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Stunning And Amazing: Northern Lights Wow U.K.

"It is just good luck," says astronomer Mark Thompson of the BBC's Stargazing Live. "The last time I have seen it this spectacular was probably 20 years ago."

A Strong Sex Life Helps Couples Cope With The Trials Of Aging

Everybody knows a healthy sex life is important for a good marriage. But keeping the spark in the bedroom may be even more crucial for older couples dealing with chronic illness.

13 Workers Exposed To Radiation At N.M. Nuclear Waste Dump

An accident at the site appears to be more serious than first disclosed. Nobody knows what happened, but it's shaping up to be a major setback for the nation's only dedicated nuclear waste dump.

Chickens That Lay Organic Eggs Eat Imported Food, And It's Pricey

America's farmers aren't growing enough organic corn and soybeans for our organic animals. Farmers in China, India and Argentina are filling the gap, but tight supplies have led to shortages.

U.S. Lets 141 Trillion Calories Of Food Go To Waste Each Year

Americans wasted 31 percent of all food that was available in 2010, the USDA reports. For the first time, the agency calculated what that means in terms of calories, too.

Neil DeGrasse Tyson Explains Why The Cosmos Shouldn't Make You Feel Small

The astrophysicist says that participating in a "great unfolding of a cosmic story" should make us feel large, not small. This spring, Tyson hosts a TV series called Cosmos: A Space-Time Odyssey.

More Hints That Dad's Age At Conception Helps Shape A Child's Brain

A study that took many other potential influences into account found that kids born to men 45 and older were more likely than the children of younger fathers to develop autism or ADHD.

Robot Swarm: A Flock Of Drones That Fly Autonomously

Inspired by birds that fly in tight bunches, researchers fit drones with GPS, processors, and radios that allow them to navigate in formation or while following a leader.

Feeling The Fiscal Squeeze, EPA Seeks To Slim Down

The Environmental Protection Agency is offering buyouts to some of its employees. The move comes as a number of federal agencies, under pressure from the sequester, are trying to slim their budgets.

Portable Potables: How To Fight Drought By Reusing Water

David Sedlak, a professor of civil and environmental engineering at the University of California, Berkeley, explains the many methods of capturing and reusing drinking water.