Science

Nanotechnology could radically change medicine, electronics and even help clean up the environment. But those tiny particles could also be a threat to human health. Amy Scott reports on a new nonprofit-corporate effort.

If you just can't put down that PSP... you may need psychiatric help says the AMA. It's considering adding video game addiction to its diagnostic manual. But don't expect gamers to take the new label too seriously, Alisa Roth reports.

It's the Beta vs. VHS battle of our time... two rival formats for high-definition DVDs are vying for market share. A move by the nation's biggest DVD rental retailer could tip the balance. Dan Grech reports.

Venture capitalists have been shying away from early-stage drug funding. So some nonprofit foundations are filling the gap in a practice known as venture philanthropy. Janet Babin reports.

It seems too good to be true — a device that can power lights, laptops, phones and just about anything else, through the air and without plugging in. But there are some drawbacks — Jill Barshay reports.

Cell phones that rely on Qualcomm chips to extend battery life were banned from U.S. import yesterday, but don't expect to see shipments piling up at the border. It's more likely to come down to deal-making, reports Janet Babin.

Backers of stem-cell research say federal funding's needed, because wary investors won't step up to the plate. Investors worry that promising new therapies won't be profitable for years. Steve Tripoli reports.

Sprint launches a new service today that uses global positioning technology to help shoppers find products in stores. And this is just the beginning, Ashley Milne-Tyte reports.

It takes just 2.5 liters of water to make and bottle one liter of Coke, but 250 liters to grow the sugar cane in the mix. The bottling giant announces a new push to save water — but is it enough? Ashley Milne-Tyte reports.

As President Bush prepares to tout U.S. leadership on reducing greenhouse gas emissions at tomorrow's G8 summit in Germany, there's news the White House is cutting what scientists call an essential tool for studying global warming. Sam Eaton has details.