Download or read book Living Aloft: Human Requirements for Extended Spaceflight written by Mary Connors and published by CreateSpace. This book was released on 2012-07-13 with total page 432 pages. Available in PDF, EPUB and Kindle. Book excerpt: Since the earliest days of spaceflight, substantial concern has been expressed regarding the physical needs of astronauts, including any biological damage that might result from exposure to radiation or from reduction in gravitational forces.