The shooting spree dealt a new blow to an American military already under severe strain from repeated combat tours during years of war in Iraq and Afghanistan.


The 2012 doomsday hype is spreading like wildfire, but where's the science? We ask the experts.
Ace dwarf planet hunter Mike Brown can't find the fabled Planet X. Or can he?
How many ways must the world die? Ray Villard debunks 10 of his favorite theories.

The Wall Street Journal has discovered global cooling. Only problem: It's bad science.
True or False? 13 bat questions to test your awesome bat powers.
They are digging up more all the time. So why are their numbers falling?

The road to digital television is littered with inventions that didn't quite catch on.
Technology pioneered in genetic engineering is giving way to new, engineered organisms.
Fuel made from nanoaluminum and ice could power missions to the moon or Mars.

Children with weak memories are more likely to engage in risky behaviors, research shows.
Average marathon times of female runners suffered in areas with higher pollution levels.
Intuitive thinking, developed before birth, is linked to belief in paranormal phenomena.

It wasn't just men that produced Paleolithic cave drawings, new evidence suggests.
The foot and sandal prints show just how ancient craftsmen built the elaborate piece.
A modern Swiss leg is mummified with the salty recipe to prove it can be done.

DNA samples from thousands of animal species could offer new insights into the evolution of vertebrates.
Albatross chicks are dining on a massive, floating garbage patch in the Pacific.
The first detailed anatomical atlas of a living wildlife species has been constructed.

Though only as big as a squirrel, a recently identified dinosaur from Colorado -- coexisted with enormous other species.
An Indian impact crater suggests a meteor strike may have killed the dinosaurs.
Broken dinosaur bones indicate they were smashed underfoot by other dinosaurs.

The company that has exclusive rights to salvage the Titanic is planning an expedition.
Amelia Earhart mostly likely died as a castaway on an uninhabited tropical island.
The Shroud has been reproduced with techniques that date back to the Middle Ages.
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