19/04/2012

Dawn gets extra time to explore Vesta

(Phys.org) -- NASA's Dawn mission has received official confirmation that 40 extra days have been added to its exploration of the giant asteroid Vesta, the second most massive object in the main asteroid belt. The mission ...

Georgia Tech researchers address bus bunching

As any city dweller knows, buses are rarely on time. It’s typical to wait a while, only to have several buses show up one after another, a phenomenon known as bus bunching.

Solar-grade silicon at low cost

(Phys.org) -- A new process developed by scientists at the University of Cambridge has the potential to drive down the cost of manufacturing solar-grade silicon and could increase the use of photovoltaic devices for capturing ...

Space Image: Rings, Titan and Enceladus

Saturn’s icy moon Enceladus hangs below the gas giant’s rings while Titan lurks in the background, in this new image taken by the Cassini spacecraft.   Faint detail of the tiger stripe markings can be seen ...

New microscope captures nanoscale structures in dazzling 3D

(Phys.org) -- A new x-ray microscope probes the inner intricacies of materials smaller than human cells and creates unparalleled high-resolution 3D images. By integrating unique automatic calibrations, scientists at the U.S. ...

History is key factor in plant disease, study finds

(Phys.org) -- The virulence of plant-borne diseases depends on not just the particular strain of a pathogen, but on where the pathogen has been before landing in its host, according to a new study from researchers at the ...

Google's Punchd wants to replace loyalty cards with an app

Over the years, Google has changed the way we search online and the way many businesses advertise online. With Android, the company has built the most popular smartphone operating system in the world. And now the tech giant ...

Scientists: Fish are sick where BP's oil spill hit

(AP) -- Two years after the massive Gulf of Mexico oil spill, scientists say they're finding trouble with sick fish that dwell along offshore reefs and in the deep waters - especially in places where the oil spill hit the ...

New coating for hip implants could prevent premature failure

Every year, more than a million Americans receive an artificial hip or knee prosthesis. Such implants are designed to last many years, but in about 17 percent of patients who receive a total joint replacement, the implant ...

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