Automotive

New NHTSA chief: Agency to scrutinize auto-driver technology

The new head of the government's road safety agency says it will intensify efforts to understand the risks posed by automated vehicle technology so it can decide what regulations may be necessary to protect drivers, passengers ...

Engineering

Solar cell keeps working long after sun sets

About 750 million people in the world do not have access to electricity at night. Solar cells provide power during the day, but saving energy for later use requires substantial battery storage.