ESA's Cluster mission establishes why Earth's aurorae shine

ESA's Cluster mission has established that high-speed flows of electrified gas, known as bursty bulk flows, in the Earth's magnetic field are the carriers of decisive amounts of mass, energy and magnetic perturbation towards ...

Researchers provide first evidence for learning mechanism

Finally confirming a fact that remained unproven for more than 30 years, researchers at MIT's Picower Institute for Learning and Memory report in the Aug. 25 issue of Science that certain key connections among neurons get ...

Nanowire arrays can detect signals along individual neurons

Opening a whole new interface between nanotechnology and neuroscience, scientists at Harvard University have used slender silicon nanowires to detect, stimulate, and inhibit nerve signals along the axons and dendrites of ...

Unusual rods get thicker when stretched

Day-to-day experience teaches us that stretching an object makes it thinner; pushing it together makes it thicker. However, there are also materials that behave contrary to our expectations: they get thicker when stretched ...

One-two particle punch poses greater risk for astronauts

It doesn't just matter how much radiation an astronaut is exposed to, time and the order in which charged particles strike human cells are important factors as well. That's the main finding of a study simulating radiation ...

New Definition of 'Species' Could Aid Species Identification

Scientists at Texas Tech University argue that defining mammalian species based on genetics will result in the recognition of many more species than previously thought present. This has profound implications for our knowledge ...

Tiny shrimp species found in Pa. river

(AP) -- Biologists have discovered a species of shrimp in the Monongahela River for the first time, a discovery the scientists say is evidence that the river's water quality is improving.

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