Ten years after scientists finished mapping our DNA, they have many unanswered questions.
A new wave of plug-in hybrids and all-electric vehicles will have to overcome a familiar nemesis: battery costs.
Google and the geeks from Silicon Valley aim to revolutionize the 70-year-old TV industry. Conquering the Internet was easy in comparison.
The last decade expanded what we could do online, but the Web's basic programming couldn't keep up. That threatened to fracture the world's greatest innovation engine—until a small group of Web rivals joined forces to save it.
Ed Boyden is learning how to alter behavior by using light to turn neurons on and off.
An expected nuclear renaissance has failed to materialize as plans for new plants are scrapped or delayed. What happened?
Physicians can now use DNA sequencing to uncover the causes of rare genetic disorders.
Christopher "moot" Poole created 4chan, an online community where people are free to be wrong. Now big investors want a piece of his ideas.
Suntech CEO Zhengrong Shi made China a powerhouse in photovoltaic technology--and became a billionaire in the process. His next ambition: to make solar power as cheap as conventional electricity.
Cyber attacks are increasing exponentially. Here's what recent episodes can teach us about thwarting cyber crime, espionage, and warfare.