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Scientists have learned that compact fluorescent light bulbs could give off ultraviolet radiation if their inner coating cracks. Light-emitting diodes, another eco-friendly lighting option, won't give you a sunburn, but they do have the potential for other mild health effects.

Farmers are emptying some of the world's most important aquifers faster than rainfall can replenish them, which means less water for everyone. This map from the journal Nature shows where irrigation is doing the most damage.

One NASA scientist joked that one would be forgiven for thinking the agency was pulling a fast one by placing a rover in the Mojave Desert and saying it's on the Red Planet.

In an era where political campaigns launch daily attacks and new information constantly emerges about candidates online, voters may turn to fact-checking sites to sort out the truth. Political Junkie Ken Rudin and Glenn Kessler, "Fact Checker" columnist for The Washington Post, discuss the challenges of checking the facts.

You could soon pay for a latte at Starbucks simply by walking into the store with a smartphone in your pocket and giving the cashier your name. Square, a San Francisco-based payments startup unveiled a deal Wednesday with the world's largest coffee chain that will move its mobile payments products into Starbucks stores around the world.

Many are asking if University of Colorado officials should have known that former student James Holmes, the suspect in the Aurora, Colo., shootings, was potentially dangerous. Schools nationwide are evaluating how they respond to threats, and grappling with limits on what they can do to prevent such tragedies.

Critic Tom Moon says the chilly moodiness of La Havas' tracks sets the young British singer apart. Her debut has perhaps too many songs about heartbreak, but in the best ones, she sounds almost shattered.

Intellectual property and penalties for infringement have been fertile ground for writer Rob Reid.

She called the moment a "huge step forward" for women in Saudi Arabia.

The biggest single issue for Florida nurse practitioner Sofia Martinez is her support of the DREAM Act. But she plans to vote for Republican Mitt Romney, who has said he would veto the measure. Her view might seem full of contradictions, but that's common among voters in Hillsborough County, as they consider complex issues.