Research topic: space travel

voy·age / ˈvoi-ij / • n. a long journey involving travel by sea or in space: a six-year voyage to Jupiter | fig. writing a biography is a voyage of discovery . • v. [ intr. ] go on a long journey, typically by sea or in space: he has voyaged through places ...

Konstantin Eduardovich Tsiolkovsky , 1857-1935, Russian inventor and rocket expert. He lost his hearing in childhood, and, as he could not attend the usual schools, he educated himself. His most important work was concerned with the possibility of rocket flight into outer space. Tsiolkovsky's The ...