Astronomy

There are a couple potential explanations for distinctive markings found on a Martian rock, but new evidence suggests they are most likely to be related to microbial activity

There are a couple potential explanations for distinctive markings found on a Martian rock, but new evidence suggests they are most likely to be related to microbial activity

The Starlab commercial space station project is moving toward the production phase, having passed a key development milestone with NASA.

Mysterious gamma rays; snake-eating snake

Four small, newly discovered worlds are less than six light-years away from Earth, and their discovery reinforces a cautionary tale from planet hunting’s prehistory

Several medications now calm painful inflammation in the intestines. Diets free of ultraprocessed foods also help

In the April issue of SciAm, follow a man’s journey to a diagnosis, learn about exciting new schizophrenia treatments, and more

Letters to the editors for the December 2024 issue of Scientific American

California is experiencing wider swings between wet and dry spells

Writers, artists, photographers and researchers share the stories behind the stories

Science in meter and verse

Artificial Intelligence uses too much energy. Developers need to find better ways to power it or risk adding to the climate crisis

Despite a brief panic, asteroid 2024 YR4 isn't likely to hit us anytime soon, but we can still study the asteroid up close to help us understand these space rocks.

NASA’s Perseverance rover recorded unusual sounds as a Martian dust devil passed directly over the robotic vehicle in 2021, and we now know they came from electrical activity in the storm

NASA’s Perseverance rover recorded unusual sounds as a Martian dust devil passed directly over the robotic vehicle in 2021, and we now know they came from electrical activity in the storm

Analyzing the metaphors we use to talk about ChatGPT can reveal how we’re thinking about the new tech

A personal quest and progress in brain science finally put a name on baffling behaviors

Play this crossword inspired by the April 2025 issue of Scientific American

Finish the cycle of numbers in this math puzzle

As a complex picture of schizophrenia emerges, so do new ways to treat the disorder