Genetic analyses have solved the riddle of where a marsupial mole fits on the tree of life: It’s a cousin to bilbies, bandicoots and Tasmanian devils.

When Trump’s move to leave WHO takes effect in a year, it may gut funding for global public health and limit U.S. access to crucial data, experts warn.

High radiation during a time of frenzied star formation in the Milky Way left one stellar population with few chances to form planets, a study reports.

A Jurassic pterosaur fossil, known to paleontologists for over 160 years, isn’t a new species. It is an odd specimen of Rhamphorhynchus muensteri.

Thanks to climate change, thawing permafrost in the Canadian Arctic has revealed the buried remnant of a glacier that’s 770,000 years old.

The U.S. Food and Drug Administration issued a rule to drastically reduce the amount of nicotine in cigarettes and other combusted tobacco products.

The first study of copycat urination in an animal documents how one chimpanzee peeing prompts others to follow suit. Now researchers are exploring why.

Since early 2024, the U.S. has logged 66 human cases of H5N1. Scientists are keeping a watchful eye on the virus’s spread as we enter a new year.

The gyrations of hoop-slinging robots reveal that hourglass-shaped objects are best at keeping a hoop in the air.

After decades of study, scientists sound genuinely optimistic about the possibility of detecting primordial black holes, which might explain dark matter.

One of the most extreme megadroughts has helped fuel wildfires in Los Angeles County and elsewhere in California.

As Trump takes office, issues of arms control, the U.S. arsenal and weapons testing will be on the radar for many nuclear weapons researchers.