Scientists at the Large Hadron Collider near Geneva celebrate after the particle accelerator started smashing protons at record energies earlier today. Fabrice Coffrini/AFP/Getty Images hide caption

itoggle caption Fabrice Coffrini/AFP/Getty Images

Workers rest in front of the cooling towers of a coal-fired power plant in Dadong, China. Such plants are a major contributor to carbon dioxide emissions. Andy Wong/AP hide caption

itoggle caption Andy Wong/AP

The earthquake that rocked Chile was powerful enough to damage a highway near Santiago — and even to shift the location of the Earth's rotation pole. Carlos Espinoza/AP hide caption

itoggle caption Carlos Espinoza/AP

15 minutes outside of Port-au-Prince, along the shoulder of National Road 2, a sign from the Department of Tourism instructs people not to throw garbage. But this site has now become a makeshift dump, where rubble from the Jan. 12 earthquake is piled as far as the eye can see. Richard Harris/NPR hide caption

itoggle caption Richard Harris/NPR

A 60-mile-long iceberg known as B9B, right, crashes into the Mertz Glacier Tongue, left, in the Australian Antarctic Territory on Saturday. The collision created a new 48-mile-long iceberg. AP Photo/Commonwealth of Australia hide caption

itoggle caption AP Photo/Commonwealth of Australia