Stefan Hell

Stefan Hell, co-winner of this year's Nobel Chemistry Prize, was quietly checking a scientific paper when the phone rang Wednesday with what he thought initially was a prank call.

Americans Eric Betzig and William Moerner and German scientist Stefan Hell have won the Nobel Prize in chemistry for "the development of super-resolved fluorescence microscopy."

Stefan Hell, co-winner of this year's Nobel Chemistry Prize, was quietly checking a scientific paper when the phone rang Wednesday with what he thought initially was a prank call.

Americans Eric Betzig and William Moerner and German scientist Stefan Hell have won the Nobel Prize in chemistry for "the development of super-resolved fluorescence microscopy."