Published on December 20, 2012

Biker Santas wear motorcycle boots under their suits.

Published on December 20, 2012

Published on December 20, 2012

Kaiser Foundation Hospital in San Diego.

Published on December 20, 2012

Matt Sanford, senior ranger of Mission Trails Park, stands in front of a piece of open space that will make San Diego's biggest park even bigger.

Published on December 20, 2012

Published on December 20, 2012

Conrad Prebys and Debbie Turner, Masterpiece Trust supporters and KPBS Hall of Fame Inductees for 2012.

Published on December 20, 2012

Most hydraulic fracturing in California is done to extract to oil in areas like this field in Kern County. The state is drafting fracking regulations for the first time.

Published on December 20, 2012

Craig Pusley

Published on December 20, 2012

Frey, Sigrun and others explore the inside of a volcano.

Published on December 20, 2012

Chris Hayward inspects a volcanic rock sample at his desk.

Published on December 20, 2012

Anja Schmidt uses a rock hammer to retrieve a lava sample

Published on December 20, 2012

Frey and Sigrun surveying the volcanic landscape, Iceland.

Published on December 20, 2012

Icebergs in water with small boat and mountains in the background, Iceland.

Published on December 20, 2012

Elevated view of bridge over a river and house in the foreground with mountains in the background.

Published on December 20, 2012

Valley with a snowy mountain, Iceland.

Published on December 20, 2012

Elevated view of a glacier.

Published on December 20, 2012

Frey and Sigrun explore the inside of a volcano in a cage.

Published on December 20, 2012

Frey and Sigrun surveying the volcanic landscape, Iceland.

Published on December 20, 2012

A public memorial service in Encinitas for Ravi Shankar, the Indian sitar virtuoso.

Published on December 20, 2012

Organizers at the 2011 guns for gift cards exchange collect guns from San Diegans.

Published on December 20, 2012

Deanna Mackey, and her mother, Connie Martin in December 2011.

Published on December 20, 2012

Sen. John Kerry (D-Mass.), chaired a Senate hearing Thursday on the Sept. 11 attacks in Benghazi, Libya.

Published on December 20, 2012

Credit: mybulldog, via flickr.

Published on December 20, 2012

Tourists are seen in front of the "Gran Jaguar" Mayan temple at the Tikal archaeological site in Guatemala, where ceremonies will be held to celebrate the end of the Mayan cycle known as Baktun 13 and the start of the new Maya Era on December 21.

Published on December 20, 2012

Published on December 20, 2012

Published on December 20, 2012

Wes Danskin, USGS

Published on December 20, 2012