The World Bank's former top economist took heat when he called for huge investments to head off climate change. Now he says he underestimated how much is needed.
It's the dark side of innovation: how crooks peddling fake antivirus software have gamed the Web in a billion-dollar rip-off.
Putting a computer on Jeopardy! warps the public understanding of what artificial intelligence is and how science is done.
It's time to consider price when evaluating new drugs.
Applications that overlay information on smart-phone screen views will change the way we interact with the world around us.
An implanted sensor significantly reduces hospitalization rates for heart-failure patients.
Researchers have found a way to watch for spies in the cloud.
First speedy transistors made from an ultrathin material.
Questions about the merits of the space shuttle are older than the program itself.
Today's electric cars and wind turbines rely on a few elements that are mined almost entirely in China. Demand for these materials may soon exceed supply. Will this be China's next great economic advantage?