Vapour trails at night. These high-altitude trails appear similar to noctilucent clouds. They were,in fact,related to a missile launch and are thus 'man-made'. True noctilucent clouds are more extensive and more uniformly white,but have a very similar appearance. Photographed in Finland | |
Licence : | Droits gérés |
Crédit: | Science Photo Library / PEKKA PARVIAINEN |
Taille de l’image : | 3846 px × 2642 px |
Model Release : | Non requis |
Property Release : | Non requis |
Restrictions : | - |