The space age was ushered in 55 years ago today (4 October 1957) with the launch of the satellite Sputnik-1. My favourite quote on Sputnik:
“Nobody back then was thinking about the magnitude of what was going on: everyone did his own job, living through its disappointments and joys.” -Oleg Ivanovsky, deputy designer for Sputnik
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 in a cradle forever”. Long before the beginning of the space era this Great Russian scientist derived a formula for space rockets’ overcoming the earth’s gravity. More.
Source: Roscosmos Facebook page.
Konstantin Tsiolkovsky (1857-1935), pioneer of astronautics. Derived the Tsiolkovsky rocket equation and made a significant contribution to the Soviet Space Program; in addition to his exploration of the earth sciences and biology.