By James Gunderson | Laurel mt usa

By Scott MacNeill | Frosty Drew Observatory, Charlestown, RI, USA

By Leif Larson | Washburn, wi, United States

By Sonam Deki | Paro, Bhutan

By Salil Kawli | Mumbai

By Radu Anghel | Bacau, Romania

By Eyad Khailany | Erbil, Iraq

By Radu Anghel | Bacau, Romania

By Matthew Cosby | Ancient Bristlecone Pine Forest (Bishop, CA)

By Raul Cortes | Monterrey, Mexico.

By Matthew Cosby | Devil’s Golf Course (Death Valley, CA)

By Kannan A | Woodlands, Singapore

By Alexander Stinchcomb | Palmbay Florida

By Joel Weatherly | Edmonton, Aberta, Canada

By Rusin Tiago | Pirenópolis/GO - Brazil

By David Byers | Austin, TX, USA