itsfullofstars: 155 years ago, on September 17, Konstantin Tsiolkovsky, one of the founding fathers of rocketry and astronautics, was born in the Russian province. One of his famous sayings goes: “Earth is the cradle of humanity, but one cannot live

itsfullofstars: 155 years ago, on September 17, Konstantin Tsiolkovsky, one of the founding fathers of rocketry and astronautics, was born in the Russian province. One of his famous sayings goes: “Earth is the cradle of humanity, but one cannot live

itsfullofstars: 155 years ago, on September 17, Konstantin Tsiolkovsky, one of the