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Apple's Mac turns 25

Hard to believe it's been 25 years since Apple's slick TV spot, which aired during the third quarter of an otherwise forgettable Super Bowl between the Los Angeles Raiders and the Washington Redskins, ushered in the era of the Macintosh...

January 23, 2009 — Larry Greenemeier

FDA approves first human embryonic stem cell safety trial

Federal regulators have green-lighted the first trial of an embryonic stem-cell treatment in humans. The U.S. Food and Drug Administration (FDA) gave the go-ahead for Geron Corporation to start a phase I safety trial of its therapy GRNOPC1 for spinal cord injuries, the Menlo Park, Calif.–based company announced today...

January 23, 2009 — Jordan Lite

Computer worm threatens security as Microsoft announces mass layoffs

As if Microsoft's announcement yesterday that it's laying off 5,000 employees (the first such sackings in the company's 34-year history) wasn't bad enough, now some security analysts are predicting the worst is yet to come as the highly infectious Conficker worm continues to thrive after already striking as many as 10 million Windows PCs worldwide...

January 23, 2009 — Larry Greenemeier

Obama names Besser acting CDC head

Pres. Obama late yesterday named bioterrorism and infectious disease expert Richard Besser interim director of the U.S. Centers for Disease Control and Prevention (CDC).

January 23, 2009 — Coco Ballantyne

Break out your summer clothes--It's going to get hotter sooner

Hate the cold? Well hey, here's a cynically silver-lined perk to global warming: Hot days come earlier than they once did.

Earth's average temperature increased by 1.33 degrees Fahrenheit (0.7 degree Celsius) from 1905 to 2005, according to the Intergovernmental Panel on Climate Change (IPCC)...

January 22, 2009 — Jordan Lite

The science of the Oscars

The little gold men are on their way. And Hollywood has science to thank for many of this year's Oscar nominees.

Leading the pack with 13 nominations (including for Best Picture and Actor in a Leading Role for star Brad Pitt), The Curious Case of Benjamin Button , poses a curious question, indeed: Could humans reverse the aging process?...

January 22, 2009 — Katherine Harmon

Skiway silence

Editor's note: Marine geophysicist Robin Bell is leading an expedition to Antarctica to explore a mysterious mountain range beneath the ice sheet. Following is the nineteenth of her updates on the effort as part of ScientificAmerican.com's in-depth report on the "Future of the Poles." AGAP SOUTH CAMP, ANTARCTICA--The camp skiway is a three-mile long strip of ice sheet that has been polished by the Tucker snow cat and outlined by black flags...

January 22, 2009 — Robin Bell

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Dwindling Supply. Increasing Demand.

Dwindling Supply. Increasing Demand.

Solving the Water Crisis