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PhysicsNobel goes for creating the ‘nanoscope’
A regular microscope can’t bring into focus the nanoscale molecules from which cells are built. Using lasers and fluorescent molecules, three scientists found a way to view these tiny features. Their reward: the 2014 Nobel Prize in chemistry.
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PlanetsDistant world hosts water
One measure of an extraterrestrial world’s potential for supporting life is the presence of water. The Neptune-size HAT-P-11b fits that criterion.
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Materials ScienceNobel goes for making white LEDs possible
The 2014 Nobel Prize in Physics has been awarded to scientists who discovered how to make blue light-emitting diodes. People really wanted white LEDs. The missing ingredient in making them was a building block: the blue LED.
By Janet Raloff -
Health & MedicineArtificial sweeteners may evict good gut microbes
People use saccharin and other artificial sweeteners to try to stay healthy. A study now suggests such sweeteners might actually cause harm by encouraging the wrong bacteria to grow in our guts.
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BrainNobel goes for finding brain’s ‘GPS’
The 2014 Nobel Prize in Physiology or Medicine has been awarded to scientists who discovered how the brain maps our place within our environment.
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TechSquishy robot propelled by ka-pow!
This is not your average robot. It flies through the air, propelled by an explosion in one of its arms. It could prove useful in disaster areas or war zones.
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AnimalsPicture this: Too many walruses
A giant herd of walruses have hauled out onto a beach in Alaska. They don’t belong there, but with no ice nearby, they have taken to land.
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TechRepelling germs with ‘sharkskin’
A biotechnology company has found a way to repel superbugs without toxic chemicals. It mimics the texture of a shark’s skin.
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AnimalsRare as a rhino
Most species are rare. Some have always been rare. A problem develops when people are responsible for accelerating a species’ rarity to the point that extinction threatens.
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EarthExplainer: The volcano basics
Here’s an overview of what they are, where they form and the many ways they pose dangers.
By Sid Perkins -
Health & MedicineNews Brief: U.S. gets its first Ebola case
Although U.S. hospitals have treated a handful of American health-care workers who had become exposed to Ebola in Africa, the first case of a sick traveller has emerged. His Ebola infection showed no symptoms until several days after he reached Texas. (Update: On October 8, the man died.)
By Nathan Seppa -
FossilsEarly dino-era start for modern mammals
Fossils of an extinct group of rodent-sized mammals suggest they were related to modern mammals. These ancient remains push back the origin of mammals by many millions of years.