By Hassan Dadashi.arani | Esfahan.iran

By Dr Ski | Valencia Observatory

By Dr Ski | Valencia Observatory

By Peter Lowenstein | Mutare, Zimbabwe

By Albert Canary | Fontana 8/26/19

By Ken Lamberton | Bisbee, AZ, USA

By Mimi Ditchie | Near Avila Beach, California

By Dr Ski | Valencia Observatory

By Dr Ski | Valencia Observatory

By Dr Ski | Valencia Observatory

By Swami Krishnananda | Shimla, India, at the foothills of Himalayas

By Puya Hosseini | Ancient Bristlecone Pine Forest

By Kritika Bhardwaj | Indore, Madhya Pradesh, India

By Dr Ski | Valencia Observatory

By Josef Kleindienst Josef | Seychelles. Mahe

By Geraint Smith | San Cristobal, New Mexico