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 ...

A green flash can occur at either sunrise or sunset but is more easily observable during the latter. On a cloudless evening, Earth’s atmospheric sunlight distortion is most pronounced when the sun is ...

Green flashes usually happen in less than a second. But if you're lucky, a green flash could shine for a minute or two. Null has observed this only rarely, even after over 45 years of documenting ...

Every sunset on Earth ends with a brief but characteristic green flash. It's the result of the varying wavelengths of visible light. Understanding how it forms might help you to catch it.

One of those things, it turns out, is the green flash, an atmospheric optical feature that occurs when weather conditions and visibility are just right. Watch NBC Bay Area News 📺 Streaming free ...

The flash of green is so rare and unpredictable it’s often thought of as a myth or legend among mariners and in movies such as “Pirates of the Caribbean.” It’s better than folklore, it’s ...

Ever since the late Sarasota mystery writer John D. MacDonald wrote A Flash of Green in 1962, locals and visitors stand on the beach at sunset, hoping to see a brief burst of green light just as ...

A green flash can be seen at sunset in Siesta Key, Florida. (Image credit: Bernard Friel/Education Images/Universal Images Group via Getty Images) ...