By Alice Meador | Peñasco new mexico

By Mohamed Mohamed | Libya,Tripoli

By Dr Ski | Valencia Observatory Garden, Philippines

By Dr Ski | 9.3°N, 123.3°E

By Dr Ski | 9.3°N, 123.3°E

By Dr Ski | 9.3°N, 123.3°E

By Alexander Krivenyshev | West New York, NJ

By kevan hubbard | Seaton Carew,Co Durham, England

By Richard Emuovhe | Lagos, Nigeria

By Radu Anghel | Bacau, Romania

By Radu Anghel | Bacau, Romania

By Radu Anghel | Bacau, Romania

By Andrew Dare | Cusco, Peru

By Jack Pope | Georgetown, Kentucky, USA

By Andrew Dare | Cusco, Peru

By Peter Lowenstein | Mutare, Zimbabwe