All Stories
- Health & Medicine
Refurbished heart pacemakers work like new
“Old” pacemakers may still work for years, so doctors are refurbishing used devices and donating them to patients in low- and middle-income countries.
- Archaeology
Ancient Central Americans built a massive fish-trapping system
Earthen channels directed fish into ponds that formed seasonally, providing a dietary bounty for Maya civilizations starting around 4,000 years ago.
- Climate
Satellite space junk might wreak havoc on the stratosphere
Hundreds of defunct satellites plunge toward Earth every year. Scientists are studying how the chemical stew left in their wake impacts the atmosphere.
- Health & Medicine
Scientists identify a long-sought by-product of some drinking water treatments
Chlorine-based water treatments create many by-products, but one has been elusive. Its identification sets the stage for studying its health effects.
- Animals
For adult chimps, playing may be more important than previously thought
A multiyear study of dozens of wild, adult chimps suggests that play helps reduce tension and boost cooperation among individuals.
- Astronomy
This is the first close-up image of a star beyond our galaxy
The first-ever close-up of an extragalactic star looks different than expected and might give a view of what stars look like at the end of their lives.
- Planetary Science
Mars’ potato-shaped moons could be the remains of a shredded asteroid
Phobos and Deimos could have formed from asteroid debris, a new study suggests. An upcoming sample return mission will help test the idea.
- Artificial Intelligence
Here’s why turning to AI to train future AIs may be a bad idea
If future AI models are trained on AI-generated content, they could end up producing more bias and nonsense, researchers caution.
- Climate
Climate change has amped up hurricane wind speeds by 29 kph on average
Every single Atlantic hurricane in 2024 had wind speeds supercharged by warming seas. One even jumped two categories of intensity.
- Cosmology
Einstein’s gravity endures despite a dark energy puzzle
The DESI project previously reported that dark energy — long thought to be constant — changes over time. A new analysis reaffirms that claim.
- Health & Medicine
Vaccines, fluoride, raw milk: How RFK Jr.’s views may shape public health
If confirmed as head of the Department of Health and Human Services, Kennedy could influence U.S. policy on vaccines, drugs and food safety.
- Life
Nature’s first fiber optics could light the way to internet innovation
Mineral crystals in heart cockles’ shells protect symbiotic algae from ultraviolet rays and could lead to innovations in internet infrastructure.
