Cheap, simple water filters made of plant xylem could dramatically reduce the incidence of water-borne diseases in places without access to clean drinking water, say engineers.
Automation is reducing the need for people in many jobs. Are we facing a future of stagnant income and worsening inequality?
By analyzing carbon dioxide in exhalations, an algorithm could help paramedics determine how to treat patients.
Social scientists have never understood why some countries are more corrupt than others. But the first study that links corruption with wealth could help change that.
Carmakers must also push out more of the cleaner vehicles to meet average fleet emissions standards.
A unique class of RNA drugs could bring new treatments to cancer and other diseases.
There are now many general-purpose consumer LED bulbs that give off good light. With so many, how can you tell the difference?
The former energy secretary, who has begun chasing emerging technologies again, looks back on his successes and failures in government.