europeanspaceagency:
Comet 67P activity – 10 September 2014 - OSIRIS
Nuno Esperanço:
Crystal blue
wwarby:
Clouds
Old Photo Profile:
Fluffy clouds on a blue evening sky
Pedro Couto e Santos:
Encontrado na casa nova: bengala de quatro pés
jurvetson:
Heroic Memories of John Young