Uncategorized
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EnvironmentBroadcom MASTERS: Meet the winners!
Young teens show off the research that won them a place in the national spotlight.
By Sid Perkins -
AnimalsAnts on guard
Tiny insects can take on big critters — from fly larvae to giraffes — in defense of their home, sweet home. And that home pays them back for this help.
By Roberta Kwok -
ComputingCyber warriors
Contests where teens compete to keep computers safe from hackers are helping to train and grow the next generation of cyber defenders.
By Eric Niiler -
Materials ScienceLooking unbelievably cool
Everything above absolute zero gives off some heat. Usually objects radiate more heat — or energy — as their temperature climbs. But engineers now have created a material that sometimes appears to cool even as it is warming.
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PlanetsThe comet that came in from the cold
Comet ISON is hurtling toward the sun at breakneck speed. During this first (and possibly last) trip around the sun, it will either shoot back into space or be torn apart.
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BrainSleeping brains take a bath
During waking hours, litter builds up in the spaces between brain cells. A new study shows that during sleep, fluid from the brain and spinal cord takes out this trash.
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EarthWater helped erect Iceland’s lava towers
Science pointed the way to understanding why these curious natural pillars form.
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BrainIn pursuit of memory
Why is granny so forgetful? Scientists must learn how the brain builds memories if they hope to figure out why recall fails in old age.
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FossilsKing of Gore
Paleontologists debut the oldest T. rex ancestor. Weighing as much as a car and longer than a two-story building is tall, this meat eater would have been one fierce predator.
By Janet Raloff -
PlanetsSo many ‘Earths’
A new analysis suggests humans are not alone in the universe. Our galaxy alone may host billions of Earth-like planets, ones able to support life as we know it.
By Andrew Grant -
BrainOne eye, 3-D
Most scientists think people need two eyes to see a flat image or movie in three dimensions. However, a new study suggests seeing in 3-D with one-eye is possible.
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FossilsWhere do humans come from?
Some scientists propose a newfound South African species as the most likely ancestor of the line that led to humans. But not everyone accepts that this is where it all began.
By Bruce Bower