Cosmonautics Day - a special holiday for Russia. It is our country launched the first satellite into orbit for the first time sent a man - Yuri Gagarin, Soviet cosmonaut Alexei Leonov made the first spacewalk. Over the past half-century Russia is still the leader in the ranking of the world's space records.
Russian space technologies in high demand abroad. In particular, since 2011, after the United States turned the program Space Shuttle, Russia remains the only power capable to carry out manned space flights.
In ensuring the smooth functioning of the International Space Station (ISS), the role of Russian cosmonauts difficult to overestimate. An equally important aspect of space exploration - continuous work of scientists studying it.
And on the orbital, and on the largest ground-based telescopes mounted mirror in Russia. Space optics to make world-class "Lytkarino Optical Glass Factory" is part of the holding "Schwabe" State Corporation "Russian Technologies" (Rostec).