A January executive order by President Donald Trump designates people as female if they make the “large” reproductive cell (the egg) and male if they make the ...

Scientists suggest the missile defense plan will face big hurdles, especially given its projected timeline and cost.

Editor in Chief Nancy Shute discusses the centennial of quantum mechanics’ framework, Hubble’s 35th anniversary and the legacy of Kanzi the bonobo.

A new fossil and DNA analysis traces how dozens of sloth species responded to climate shifts and humans. Just two small tree-dwelling sloths remain today.

Pruney fingertips aren't swollen sponges — the wrinkles actually come from blood vessels constricting and pulling skin inward.

The AI tool used machine learning to outperform current weather simulations, offering faster, cheaper, more accurate forecasts.

With greater control over the quantum realm, physicists are poised to make major leaps in quantum computing, quantum gravity and more.

In a first-of-its-kind test, scientists used a levitated magnet to search for dark matter, the unidentified substance believed to be present throughout the cosmos. If dark matter is made up of ...

The person who received the bladder is doing well, and the successful transplant could offer hope to thousands of people with bladder dysfunction.

You lay a plastic sheet on the mud. Then you lay your body upon the sheet. Without any direct contact between mud and body, you spend several minutes enjoying the soft and saunalike heat, sweating all ...

In 2018, over 350,000 excess heart disease deaths were linked to phthalates. More research is needed to fully understand the chemicals' effects.

Not all plants can be stored in a seed bank. Cryopreservation offers an alternative, but critics question whether this form of conservation will work.