To see the rare green flash phenomenon, two conditions must be met: a clear day with no clouds or haze and a distant edge to ...

The green flash is a rare, brief optical event of green, yellow, and sometimes blue that colors the horizon, occurring at sunrise or sunset most often in the western U.S. Refraction and dispersion ...

Hummingbirds Are Zipping Around San Diego County’s backyard gardens, scrub-covered coastal hillsides, and the warming ...