Hale Observatories, the name of a group of observatories jointly administered by the California Institute of Technology and the Carnegie Institution of Washington, 196980. The group consisted of the Palomar Observatory, Mount Wilson Observatory, and Big Bear Solar Observatory, all in California; and Las Campanas Observatory in Chile. The group was named in honor of the astronomer George Ellery Hale.
Although other planets have rings, none are as spectacular as Saturn's. What makes the planet's stratified rings, and how did they get there in the first place?
A ball of fire blazed through southern Peru and left a huge crater -- and then villagers started getting sick. Early reports said the groundwater boiled and the air filled with sulfur. What happened?