Sigma 7: The Six Mercury Orbits of Walter M. Schirra, Jr. (Springer Praxis Books) by Colin Burgess
English | 9 Jun. 2016 | ISBN: 3319279823 | 316 Pages | PDF | 44.84 MB
Colin Burgess offers a comprehensive yet personal look at the 1962 orbital mission of Wally Schirra aboard the spacecraft Sigma 7, the first book about this popular pioneering astronaut which explores his entire life and accomplishments. This continues the Pioneers in Early Spaceflight series, the volumes of which form an excellent record of Project Mercury's pioneering early phase of the Space Age.