How smart energy policy can ease conflicts.
To rescue its struggling business, Hewlett-Packard is making a long-shot bid to change the fundamentals of how computers work.
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.
A Stanford professor claims to have invented a Bitcoin-like system that can handle payments faster and with more security.
Kentaro Toyama went to India with noble intentions for using technology to improve people’s lives. Now he’s wrestling with why the impact was so small.
We have the technology to dramatically increase the independence of people with spinal-cord injuries. The problem is bringing it to market and keeping it there.
A new study suggests that battery-powered vehicles are close to being cost-effective for most people.