SciDev.Net brings you the most commented on articles in 2012, including news, editorials and opinions, spanning topics as diverse as wind energy, access to weather data and communicating science.
Scientists have picked up fragments of people’s thoughts by decoding the brain activity caused by words that they hear. The remarkable feat has given researchers fresh insight into how the brain processes language, and raises the tantalizing prospect of devices that can return speech to the speechless. Though in its infancy, the work paves the…
Researchers at Penn State University have developed a chemical model that mimics a possible step in the formation of cellular life on Earth four-billion years ago. Using large “macromolecules” called polymers, the scientists created primitive cell-like structures that they infused with RNA – the genetic coding material that is thought to precede the appearance of…
Disgust – it’s an emotion we experience when we encounter things that are dirty, impure, or otherwise contaminated. From an evolutionary standpoint, experiencing the intense, visceral sense of revulsion that comes with disgust presumably helps us to avoid contaminants that can make us sick or even kill us. But new research suggests that disgust not…
A hail of Martian meteorites crashed to Earth last July, and collectors and scientists around the world are snapping up the ultra-rare rocks for display and study. The meteorites fell in the Moroccan desert in July and were recovered a few months later. Scientists confirmed that the rocks are Martian, presumably blasted off the Red…
The Wow! signal, a mysterious radio transmission detected in 1977 that may or may not have come from extraterrestrials, is finally getting a response from humanity. Anyone can contribute his or her two cents — or 140 characters, to be exact — to the cosmic reply via Twitter. All tweets composed between 8 p.m. EDT…
NASA is serious about sending astronauts back to the moon’s neighborhood and will likely unveil its ambitious plans soon now that President Barack Obama has been re-elected, experts say. The space agency has apparently been thinking about setting up a manned outpost beyond the moon’s far side, both to establish a human presence in deep…