By Alexander Krivenyshev | Araruna, Paraiba, Brazil

By Victoria Buckman | Waldo, FL, USA

By Hassan Dadashi . arani | Hamadan . Iran

By Brenda J. | Tacoma, Washington, United States

By Ron Dovzak | Muley Point, UT

By Hassan Dadashi . arani | Hamadan . Iran

By Steven Speliotis | Long Island City, NY

By Lou Musacchio | Montreal Quebec Canada

By Justin Maune | Sunrise Point, Bryce Canyon

By Diane Piercy | El Dorado Hills, CA

By Asha Prasad | Minnesota, USA

By Harshwardhan Pathak | IC Astronomy Observatory, Spain

By Paul Wilson | Paso Robles CA. USA

By Rodrigo Castro | Atacama Desert

By Hassan Dadashi . arani | Hamadan . Iran

By Kathie O'Donnell | Rapid City, SD USA