the icpmse-6 meeting continued the discussions started in 1992 when this conference series was started. the proceedings of icpmse-6 conference contain the latest developments in the area of the effects of the space environment on materials and structures and the ways to prevent and/or reduce them. for the first time, information on environment factors affecting the behavior of materials in geo and meo orbits was included in the topics. the main mandate of the meeting, as in the past years was to: - promote the dissemination of experimental data and experience among research organizations, and scientists gathered in ground and flight experiments; - learn about the latest advances in the field of materials and structures protection in space environment and to provide a basis for interaction and utilization of ideas; - review the latest research and development in topics such as: effects of space environment on materials and structures, predictive models for interaction of materials with space environment factors, and alternative ways for protection from space environment.