A recent Trump executive order defines sex based on gamete size. But the order oversimplifies genetics, hormones and reproductive biology.

Solve our latest interactive crossword. We'll publish science-themed crosswords and math puzzles on alternating months.

Scientists and journalists share a core belief in questioning, observing and verifying to reach the truth. Science News reports on crucial research and discovery across science disciplines. We need ...

The work could be a step toward understanding the effects behind the phenomenon of static electricity, in which electric charge accumulates on materials after they are rubbed or touched together.

Scientists are losing funding and even their jobs under the new Trump administration. Researchers at the AAAS meeting shared fears and coping strategies.

In the second episode of The Deep End, listeners hear what it’s like to live with severe depression and the backstory of an experimental treatment.

Two bands of radiation called the Van Allen belts encircle Earth. After a May 2024 solar superstorm, two more showed up between those belts.

High-pressure experiments generated the first direct observation of plastic ice, which has qualities of both crystalline ice and liquid water.

President Trump has already begun to introduce changes that weaken the Endangered Species Act, a cornerstone of U.S. conservation law.

Fossilized teeth from two ancient megafauna suggest they roamed Brazil 3,500 years ago. The find “opens the door to rewrite South American history.” ...

Norovirus is highly infectious and causing a lot of illness this winter. Several vaccine candidates are making their way through clinical trials.

Science dioramas of yesteryear can highlight the biases of the time. Exhibit experts are reimagining, annotating — and sometimes mothballing — the scenes.