NASA's rovers landed on Mars in 2004, with a life expectancy of 90 days. Five years on, they're still working, having amassed more data on the Red Planet than any other spacecraft.

Is evacuating a school bus full of children because of a lone peanut on the floor a smart precaution, or overkill?

Kidneys for transplant are typically stored on ice before surgery, but a new study suggests that using cold perfusion to store organs leads to better transplant success

Scientists are carefully measuring the geological activity in the national park because it contains the caldera of an enormous, ancient and still active volcano

Tomato juice? Birds' beaks? Myrrh? What to do when you drink too much

If 2008 seemed long, that's because it was -- a leap second longer than 2007.

What could possibly motivate a person to perpetuate a Ponzi scheme that is destined for failure -- and jail time?

Everybody falls off the wagon at least once. But if you know what to do when it happens, you've got a better chance of changing your bad habits for good

If risk-taking behavior looks like addiction, there may be a biological reason for that: both behaviors involve the brain's feel-good chemical, dopamine.

A new study published in the January issue of Pediatrics finds that teenagers who took chastity vows are as likely as their peers to have premarital sex, but less likely to protect themselves

Everybody falls off the wagon at least once. But if you know what to do when that happens, you've got a better chance of changing your bad habits for good

A Scottish study suggests that romantic movies create unrealistic expectations in real life

A new study indicates that coronary calcium, the kind that may cause heart attacks and strokes, increases the fewer hours you sleep

Forty years ago this season, American astronauts orbited the moon for the first time, offering a moment of optimism at the end of a long, grim year

In his new book, Food Matters, the Minimalist himself argues for a simpler, less meat-filled diet.

Scientists say a rare sleep disorder may be a precursor of the eventual onset of severe symptoms of the disease

It's been exactly 15 years since the FDA first approved the "female condom," but it still hasn't found its niche. A Chicago-based company is hoping to change that

A study suggest that "low-glycemic index" foods may help lower blood sugar in patients with diabetes

La NiÑa may have made average temperatures in 2008 cooler than the years immediately prior, but the warming trend continues

Viewpoint: Obama's choice for Agriculture Secretary has been a supporter of environmentally destructive biofuels. But he could see the light

Decades after Stanley Milgrim's famous obedience studies, a professor replicating one of the experiments finds we're still hard-wired to submit to authority

Four years of patient screening and more than 22 hours of surgery have given a disfigured woman a new image

Fans call the Colorado Senator a pragmatist devoted to the land, but not all greens are so sure about Obama's pick for Interior Secretary

A injectable version of a daily anti-drinking pill may hold a key to bringing excessive drinking under control -- during the holidays and after