The New Money
Square, founded by the creator of Twitter, lets people accept credit cards with their smart phones. That innovation could transform transactions in surprising ways.
Story Archive
The Slow-Motion Internet
Google's growth plans depend in part on whether it can make the entire Web faster.
The Genome's Dark Matter
Evidence is growing that your DNA sequence does not determine your entire genetic fate. Joseph Nadeau is trying to find out what accounts for the rest.
Cancer's Genome
For the first time, scientists can track the precise genetic changes behind an individual case of cancer. Such information provides a picture of how tumor cells originate and evolve. And it could change the way we treat the disease.
The Human Genome, a Decade Later
Ten years after scientists finished mapping our DNA, they have many unanswered questions.
Will Electric Vehicles Finally Succeed?
A new wave of plug-in hybrids and all-electric vehicles will have to overcome a familiar nemesis: battery costs.
Searching for the Future of Television
Google and the geeks from Silicon Valley aim to revolutionize the 70-year-old TV industry. Conquering the Internet was easy in comparison.
The Web Is Reborn
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.
Brain Control
Ed Boyden is learning how to alter behavior by using light to turn neurons on and off.
Giant Holes in the Ground
An expected nuclear renaissance has failed to materialize as plans for new plants are scrapped or delayed. What happened?
