An analysis of skeletal remains show that up to about the time the Europeans settled, the Native American population was rapidly increasing
A Russian cyber assault that cripples Kiev's military and energy systems is believed feasible - but remains unexploited for now
Researchers had touted much simpler method for transforming ordinary mouse cells into stem cells, but now acknowledge "extensive" errors in their work
Board says program is legal but "close to the line of constitutional reasonableness"
Despite the rise in plastic production since the 1970s, the amount of plastic in the ocean is less than expected and scientists aren't sure why
DNA testing of alleged Bigfoot and Yeti hair samples reveals actual source
Physics professor is offering his own money to anyone who can submit irrefutable proof that climate change doesn't exist
Feminized male fish were discovered swimming in three Pennsylvania rivers, a sign that the water may be tainted with chemicals from human activity
With Apple's acquisition of Beats and Amazon's launch of Prime music, the competition between tech giants over streaming music is heating up
NASA launches a Delta 2 rocket from Vandenberg Air Force Base in California. It will be a research satellite designed to track carbon dioxide - the chief culprit behind climate change.
NASA craft will measure levels in atmosphere of carbon dioxide, a greenhouse gas with key role in climate change
A new invention could allow you to control your computer with a smile and a nod -- hands-free. The device would replace a mouse or track pad, using sensors attached to glasses to detect head movements and facial expressions that direct the movement of your cursor.
A new invention lets you click and scroll around the screen with facial movements, even play games hands-free
Chemistry plays a key role in our spectacular celebrations
Museum exhibition in Japan explores the science of human waste disposal
The biggest threat to emperor penguins may not be leopard seals or even killer whales, but a much larger predator
The number of earthquakes is much higher than average this year, but there's no evidence they're connected
Hundreds of thousands of Facebook users were part of an experiment to manipulate emotions and they didn't know it. CNET.com's Sumi Das reports on what the social media giant is now saying about the experiment and what users can do about it.
With Wall Street questioning their moneymaking potential, Twitter may be searching for a new revenue stream
Eighteen teams from around the world are still in the running for $30 million in prize money and the chance to launch their own spacecraft to the moon next year. The Google Lunar XPrize competition is entering the home stretch, as CNET's Tim Stevens brings us the highlights.