By Mohamed Mohamed | Libya,Tripoli

By Dr Ski | Valencia Observatory

By Dr Ski | Valencia Observatory

By Hassan Dadashi.arani | Esfahan.iran

By Kandaswamy Natarajan | Coimbatore TamilNadu India

By Kandaswamy Natarajan | Coimbatore TamilNadu India

By Dr Ski | Valencia Observatory

By Dr Ski | Valencia Observatory

By Dr Ski | Valencia Observatory

By Dr Ski | Valencia Observatory Garden

By Colin Chatfield | East of Saskatoon, Saskatchewan

By Alexander Stinchcomb | Palmbay Florida

By Tim Yacyshyn | Richmond, British Columbia, Canada (49N; 123W)

By Tim Yacyshyn | Richmond, British Columbia, Canada (49N; 123W)

By Peter Andersson | Osby, Sweden

By Peter Andersson | Osby, Sweden