FireChat can link Android and Apple phones into a long-range communications network even when the cell network is down.
Researchers are trying to program self-driving cars to make split-second decisions that raise real ethical questions.
To get its drone delivery service off the ground, Amazon must convince regulators to adopt its ideas for drone traffic control.
Researchers built a mobile health app that tracks your activity and eating habits so it can nudge you with goals that fit your routine.
Startup Density says its Internet-connected sensors can make it simple to count people all over your city.
Technology and geopolitics are driving ambitious deep-sea projects to provide clean energy to parts of the world that desperately need it.
Researchers have created self-contained cellular biolasers.
China generates only about 2 percent of its total electricity using nuclear power, but it is adding new reactors much faster than any other country.
The University of Michigan opens its mock city for testing driverless vehicles.
The first iPhone apps that block online ads could speed up your Web browsing, cut your data bills, and extend your battery life.