Space medicine has been an important component of the success of human spaceflight and will continue to play a critical role in the future ventures. To prepare for the day when astronauts will leave low Earth orbit for long-duration exploration missions, space medicine experts must develop a thorough understanding of the effects of microgravity on the human body, as well as ways of migrating these effects. To gain a complete understanding of the effects of space on the human body and to create the tools and technologies required for successful exploration, space medicine will become an...

'Astronauts For Hire' is a comprehensive and authoritative study of the increasing need for commercial astronauts. Erik Seedhouse provides unique insights into the burgeoning new field of commercial space operation and the individuals who will run these missions.
Section I begins by describing how Astronauts for Hire (A4H) was created in 2010 by Brian Shiro, a highly qualified NASA astronaut candidate, and a group of other astronaut candidates. Erik introduces A4H's vision for opening the space frontier to commercial astronauts and describes the tantalizing science opportunities offered...