Dark, massive asteroid to fly by Earth on May 31

Dark, massive asteroid to fly by Earth on May 31

It's 1.7 miles long. Its surface is covered in a sooty black substance similar to the gunk at the bottom of a barbecue. If it impacted Earth it...

<i>Ewwww </i>-- poop in pools more common than you may think, CDC warns

Ewwww -- poop in pools more common than you may think, CDC warns

Attention swimmers: More than half of the public pools tested in a new study contained bacterial evidence that someone may have  pooped in the...

NASA's planet-hunting Kepler telescope disabled

NASA's planet-hunting Kepler telescope disabled

Planet-hunting scientists were dealt a major blow Wednesday when NASA officials announced that a crucial wheel on the Kepler space telescope had...

Alabama tornado team scours paths of killer storms

Alabama tornado team scours paths of killer storms

HACKLEBURG, ALA. -- The Mobile Meteorological Measurement Vehicle -- a worn-looking '90s-model Dodge Intrepid with classic rock on the radio, a...

Angelina Jolie's choice is clear to one who faced it

Angelina Jolie's choice is clear to one who faced it

Abrupt climate shifts spurred Stone Age innovation in Africa

Abrupt climate shifts spurred Stone Age innovation in Africa

A rapid shift in climate that brought wetter and warmer conditions in southern Africa during the Middle Stone Age helped propel innovation...

It's finals week: Do you know what your teen is taking to study so hard?

By the end of high school, 12% of teens say they have taken a stimulant medication for reasons other than to treat attention-deficit...

Scientist's video, radar track birth of Oklahoma tornado [VIDEO]

Scientist's video, radar track birth of Oklahoma tornado [VIDEO]

Monday’s killer twister in Moore, Okla., intensified unusually rapidly, said a tornado researcher who tracked the storm from a perch...

More gym for kids means less chance of obesity, Cornell study says

More gym for kids means less chance of obesity, Cornell study says

More physical education in kindergarten through fifth grade means less chance of obesity, especially for boys, researchers say.

Images from space, radar show Oklahoma tornadoes

Images from space, radar show Oklahoma tornadoes

Images showing the massive tornadoes spawned by "super cell" thunderstorms over Oklahoma, and the scars they left behind, have been released...

Oklahoma tornado is a standout, storm scientist says

Oklahoma tornado is a standout, storm scientist says

A tornado researcher at the University of Alabama at Huntsville couldn't believe it when he heard Monday that a devastating twister was...

NASA Curiosity drills second Mars rock to check John Klein surprise

NASA Curiosity drills second Mars rock to check John Klein surprise

NASA’s Mars rover Curiosity has already met its mission goals, discovering that parts of the Red Planet could have been friendly to...

Ketamine: a potential rescue drug for depression takes a step forward

Ketamine: a potential rescue drug for depression takes a step forward

For years, physicians have been inching their way to a better understanding of how -- and how well -- the drug ketamine, a "twilight drug"...

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