Leeches are making a medical comeback – here’s why we should celebrate it

If you ever need reconstructive surgery you may well end up seeing medicinal leeches differently. Yulya Talerenok/Shutterstock Mike Jeffries, Northumbria University, Newcastle As we tidy away the Dracula capes and glow-in-the-dark plastic fangs for another winter, one notorious blood sucker has had a particularly good year. For the first time the medicinal leech Hirudo medicinalis […]



Carl Sagan’s scientific legacy extends far beyond ‘Cosmos’

Carl Sagan at his Cornell University laboratory in Ithaca, N.Y., in 1974. Santi Visalli, Inc./Archive Photos via Getty Images Jean-Luc Margot, University of California, Los Angeles On Nov. 9, 2024, the world will mark Carl Sagan’s 90th birthday – but sadly without Sagan, who died in 1996 at the age of 62. Most people remember […]



How can Jupiter have no surface? A dive into a planet so big, it could swallow 1,000 Earths

A photo of Jupiter taken by NASA’s Juno spacecraft in September 2023. NASA/JPL-Caltech/SwRI/MSSS, image processing by Tanya Oleksuik Benjamin Roulston, Clarkson University Curious Kids is a series for children of all ages. If you have a question you’d like an expert to answer, send it to [email protected]. Why does Jupiter look like it has a […]

Every Disorder That Gives You Superpowers Explained in 6 Minutes

Real-Life Superpowers

Ever wonder about the fascinating world of real-life “superpowers”? Check out this video where amazing conditions like Hyperthymestic Syndrome (giving people photographic memories), Tetrachromacy (allowing some to see a world of extra colors), and Myostatin-Related Muscle Hypertrophy (creating impressive natural strength) are explored. From Congenital Insensitivity to Pain to the rare “Vampire Syndrome,” each unique […]

Black Plastic Utensils: The Hidden Health Risks in Your Kitchen

Black Plastic Ustelsils Can Be Hazardous

Ever heard that cooking with black plastic utensils might not be the best choice for your health? If you’re even a little worried about things like microplastics in your food, you might want to rethink using that black plastic spatula or spoon in the kitchen. Here’s why: Some black plastics aren’t just regular plastic—they might […]

Parasitoid Wasp Parenting: The Ultimate Cuddle Gone Wrong!

Ze Frank is back with a new episode of True Facts, and this one features parasitoid wasps. These wasps have parenting techniques that redefine creepy: from laying eggs inside living hosts to using paralyzing venom and virus manipulation. Ze Frank’s knack for comedic science storytelling sheds a bizarre light on wasps who avoid hands-on parenting […]

Making a Snickers bar is a complex science − a candy engineer explains how to build the airy nougat and chewy caramel of this Halloween favorite

From their caramel centers to chocolatey coatings, several widely used candy-making processes go into the production of a single Snickers bar. NurPhoto / Contributor via Getty Images Richard Hartel, University of Wisconsin-Madison It’s Halloween. You’ve just finished trick-or-treating and it’s time to assess the haul. You likely have a favorite, whether it’s chocolate bars, peanut […]

Sriracha Science: The Fiery Chemistry Behind Your Tongue’s Favorite Torture

Sriracha Sauce and Deadpool

Ever wondered what makes Sriracha the spicy superhero of sauces? This saucy little devil is equal parts science experiment and flavor explosion, turning humble chilies into a condiment that somehow manages to go with everything. Let’s dive into the chemistry that transforms this red delight into a must-have condiment, otherwise known as the “Get-on-Everything Sauce.” […]

Why night owls struggle more when the clocks go back

When the clocks go back, things are even worse for night people. Roman Samborskyi/Shutterstock Darren Rhodes, Keele University When the clocks go back and we gain an extra hour, it might seem like a welcome bonus. But not for everyone. Night owls, those who naturally prefer staying up late and waking up late, often find […]