Photo: Massive explosion hits California neighborhood

An explosion and fire fueled by a ruptured natural gas line engulfed a neighborhood in San Bruno, Calif., on Thursday, September 9. Photo: AP/Paul Sakuma

Photo: On this day in 1850, California became a state

Half Dome as seen from Yosemite Valley in California. Photo: Flickr/Aypho

Photo: Today in history, New Amsterdam became New York in 1664

New York City's Pennsylvania Station in April 1962, two years before it was demolished. Photo: Cervin Robinson

Photo: Mount Sinabung erupts

Mount Sinabung releases volcanic ash into the sky in North Sumatra, Indonesia. Photo: AP/Dedy Zulkfil

Photo: Earl from space

The view of Hurricane Earl from the International Space Station. Photo: Courtesy NASA