Tesla launches a stationary battery aimed at companies with variable electricity rates and homes with solar panels.
The secretary for homeland security and the president’s cybersecurity advisor echo the NSA and FBI’s concerns about encryption.
The counterintuitive distribution of digits in certain data sets turns out to be a powerful tool for detecting strange behavior on social networks.
How smart energy policy can ease conflicts.
The prospects for carbon-neutral vehicles could get a boost from a new way to make hydrogen from biomass.
And there's a 50:50 chance of a Three Mile Island-scale disaster in the next 10 years, according to the largest statistical analysis of nuclear accidents ever undertaken.
In a first-of-its-kind endeavor, electricity-starved Rwanda and the Democratic Republic of Congo are trying to get power from a lake—and avert catastrophe.
Antisocial behavior online can make people's lives miserable. So an algorithm that can spot trolls more quickly should be a boon, say the computer scientists who developed it.
Young social networks grow in an entirely different way to mature networks, say computer scientists who have analyzed the way Facebook grew in the heady days after it launched in 2004.