Science News

Fluoride is added to tap water in many countries around the world. But why?

Photos from the James Webb Space Telescope have revealed more than 40 stars within the gravitationally lensed "Dragon Arc" galaxy, 6.5 billion light-years from Earth. It is the largest group of individually imaged stars ever seen at such a distance.

Shark sex is a bitey business, with males grasping females with their teeth during the act. The resulting wounds are helping scientists to figure out when and where sharks are doing the deed.

A huge magnitude 7.1 earthquake has hit the holy city of Shigatse, or Xigazê, in the autonomous region of Tibet in China.

Earth from space This 2014 satellite photo shows Pakistan's Khor Kalmat tidal lagoon brimming with water at the heart of an arid desert. This fluctuating body of water, which looks like "ink bleeding onto parchment," helps support life in this harsh environment.

New Project Digits mini PC offers a petaFLOP of power for local AI processing and data science.

Nvidia's Cosmos platform lets researchers simulate multiple different realities and simulate real-world physics to generate footage that can train future robots.

The patient in Louisiana who contracted a severe case of bird flu has died, officials announced.

Only certain cleaners kill norovirus, a leading cause of vomiting, diarrhea and foodborne illness. Why is that?

A hotspot that now lies in the middle of the Atlantic Ocean was once under the Great Lakes, and may explain why they formed where they did.

The conditions needed to create thunderstorms are very rare, and can be dangerous, meteorologists warn.

Zavaritskii volcano in the Kuril Islands was responsible for the mysterious 1831 volcanic eruption that cooled the climate and turned the sun different colors, a new study finds.

Record-breaking Wolf 907F, the alpha of the Junction Butte pack, died after a confrontation with a rival pack at Yellowstone River on Christmas Day.

More than 100 volcanoes lurk beneath the surface in Antarctica. Ice sheet melt could set them off.

This marble statuette is emblematic of Ptolemaic-era art: a mishmash of styles with a decidedly Egyptian twist.

An astronomer describes how the moon's surface temperature changes.

Twins are pretty rare, accounting for just 3% of births in the U.S. these days. But new research shows that for primates 60 million years ago, giving birth to twins was the norm.

In "time expansion experiences," time typically appears to expand by many orders of magnitude.

Research shows that A.D. 536 was not the worst year to be alive.

Honda's new facility could drive breakthroughs in solid-state batteries for electric cars, ultimately leading to batteries with more than double the range of existing EVs.