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May 17, 2024
The latest breast cancer screening guidelines move the recommended age to start mammograms from 50 down to 40. How are these decisions made? Plus, early data from the DESI collaboration suggests that dark energy, which powers the universe’s accelerating expansion, may evolve over time. And, scientists are breeding wine grapes that will grow in Iowa’s climate in hopes of expanding the state’s wine industry.
How Science Can Keep Your Christmas Tree Merry and Bright
Rick Bates, of Penn State University, shares handy tips for how to care for your Christmas tree.
Alan Alda’s Challenge to Scientists: What Is Time?
Calling all scientists! How do you explain the concept of time to an 11-year-old?
Curiosity 2.0? NASA Announces New Mars Rover Plans
NASA officials weigh in on the flurry of planetary science news from the past week.
Ask an Astronaut: Don Pettit and Jeff Hoffman on Spaceflight
Two astronauts answer your questions and discuss the many curiosities of living in space.
Unlocking a Lake’s Bacterial Secrets, Beneath 20 Meters of Ice
Bacteria locked under Antarctic lake ice may shed light on life’s limits, and the possibility of life on other worlds.
Blue Whale Barrel Roll Caught on Camera
Biologists are using data tags and a National Geographic Crittercam to study the dining habits of the largest animal on the planet.
‘Escape Fire’ Exposes Flaws of American Healthcare
The film tells the stories of a soldier addicted to painkillers, and a doctor with no time for her patients.
No Joke — Why Even Tragedy Gets a Laugh
A comedian and a neuroscientist walk into a bar… er, nevermind. Tig Notaro and Robert Provine talk about why we laugh at even the grimmest of subjects.
SciFri Book Club Has ‘The Right Stuff’
Join the SciFri Book Club regulars for a look back, er…up, at ‘The Right Stuff.’
Photographer James Balog on Climate Change and ‘Chasing Ice’
A new documentary explores how climate change is affecting the world’s glaciers.