The ocean circulation system may not be as bad as previously thought. A vital oceanic artery known as the Florida Current, a signal of the ocean’s ability to regulate Earth’s climate, has apparently been weakening for decades. But this latest decline may not be as severe as suspected. The current has actually remained stable over […]

TV stars and terrorists may seem to have little in common. But after watching YouTube videos by members of a violent terrorist organization, Yotam Ophir realized that the two groups used similar tactics to connect with distant audiences. The terrorists dressed casually, looked into the camera when they spoke, and recounted their pasts in a […]

It was like a Ph.D. student Dionna Williams realized fundamental flaws in the way medical science treats people who have HIV and also use illegal drugs or misuse prescription drugs. People in this group often have worse outcomes than people with HIV who do not use these drugs. Drug use and addiction have been linked […]

Extreme Climate Survey Scientific news is collecting questions from readers about how to navigate our planet’s changing climate. What do you want to know about extreme heat and how it can lead to extreme weather events? “I remember standing there just looking at it,” says Zeng, a climate scientist at the University of Maryland. He […]

Extreme Climate Survey Scientific news is collecting questions from readers about how to navigate our planet’s changing climate. What do you want to know about extreme heat and how it can lead to extreme weather events? In just 60 hours, the NHC predicted that PTC9 would intensify at a record pace, going from winds of […]

An asteroid heading toward Earth can be deflected without ever touching a spacecraft. The trick is to use X-rays to deflect the space rock, researchers report Sept. 23 Nature Physics. In laboratory experiments, scientists heated the surfaces of free-falling artificial asteroids with X-ray radiation, producing steam plumes that blew the objects away. Later computer simulations […]