The luminous purple sky is mirrored in the thin sheet of water across the world’s largest salt flat, Salar de Uyuni, in Bolivia.

Photograph by Xiaohua Zhao



It’s that time of year again! The nights are dark enough that when a good solar wind is blowing, the ‪Northern Lights‬ are visible in the sky over Denali National Park and Preserve. Here is what the aurora borealis looked like at Monday night over the Toklat River and through the trees. Photos by Daniel A. Leifheit, National Park Service.


When was the last time you looked at the night sky after a day of hiking? This gorgeous timelapse video shows the Milky Way over the Needles District in Canyonlands National Park (Utah). Video courtesy of Emily Ogden, media intern at Canyonlands. 🌌