Deploying sunlight-blocking aerosols to counteract only some global warming could avoid changes to precipitation
Remote techniques can detect signs of active testing—but they don’t tell us everything
Weapons that kill enemies on their own threaten civilians and soldiers alike
Engineered microorganisms churn out THC, CBD and rarer, less-understood cannabis cousins
Artificial intelligence experts, ethicists and diplomats debate autonomous weapons. Christopher Intagliata reports.
As automated delivery ramps up, cities must decide how to make the best use of public spaces
The rover Opportunity has called it quits after working for more than 14 years on Mars.
AI enhancement and a virtual time machine are included in the short list of pitches
Design principles derived from observing fruit flies may lead to better self-driving cars and improved Parkinson’s treatment
How does the laser technology that earned the 2018 Nobel Prize in Physics come into our everyday lives?
Will artificial intelligence be your next ER doctor?
The U.S. has been slow to embrace the technology, even though Japan and China are zooming ahead
Modeling the physics of bird jumping is helping engineers make more mobile machines
Can dam releases that mimic natural flows restore the Grand Canyon ecosystem?
Researchers built a small, flexible device that harvests wi-fi, bluetooth and cellular signals, and turns them into DC electricity. Christopher Intagliata reports.
An app could help those with face blindness but has raised concerns among privacy experts
What’s changed since my first Scientific American column
Doris Tsao mastered facial recognition in the brain. Now she’s looking to determine the neural code for everything we see
Will a general algorithm that masters chess, go and shogi succeed as well for games with less-defined rules?
Engineers are using sophisticated models to clean plastic debris from oceans, optimize airflow in smog-filled cities, and make vehicles lighter and more efficient.