It doesn't just occur in clouds; it can appear in clear air, in the ocean, and even in the atmosphere ... to blanketing the entire sky. Cumulus clouds are the default cloud when it comes to ...

Earth and space mingle in stunning ways for the 2025 Milky Way Photographer of the Year contest. From the “geological masterpiece” of Coyote Buttes, Utah to the sandstone terrain of desolate Ennedi, ...

According to Earth Sky, the best time to see the phenomenon is during a clear, non-hazy day with no clouds on the horizon. Besides being visible from the ocean or beach, the green flash can also ...