March was a scorching 9.5 degrees Celsius hotter than it was last year, capping the hottest 12-month stretch for the U.S.

SpaceX is now targeting the evening of May 21 to launch the latest and largest version of its Starship megarocket for the ...

Scientific American spoke to one of the people currently being monitored at the National Quarantine Unit in Nebraska for ...

If you switch a lamp on and off an infinite number of times, will the light end up on or off? Somehow math says both ...

The sudden resolution of a well-known conjecture highlights the growing adoption of AI as an assistant in high-level ...

The universe teems with galaxies, but in our neighborhood of the universe, some are rarer than others. Most of the local ...

Clinical trials for treatments against Ebola Bundibugyo virus are ‘in a strong position’ to be launched quickly in the ...

Nuclear power plants are safer than many suspect. But putting reactors in space is a concept with a checkered history. One ...

Mosaic depictions of a weapon-wielding female gladiator are the first physical evidence showing women in ancient Rome could ...

Drugs such as Wegovy and Ozempic can lead to profound weight loss, but fat isn’t the only thing that comes off. About 25 to 40 percent of the pounds shed through these treatments is lean body mass, ...

Qubits can also experience entanglement—a special quantum connection that enables operations on one qubit to affect another ...

Letters to the editors for the February 2026 issue of Scientific American ...