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Dr. Wikipedia: The 'Double-Edged Sword' Of Crowd-Sourced Medicine

A report on health and social media finds that Wikipedia is the "single leading source of medical information" for patients and health care professionals. But not all the articles are accurate. To address that issue, Dr. Amin Azzam requires his fourth-year medical students to revise and publish medical articles on the site.
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Do Brain Training Games Work?

An explosion of brain training games has people using apps and software programs to improve memory and reasoning. One study says the positive effects can last a decade. Skeptics disagree.


Far Out Photo: Earth As 'Evening Star' Over Mars

The Curiosity rover has sent back an image that shows a tiny bright dot over the Mars horizon. It's Earth. Compare that to other famous photos of our planet taken from space.

Oldest 'Out Of Africa' Human Footprints Found On British Coast

Scientists have found the oldest-known footprints outside Africa, dating from between 800,000 and 1 million years ago, on a beach facing the North Sea.

Who 'Won' The Creation Vs. Evolution Debate?

Days after a wide-ranging debate on creationism and evolution between Bill Nye and Ken Ham, the topic is driving an online conversation about points raised in the debate. Themes of belief and literalism, logic and faith — and, for some, relevance — are being debated online.

NASA Probe Finds Newly Formed Crater On Mars

The impact that formed the 100-foot-diameter scar threw Martian rock and soil more than nine miles across the surface.

Woolly Mammoths' Taste For Flowers May Have Been Their Undoing

New research shows a big part of the woolly mammoth's diet was made up of tiny flowers rather than grass. When the flowers disappeared, the mammoths did, too.

Seeing Less Helps The Brain Hear More

People who are blind from birth are often better than sighted people at processing certain aspects of sound. A mouse study hints at why: Even a few days in the dark helped "rewire" the auditory center of an adult animal's brain.

Chemical Study Becomes A Tale of Conspiracy And Paranoia

Tyrone Hayes, a biology professor at the University of California, Berkeley, has spent the past 15 years to studying the adverse effects of atrazine, a common herbicide used in the U.S. For much of that time, Hayes believed he was being watched and closely followed by Syngenta, the Swiss company that produces the chemical, in an effort to discredit his findings. Audie Cornish talks to New Yorker reporter Rachel Aviv for more.

California Is So Dry, Some Diners Won't Get Water Unless They Ask

Across the state, towns and cities now see waste in the the full water glasses left on diners' tables. Santa Cruz is one of the first California towns to bar restaurants from serving drinking water unless diners request it.