To prevent breaches companies must strictly control which employees can access sensitive data.
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.
A report from the National Academy of Sciences says inaction on greenhouse-gas emissions makes resorting to geoengineering more likely.
Transatomic Power has begun tests on a very cheap and compact molten-salt reactor.
A promising advance that came to nothing suggests what it will take to make cheap batteries for electric cars.
Artificial-intelligence software can make phones better at tracking your workouts and emotions.
The former energy secretary, who has begun chasing emerging technologies again, looks back on his successes and failures in government.
The best of the rest from the Physics arXiv preprint server.
Advanced manufacturing technologies are leading to smaller jet engines.