Fluoride in U.S. drinking water does not reduce IQ, a new study finds
Claims that fluoride in drinking water causes cognitive delays in kids are driving U.S. policy. A new study finds no evidence to back them.
Category: Science
Stone Age tombs in Scotland reveal ‘webs of descent’ among male relatives
An analysis of DNA from Stone Age skeletons buried in Scotland reveals how people organized the burial of their dead.
‘Oslo patient’ likely cured of HIV after getting stem cell transplant from his brother, who is genetically resistant to the virus
A man known as the “Oslo patient” joins a short list of people in long-term remission from HIV following bone marrow transplants.
Antiseptic-tolerant germs spread through the air in hospitals, early study hints
Trace amounts of antiseptic chemicals in hospital rooms may be driving tolerance and resistance in bacteria, a study finds.
Artemis II Astronauts Aboard USS John P. Murtha
NASA astronauts Reid Wiseman, commander; left, Christina Koch, mission specialist; CSA (Canadian Space Agency) astronaut Jeremy Hansen, mission specialist; and NASA astronaut Victor Glover, Artemis
The AI Revolution in Math Has Arrived
The tipping point came in the summer of 2025. That July, several artificial intelligence models solved five out of six problems at the International Mathematical
Talking dogs and chatty cats could one day ‘speak’ in our language
Advances in decoding animal sounds might someday make animal translators a possibility.
Sperm quality is at its peak in the summer, study finds
Seasonal shifts in behavior — not temperature — may subtly influence sperm motility. Whether this variation in sperm quality influences fertility remains to be seen.
Scientists are trying to build a vaccine that works against almost any respiratory pathogen — here’s how close they are.
A nasal spray in mice boosted lung immunity against viruses, bacteria and allergens — but a truly universal vaccine is still years away.
Idol of Pomos: A 5,000-year-old fertility figurine from Cyprus that wears a miniature version of herself on a necklace
The cross-shaped figurine has become a potent symbol of Cyprus’ contribution to prehistory.
What a chimpanzee ‘civil war’ can teach us about how societies fall apart
A long-term study of the world’s largest known community of chimpanzees has documented a rare event: what the researchers describe as the primate equivalent of
For gray whales, San Francisco Bay is becoming a deadly pit stop
Climate change could be forcing gray whales to seek food in San Francisco Bay, where vessel strikes may be driving rising deaths.
Good Morning, Moon
Early morning sunlight illuminates the western wall of this unnamed crater, leaving deep shadows on the ground and in the interior. The image was taken
The real space science behind ‘Project Hail Mary’
The science fiction blockbuster wowed audiences with its depiction of space travel and more. Here’s what NASA staff and other scientists say about the basis