British theoretical physicist Peter Higgs (left) and Belgian theoretical physicist Francois Englert were awarded the Nobel Prize in physics on Tuesday. Fabrice Coffrini/AFP/Getty Images hide caption

itoggle caption Fabrice Coffrini/AFP/Getty Images

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