By Mark Wralstad | Virginia Beach, VA, USA

By Kannan A | Woodlands, Singapore

By Kevan Hubbard | Percy Main ,Northumberland ,England

By Aurelian Neacsu | Vișina, Dâmbovița, Romania

By Armando Caussade | San Juan, Puerto Rico

By Guido Santacana | San Juan, Puerto Rico

By Patricio Leon | Santiago, Chile

By Dolores Moreno | Highland, CA

By Jelieta Walinski Ph.D | Desert Bloom Observatory, AZ, USA

By Kevan Hubbard | Corbridge,Northumberland ,England

By Hassan Dadashi Arani | Esfahan. Iran

By Victoria Bryhan | Finley National Wildlife Refuge, Oregon

By Guido Santacana | San Juan, Puerto Rico

By Hassan Dadashi Arani | Esfahan. Iran

By Patricio Leon | Santiago, Chile

By David Hawkes | South Yorkshire, UK