"Loss of Signal presents the aeromedical lessons learned from the Columbia accident that will result in enhanced crew safety and survival on human space flight missions. As we embark on the development of new spacefaring vehicles through both government and commercial efforts, the NASA Johnson Space Center Human Health and Performance Directorate is continuing to make this information available to a wider audience engaged in the design and development of future space vehicles. Loss of Signal summarizes and consoliates the aeromedical impacts of the Columbia mishap process-- the response, recovery, identification, investigative studies, medial and legal forensic analysis, and future preparation that are needed to respond to spacecraft mishaps. The goal of this book is to provide an account of the aeromidical aspects of the Columbia accident and the investigation that followed, and to encourage aerospace medical specialists to continue to capture information, learn from it, and improve procedures and spacecraft designs for the safety of future crews"--Report documentation page.