By Paul Bacon | Grass Valley, California, USA

By Aaron Schroeder | Saguache County Colorado

By Christoph Stopka | Wet Mountains Colorado USA

By Peter Forister | Shenandoah National Park, Virginia, USA

By Lorraine Boyd | Cohoes, New York

By Barney Koszalka | OxBow Bend, Grand Teton National Park, WY

By hunter johnston | Williamsburg, Virginia

By Kathie O'Donnell | Rapid City, SD USA

By David Hoskin | Halifax, Nova Scotia, Canada

By Soham Botle | Mumbai, India

By Michael Teoh | Heng Ee Observatory, Penang, Malaysia

By Brian Mollenkopf | Lancaster, OH

By Jupiter Gogna | Roseville, CA

By Iaroslav Kourzenkov | Halifax, Nova Scotia, Canada

By Patricio Leon | Santiago, Chile

By Sheryl R Garrison | Waterton Lakes National Park, AB Canada