Editor in Chief Nancy Shute reflects on the renewed specter of nuclear conflict to record-breaking heat driven by human-caused climate change.

A century ago, physicists laid the foundation of quantum mechanics. Today, with greater control of quantum systems, scientists are making major leaps in ...

Experts worry the warning on vaginal estrogen menopause treatments is doing more harm than good and is not supported by science.

Some people’s biology may set them up to birth babies of a certain sex, explaining why a family with multiple children may have all girls or all boys.

In Rehab, journalist Shoshana Walter investigates the systemic pitfalls of drug treatment programs, which prevent people’s recovery from addiction.

Earth has experienced both hot and cold periods over time, though warm times have been more common. That’s true of the last 485 million years, as seen in this timeline reported in 2024. Our genus, ...

When navigating home, Magellanic penguins alternate between heading straight back in calm waters and swimming with the flow in strong ocean currents.

A young sunlike star called HOPS 315 seems to host a swirling disk of gas giving rise to minerals that kick-start the planet formation process.

The cells helps the snakes absorb the bones of their prey — and might show up in other animals that chomp their meals whole.

Defense lawyers have called shaken baby syndrome, or abusive head trauma, junk science. But doctors say shaking a baby is dangerous.

You and a friend have arranged to meet at a popular downtown mall between 3 p.m. and 4 p.m. one afternoon. However, you neglected to specify a time within that one-hour window. Therefore, each of you ...

An oceanographer explains how climate change, warming oceans and a souped-up atmosphere are creating conditions for deadly floods.