By Hassan Dadashi.arani | Esfahan.iran

By Hassan Dadashi.arani | Esfahan.iran

By Hassan Dadashi.arani | Esfahan.iran

By Dr Ski | Valencia Observatory

By Steven Sweet | Port Credit, Mississauga, Ontario Canada

By Dr Ski | Valencia Observatory Garden

By Dr Ski | Valencia Observatory Garden

By Dr Ski | Valencia Observatory Garden

By Roy Bradfield | City of Sunderland, England, UK.

By Roy Bradfield | City of Sunderland, England, UK.

By Katherine Crozier | West Trenton NJ

By Nicholas Holshouser | Black Balsam, Milepost 420, Blue Ridge Parkway

By Scott Kuhn | Northwest Georgia

By Dr Ski | Valencia Observatory

By Dr Ski | Valencia Observatory Garden

By Dr Ski | Valencia Observatory Garden