Who was died during the space flight?

Due to failure of parachute, Russian astronaut Col. Vladimir died during space flight on April 23, 1965. He was proved to be an unfortunate and died during his space flight. Outer space (often simply called space) is the void that exists beyond any celestial body including the Earth. It is not completely empty but contains a low density of particles, predominantly hydrogen plasma, as well as electromagnetic radiation, magnetic fields and neutrinos. Theoretically, it also contains dark matter and dark energy.