Popular Science. Demystifying the worlds of science and technology since 1872.
Why does chocolate turn white? It’s not mold.
No need to worry—some molecules just moved around.
Chicago’s rat hole wasn’t made by a rat
Plus a retirement home for penguins and other weird things we learned this week.
Rachel Feltman
At Popular Science, we report and write dozens of stories every week. And while a lot of the fun facts we stumble across make it into our articles, there are lots of other weird facts that we just keep around the office. So we figured, why not share those with you? Welcome to The Weirdest Thing I Learned This Week.
Latest Articles
The 10 weirdest and wildest musical instruments of 2026
The 28th annual Guthman Musical Instrument Competition includes a Fiddle-Henge, a modified bicycle wheel, and a ‘Demon Box.’
13 gorgeous black-and-white images of the animal kingdom
The 2025 Nature Photography Contest features a playful fox and a muscly horse.
Scottish distillery wants to bottle whisky in aluminum, not glass
Stirling Distillery has two years to figure it out.
Dinosaur bones found underneath parking lot in Dinosaur, Colorado
They’re the first fossils found near Dinosaur National Monument in over 100 years.
This deadly dog ‘spaghetti’ has ancient origins
Heartworm is one of the most widespread dog parasites.
A robot bat sheds new light on how they hunt in darkness
‘I’m always Team Bat. They always trick me, they always outsmart me.’
British soldier’s long-lost memoir rediscovered in Cleveland
War of 1812 veteran Shadrack Byfield’s second book describes a grittier life story—and a hook for a hand.
Veronika the Cow shocks scientists by using a tool
The 13-year-old bovine is crushing stereotypes of bovine intelligence.
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Popular Science has been demystifying the worlds of science and technology since 1872. We explain the inner workings of the phone in your pocket, explore world-changing innovations, and examine everything from the marvels of deep space to the secret lives of staples like bread. We deliver an engaging, approachable, and inclusive look at emerging technologies and scientific advances.
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