All Stories
- Animals
What killed the dinosaurs?
New evidence is emerging that a devastating combo of events — an asteroid impact and supervolcanoes — may be behind the dinosaurs’ demise.
- Earth
Drilling into a dinosaur killer
An asteroid that hit the Earth 66 million years ago killed off the dinosaurs. Now scientists are drilling into the giant crater left behind.
- Chemistry
How to spin synthetic spider silk
A new method for spinning artificial spider silk combines parts of proteins from two species and mimics what happens in a spider’s silk-forming gland.
- Genetics
Explainer: How PCR works
The polymerase chain reaction, or PCR, is like a DNA-copying machine. It duplicates genetic material over and over. Here’s how.
- Health & Medicine
Scientists Say: Frostbite
As we get cold, the blood vessels near our skin constrict to keep body heat in. But in the process, they leave some tissues in danger of frostbite.
- Climate
Climate change could stall Atlantic ocean current
Rising carbon dioxide concentrations in Earth’s atmosphere could disrupt the Atlantic Ocean current after all, a new analysis finds.
- Computing
The Internet of Things wants to link all facets of our world
The Internet of Things means everyday objects are becoming computers. Can people harness this technology to make the world better?
- Chemistry
Here’s how hot water might freeze faster than cold
There’s a new explanation for how hot water freezes faster than cold water. But not everyone agrees it’s right, or that the effect can happen at all.
- Earth
Meet our trashy ‘technosphere’
People are creating a layer of debris and disturbance called the technosphere. A new study estimates just how truly massive it is.
- Health & Medicine
Violence spreads like a virus
New research shows that the friends of violent teens are much more likely to become violent themselves.
- Health & Medicine
Scientists Say: Hypothermia
Our bodies need to stay warm to function correctly. If our temperature drops too much, we can suffer from hypothermia.
- Computing
How to build computer chips only 3 atoms thick
Scientists have engineered an ultrathin material only three atoms thick. The material could be used to make extremely slender computer chips.
