April 12, 2011 was the 50th Anniversary of Yuri Gagarin's pioneering journey into space. To commemorate this momentous achievement, Springer-Praxis has produced a mini-series of books that reveals how
April 12, 2011 is the 50th anniversary of Yuri Gagarin’s pioneering journey into space. To commemorate this momentous achievement, Springer-Praxis is producing a mini series of books that reveals how
