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A NASA spacecraft orbiting the huge asteroid Vesta is beaming home images that reveal the giant space rock like never before, showing its battered and pockmarked surface in stunning detail. [More]

California likes to think of itself as being ahead of the curve. So when the state set out to reduce greenhouse gas emissions, regulators did all the right things - stringent tailpipe standards for cars, tighter codes for buildings, higher renewable energy standards for utilities. Then they took one of the most aggressive energy-saving steps of all.

Researchers at the Massachusetts Institute of Technology have come one step closer to replacing the lithium-ion batteries that power phones, laptops and electric cars with a device that stores far more energy for the same weight. The device is known as a lithium-air or lithium-oxygen battery.

By Molly O'Toole WASHINGTON (Reuters) - Overnight thunderstorms peppered the Northeast on Monday and threatened to return with damaging wind gusts and hail as record-breaking heat tightened its grip on the Southern and Central Plains. [More]

Controversy has arisen again about whether holding a cell phone next to the head for too many minutes a day threatens the brain with electromagnetic radiation. The preponderance of evidence continues to indicate there is no threat. Many people do not realize, however, that we are increasingly surrounded by technologies that emit radiation in the same radiofrequency portion of the electromagnetic spectrum: WiFi routers, Bluetooth transmitters and more .

Every week I post a quick Q&A with one of our bloggers on the network, so you can get to know them better.

An upbeat attitude can do more than put a spring in your step; it can also improve medical outcomes. Although the power of positive thinking is clear, little is known about how negative mind-sets affect the success of therapies. Now cognitive neuroscientist Irene Tracey of the Uni

The Colchester Zoo in England is home to a community of mandrills, the largest of the monkeys. One of these mandrills, a female named Milly, began covering her eyes with her hand when she was three. A dozen years later Milly and her zoo mates continue to perform this gesture, which appears to mean “do not disturb.” The signal is the first gesture with cultural roots reported in monkeys

By Chris Meyers TOKYO, Aug 1 (Reuters Life!) - For some elderly survivors of [More]

You cannot see them, but radio waves pervade your peaceful living space. They emanate from an increasingly large menagerie of electronic gadgets, appliances and satellites. FM radio and broadcast television have been around for years; more recently, cell phones and Wi-Fi routers have added their high frequencies to the mix

By Yuko Takeo TOKYO (Reuters) - More than a dozen regional governments in Japan will conduct tests to determine whether locally grown rice contains too much radioactive cesium, farm ministry officials said on Monday, as food safety worries spill into the country's traditional staple.

Stand up.

By Jim Forsyth [More]

By John Crawley and Deepa Seetharaman WASHINGTON/DETROIT (Reuters) - Automakers have agreed to produce by the quarter-century mark the most fuel- efficient cars and trucks ever that will leverage new designs and technology, but still rely heavily on gasoline engines. [More]

#NYCSciTweetUp is an open and informal gathering of people interested in science, science communication, science education, science writing, blogging, online social networks and science journalism. [More]