By Imaduddin Mohammed | Melbourne, Victoria, Australia

By Holly Harker | Routt County, Colorado

By Dr Ski | Valencia Observatory

By Dr Ski | Valencia Observatory Garden

By Dr Ski | Valencia Observatory Garden

By Dr Ski | Valencia Observatory

By Roger Mazzarella | Bowling Green, Ohio

By Michael Beck | Portland, Ct, USA

By Peter Andersen | Copenhagen, Denmark

By Kathleen Finnerty | St. Petersburg, Florida, USA

By Walter Argus | Birmingham, Alabama 35222

By Walter Argus | Birmingham, Alabama 35222

By Smita Parida | Rockville, MD

By Michael Wayne Holland | Lake Gibson-Lakeland, Florida

By Gadi Eidelheit | Palmahim Israel

By john washco | Ridley Creek State Park , Media pa