US scientist wins Nobel Physics

George Smith may not be a household name but his impact is easy to find. These images of the cosmos taken by the orbiting Hubble Telescope are possible thanks to his pioneering work in physics.

George Smith and his colleague Willard Boyle revolutionized digital imaging technology, and on Tuesday the two men each got an early morning call from Sweden advising they'd been awarded one half of the 2009 Nobel Prize for Physics.