The Universe of Particles exhibition at CERN in 2011. Fabrice Coffrini/AFP/Getty Images hide caption

itoggle caption Fabrice Coffrini/AFP/Getty Images

This visualization shows the electron density in a quantum dot, an artificial atom. Wei Qiao, David Ebert, Marek Korkusinski, Gerhard Klimeck/NCN, Purdue University hide caption

itoggle caption Wei Qiao, David Ebert, Marek Korkusinski, Gerhard Klimeck/NCN, Purdue University