SAN DIEGO COUNTY, CA - A preliminary 2.2 magnitude quake occurred near Palomar Observatory on Tuesday morning, according to the U.S. Geological Survey. The tremor shook at 6:32 a.m., with its ...

ARCADIA, Calif. – A dozen aircraft dropped water and fire retardant as crews worked in steep terrain Tuesday to battle a blaze near an historic observatory and communications towers on Mount Wilson ...

California's massive wildfires threaten the 133-year-old observatory. When you purchase through links on our site, we may earn an affiliate commission. Here’s how it works. Breaking space news, the ...