By Nina Gorenstein | West Lafayette, IN, USA

By Jose Pedrero | Valencia, Spain

By Hassan Dadashi . Arani | Esfahan. Iran

By Stephen Montag | Livingston, N.J. USA

By Nina Gorenstein | West Lafayette, IN, USA

By Faiz Ahmad | Maryland, USA

By Brenda J. | Tacoma, Washington, United States

By Hassan Dadashi . Arani | Esfahan. Iran

By Richard Witkowski | Kemil Beach, Indiana Dunes National Park

By Mohammad Adeel | Lahore, Punjab, Pakistan

By Cecille Kennedy | Alsea, Oregon

By Brenda J. | Sumner, Washington, United States

By Stephen Bloodsworth | Silver Spring, Maryland USA

By Joel Weatherly | Edmonton, Alberta, Canada

By Mario Rana | Hampton, Virginia

By Eliot Herman | Utah Desert Observatory