From left: Randy Schekman, Thomas Suedhof and James Rothman shared the 2013 Nobel Prize in Physiology or Medicine. Reuters /Landov hide caption

itoggle caption Reuters /Landov

A Swiss cardiologist plots a cheeky graph that shows a country's chocolate consumption may predict its chances of winning a Nobel. John Loo/Flickr.com hide caption

itoggle caption John Loo/Flickr.com

NIST physicist and Nobel Prize-winner David Wineland adjusts an ultraviolet laser beam used to manipulate ions in a high-vacuum apparatus containing an "ion trap." These devices have been used to demonstrate the basic operations required for a quantum computer. Copyright Geoffrey Wheeler/National Institute of Standards and Technology hide caption

itoggle caption Copyright Geoffrey Wheeler/National Institute of Standards and Technology

Remnants of Tycho's Supernova, seen in an X-ray/infrared composite image. The supernova was observed by Tycho Brahe and other skywatchers in 1572.

MPIA/NASA hide caption

itoggle caption MPIA/NASA