The maker of Claude wants AI labs, including itself, to prepare for a coordinated slowdown if models begin building their own successors

NASA ordered its astronauts to take refuge inside a docked SpaceX Crew Dragon spacecraft and to prepare for potential evacuation of the International Space Station. But the crew returned to normal operations shortly afterward

The FDA’s ongoing review of mifepristone could skip over established science, health experts warn

Planets might exist in the least likely place you’d imagine—around the outskirts of supermassive black holes

AI analysis of mammograms could provide a “bonus finding” for heart disease

A physician involved in the long push to change the name PCOS to PMOS takes us behind the scenes of this subtle yet consequential change

Coal is the most significant fossil fuel contributor to climate change

Remote and hybrid work can have benefits, but a study involving more than 588,000 people suggest they may take a serious mental toll

Bumblebees appear to be capable of coming up with creative solutions to new problems to get a sugary reward—and their strategies include cheating

A new investigation alleges that official organizations in Tanzania have imperiled the country's artifacts and remains at four critical human heritage sites they were supposed to protect

This marks the first case of the New World screwworm in U.S. livestock since the parasite was eliminated in the country in the 1960s

A breeze is emanating from Sagittarius A* at the heart of our galaxy

A blip of light in the outer reaches of the Milky Way might be a bizarre black hole born at the beginning of time itself—and the long-sought solution to the mystery of dark matter. Astronomers are calling it “Phoebe”

Culture is humanity’s secret for world domination. This calculation shows just how powerful it is

Even though astronomers didn’t detect alien tech signals from a rare interstellar visitor, the results are worthwhile, they say

The long-anticipated “Schedule F” order strips job protections meant to safeguard federal employees from political interference

This prototype could help the world prepare for AI malware threats, according to the researchers who made it

Unprecedented results against a stubbornly hard-to-treat cancer are boosting optimism that other challenging tumors will be next

MAVEN was the first successful mission designed to study the atmosphere of Mars. It also became a vital node of NASA’s communications network at the Red Planet

From slow elevators to perfectly split pizza, math quietly explains the quirks of everyday life