This viewgraph presents an overview using pictures some of the history of human exploration of the new frontiers of Earth and then examines some of the challenges to human exploration of space. Particular attention is given to the environmental factors and to the social and human factors that effect humans in space environments.
NASA Technical Reports Server (NTRS) Collection.
Document ID: 20070023305. 21st Century Explorers Scotland; 9-24 Jun. 2007; Scotland; United Kingdom.