english: The beautiful Blue Marble image, taken by the Apollo 17 astronauts in 1972 had helped humanity become aware that we're on a fragile planet.
non_english: Predivna slika Plave planete koju su uslikali astronauti Apola 17, 1972. pomogla je čovečanstvu da postane svesno da se nalazimo na krhkoj planeti.