A new way to identify battery materials suitable for mass production could revolutionize energy storage.
Under the right circumstances, solar cells from Semprius could produce power more cheaply than fossil fuels.
Zhong Lin Wang thinks piezoelectric nanowires could power implantable medical devices and serve as tiny sensors.
To avoid future wireless traffic jams, Heather "Haitao" Zheng is finding ways to exploit unused radio spectrum.
The well-known investor behind the likes of Twitter and Foursquare says venture capital funds have gotten too big.
Maes, whose research group studies human-computer interaction, says mobile devices may soon eavesdrop on their owners to anticipate their needs.
The PayPal cofounder wants to see more startups trying for bigger things.
The social-networking company is collecting and analyzing consumer data on an unprecedented scale.
Simple and direct analysis of DNA will make genetic testing routine in more situations.
A mathematical upgrade promises a speedier digital world.