Technology

For the first time, researchers have used sound waves to 3-D print an object from a distance—even with a wall in the way

Thanks to researchers, new AI tech is delving into feline feelings to see when cats could need medical help. 

Machine-learning software gets behind the inscrutable feline face and may improve pet care

To understand how AI is contributing to climate change, look at the way it’s being used

AI chatbots can convince other chatbots to instruct users how to build bombs and cook meth

The company announces its latest huge chip—but will now focus on developing smaller chips with a fresh approach to “error correction”

The potential of geothermal energy as a carbon-free power source is well known. Now companies such as Google are helping to unlock it

As humans encroach on polar bear habitats, new tools such as drone-mounted radar can prevent us from disrupting the hidden dens where bears give birth

Light can be reflected not only in space but also in time—and researchers exploring such “time reflections” are finding a wealth of delightfully odd and useful effects

Robots that can fit multiple items into a limited space could help pack a suitcase or a rocket to Mars

Amid restrictions on optical satellite images, researchers have developed a radar technique to gauge building damage in Gaza

Scientists can finally predict a chemical’s odor without having a human sniff it