricking Tumor Cells to Accept a Lethal Payload
A new method convinces cancer cells to gobble up a ball of poison and ferry it directly to the cell nucleus.
26:19
Teaching Climate Change Science in the Classroom
A panel of education experts discuss challenges and approaches to teaching climate change science in the classroom.
8:34
Investigating Sea Level Rise on a Local Level
Researchers estimate as 13.1 million U.S. residents could be displaced by rising sea levels by 2100.
16:59
The Laws of Nature, From the Sea to the Savannah
In his latest book, The Serengeti Rules, biologist Sean B. Carroll tells of some of the greatest experiments in ecology.
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.
In the Serengeti, Clues to Life’s Persistence on Earth
Sean B. Carroll connects cell regulation at the molecular level to rules that govern the Serengeti ecosystem.
How Do You Create Moral Robots?
As we move towards self-aware artificial intelligence, engage students in discussion and writing about teaching robots the difference between right and wrong.
How Do You Teach a Robot Right From Wrong? Story Time.
Stories are a great medium for communicating social values.
What Places on the Planet Would You Save?
We compiled your responses into an interactive map.
Botanicals In Blue: A Victorian Woman’s Take On Algae
Anna Atkins, the first person to publish a book of photography, showed a predilection for botany.
Great Salt Lake’s Earthen Spiral
You can only see this artwork when the water level of Utah’s Great Salt Lake is below average levels.
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.
To Stave Off Extinction, Make Half of Earth a Nature Reserve
E.O. Wilson says that the political and practical mechanisms to make half the world into a nature reserve already exist.