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

By Tom Cofer | Lakewood Ranch Florida

By Marjorie Rief | Micanopy, FL

By Christoph Stopka | Wet Mountains, Colorado. USA

By Cecille Kennedy | Depoe Bay, Oregon

By PAOLO PALMA | Orvieto, Italy

By Lorraine Boyd | Maple Crest, New York

By Diane Rains | Hudson, WI, USA

By Mark Wralstad | Virginia Beach, VA, USA

By Hassan Dadashi Arani | Esfahan. Iran

By Stephen Mollick | Jackson Hole, WY

By Teresa Molinaro | Termini Imerese, Sicily, Southern Italy

By Hassan Dadashi Arani | Esfahan. Iran

By Alexander Krivenyshev | LaGuardia airport, New York City

By Craig Freeman | Mansfield, Ohio, USA

By Samit Saha | Tumin, Sikkim