How James Webb Space Telescope data have already revealed surprises

Massimo Pascale wasn’t planning to study the galaxy cluster SMACS 0723. But as soon as he saw the cluster glittering in the first image from the James Webb Space Telescope,…

Native Grass Alternatives to Lawns

By Audrey Pongs There are few things more American than the concept of expansive lawns. We love our dutiful blades of grass, all lined up and trimmed, just waiting to…

50 years ago, the dinosaurs’ demise was still a mystery 

What did in the dinosaurs: Warm blood or soft eggs? — Science News, July 22, 1972 Dinosaurs might have been endothermic, or warm-blooded…. The combination of large size, endothermy and…

Mammal ancestors’ shrinking inner ears may reveal when warm-bloodedness arose

Hot or not? Peeking inside an animal’s ear — even a fossilized one — may tell you whether it was warm- or cold-blooded. Using a novel method that analyzes the…

A new technology uses human teardrops to spot disease

Human tears could carry a flood of useful information. With just a few drops, a new technique can spot eye disease and even glimpse signs of diabetes, scientists report July…

These huntsman spiders do something weird: live together as a big, happy family

How descendants of cannibals evolved abilities to share a home mostly without killing each other — never mind the rare oopsie snack — resonates after several pandemic years. Among the…

The top side of an elephant’s trunk stretches more than the bottom

On a sunny day at Zoo Atlanta in 2020, Kelly the African bush elephant reached for a snack and revealed something strange. High-speed cameras tracking her movements suggested that the…

Clouds in the Milky Way’s plasma bubbles came from the starry disk — and far beyond

Huge bubbles of plasma billowing out from the Milky Way’s center might contain scraps from all over the galaxy — and beyond. A new look at gas clouds in the…

Underground heat pollution could be tapped to mitigate climate change

The secret to efficiently heating some buildings might lurk beneath our feet, in the heat that humans have inadvertently stored underground.  Just as cities warm the surrounding air, giving rise…

Here are experts’ answers to questions about COVID-19 vaccines for little kids

Four weeks ago, the U.S. Centers for Disease Control and Prevention signed off on COVID-19 vaccines for young children. Days later, doctors’ offices and clinics began rolling out shots for…