April 18, 2025
Are traffic engineering decisions based on evidence-based research? Not as much as you might think. Plus, researchers captured the first confirmed video of a colossal squid swimming in its natural habitat. And, with brain-implanted devices, people with paralysis have been able to command computers to “move” virtual objects and speak for them.
14:01
The Cellular Superpowers That Heal Skin and Regrow Limbs
“Brains On,” a science podcast for kids and curious adults, tackles the question: How do axolotls regrow limbs?
12:02
Solar Wind Strips Martian Atmosphere, Diamond Dirt, and the Whole Story on Milk
NASA’s MAVEN Mission uncovers why the Martian climate may have changed. Plus, reassessing fatty milk’s reputation.
26:41
Is Football Bad for Your Brain?
Concern about the long-term repercussions of football are on the rise due to cases of chronic traumatic encephalopathy, or CTE.
06:26
The Science Club Tackles a Communications Challenge
This season’s Science Club project asks you to invent your own communications device.
The Science Club #MessageChallenge
Invent a device or system that can send or carry a message from one place to another.
The Origin Of The Word ‘Vaccine’
This world-changing tool of immunization got its name from a cow virus.
Smelly Bats
A fun game for Halloween that demonstrates diffusion and the properties of stretchy polymers using rubber gloves and flavor extracts.
Monster Microbiology, 101
If werewolves and other ghouls existed, they’d surely have microbiomes.
12:08
Red Meat Ruckus, Electrifying Eels, and Sugar Overload
Science writer Ed Yong deciphers the WHO’s red meat announcement and explains how electric eels immobilize prey.
26:29
Monster Microbiome Mash
Just in time for Halloween, scientists Rob Dunn and Amanda Hale imagine what the microbiomes of werewolves, vampires, and other monsters might entail.
07:10
Sniffing Out Warnings From the Scent of Death
Researchers suggest that putrescine—a compound found in corpses—can trigger our defensive responses.
17:42
Discovering the Brain’s Ghoulish Glitches
Science writer Sam Kean discusses some of the brain’s most ghoulish glitches and what they can teach us about how healthy brains operate.
21:59
Spider Stories That’ll Stick With You
Cannibalism. Bondage. An offering of flesh. Spiders have weird (and wonderful) ways of enticing and entertaining their mates.
05:31
Diary of a Snake Bite Death
This week’s Macroscope video follows the detailed diary of herpetologist Karl P. Schmidt as he was dying from the venom of a snake bite.
‘Monster In A Barrel,’ And Other Haunting Ocean Drifters
Some predatory plankton appear innocent enough—until they go in for the kill.
Diary Of A Snakebite Death
Karl P. Schmidt, famed snake expert and herpetologist, made a detailed scientific account of the effect of venom from a snake bite in the human body—his body.
12:08
Sexually-Transmitted Ebola, Space Mining, and Cashless Countries
The public health implications of sexually transmitted Ebola and the move toward cashless societies.
17:24
Did Dark Matter Doom the Dinosaurs?
Physicist Lisa Randall explores the theory that a disc of dark matter could have been responsible for the catastrophic collision that extinguished the dinosaurs.
15:23
It All Started With a Hoverboard: How Back to the Future II Envisioned 2015
Academy Award-nominated visual effects art director John Bell talks about how he imagined the then-distant world of 2015 for “Back to the Future II.”