By GREG REDFERN | At sea off the coast of Tarfaya, Africa aboard Azamara Pursuit.

By Ken Christison | Eastern Northampton County, North Carolina, USA

By Dr Ski | Dumaguete, Philippines

By Asthadi Setyawan | Malang, East Java, Indonesia

By Dr Ski | Dumaguete, Philippines

By Dr Ski | Dumaguete, Philippines

By POSNE Night Sky Dennis Chabot | Rehoboth Ma USA

By Jenney Disimon | Sabah N. Borneo

By Jenney Disimon | Sabah N. Borneo

By Elke Schulz | Elqui Valley, Chile

By Steven Wells | Phoenix, AZ. South mountain.

By Stephanie Longo | Mueller State Park, Divide Colorado

By Ragini Chaturvedi | Freehold, NJ, USA

By Steven Sweet | Mississauga, Ontario Canada

By Daniel Bittner jr | Pymouth Massachusetts

By Judy Lundquist | Lawrenceburg KY USA