For the past three years, astronomers at the California Institute of Technology’s Palomar Observatory in Southern California have been using the High Performance Wireless Research and Education ...

The Grove fire, which ignited at about 1 p.m. Wednesday in the Sunshine Summit area north of Oak Grove and east of Palomar Mountain, was 100 percent contained as of Sunday night, reported Cal Fire.

A foggy path in Palomar Mountain State Park. (Ernie Cowan / For The San Diego Union-Tribune) It was also a chance to meet up with a man who calls this place both work and home. Will Meyst lives in ...

Caption the Palomar 48 inch telescope at the Palomar Observatory in California with an image of the Milky Way in the background. The stars represent the number of supernovae discovered in each ...