Uncategorized
- Planets
The 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.
- Brain
Sleeping 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.
- Earth
Water helped erect Iceland’s lava towers
Science pointed the way to understanding why these curious natural pillars form.
- Brain
In 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.
- Fossils
King 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.
- Planets
So 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.
- Brain
One 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.
- Fossils
Where 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.
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- Space
Oldest, most distant galaxy found
Galaxy's light comes from a time shortly after the Big Bang.
- Fossils
How sharks survived the ‘Great Dying’
By abandoning their coastal homes, some sharks survived an event that caused mass extinctions of other species.
- Brain
Restoring a sense of touch
A zap to a monkey’s brain fools the animal into thinking its finger has been touched. The findings point to a way for artificial fingers to communicate with the brain so that touch “feels” more real.
