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

By Hassan Dadashi Arani | Esfahan province. Iran

By Hassan Dadashi Arani | Esfahan province. Iran

By Patricio Leon | Santiago, Chile

By Lynn Martin | Madison WI USA

By Viral Munshi | Bad Water Basin, Death Valley, CA

By Judy Boyle | Whitehall, MT USA

By JD Smith | Clay County Minnesota

By Andy Dungan | Near Cotopaxi, Colorado USA

By Stephane Picard | Quispamsis, New Brunswick, Canada

By Hassan Dadashi Arani | Esfahan province. Iran

By Patricio Leon | Santiago, Chile

By Robert Earl | Tempe, Arizona, USA

By Lindsay Davis | Johnstown Colorado USA

By Mario Rana | Hampton, Virginia

By Alexander Krivenyshev | Tasman Sea