December 13, 2012 Commercial space travel is becoming a reality. Now people who have longed to go into space can buy a ticket, if they've got the cash. But are they healthy enough to make the voyage?
December 13, 2012 Given the history of first orbital space shots, North Korea's apparent struggle with its mission is fairly typical, experts say.
December 13, 2012 Communing with nature has long helped artists get their creative juices flowing. A neuroscientist wondered how backpacking trips without any electronic devices might change the way people solved problems.
December 12, 2012 Conventional wisdom holds that complex life evolved in the sea, then crawled up onto land. But a provocative new study argues that the procession might be drawn in the wrong direction. The earliest large life forms may have appeared on land long before the oceans filled with creatures.
December 12, 2012 In many parts of the world, there aren't enough doctors around to do post-mortems. Answers to a few questions can help a computer deduce what killed someone when an autopsy can't be done. The results can help guide decisions about public health.
December 12, 2012 Alzheimer's is the disease that creeps in and slowly erases what you know until, eventually, there's no more to erase. How this happens is still a mystery, but this short animation by Po Chou Chi tries to make poetic sense of what goes on.
December 12, 2012 The wolf known as 832F was taking a rare jaunt outside the boundaries of Yellowstone National Park when she was killed last week. Though her death is a blow to those who followed her story, some say hunting is a necessary part of the future of wolves in the West.
December 11, 2012 Red snapper, wild salmon, and other fish sold in some outlets were other, cheaper species, according to DNA tests done by an ocean conservation group. The report is just the latest in a string of investigations revealing that seafood mislabeling is commonplace.
December 11, 2012 There you are, hanging with the other pigeons. It's a sunny day. Tranquil. You are taking a bird bath along a river's edge, when suddenly, leaping out of the water onto the land, straight at you — is a fish! A pigeon-eating catfish. (We've got pictures.)
December 10, 2012 The barbs on porcupine quills help them pierce the skin. If the bumpy needles work so well for the big rodents, couldn't they they also help doctors and nurses giving injections? Designers of medical devices are looking to try the porcupine approach.