More than 500 participants attended the 12th European Conference on Spacecraft Structures, Materials and Environmental Testing, hosted at ESA’s technical centre at Noordwijk, the Netherlands, on 20–23 March 2012, with a total of 218 papers presented. A total of 218 papers in addition to , posters and several technical exhibitions were featured at the conference, which was co-organised by ESA’s Structures and Mechanisms Division (TEC-MS), the French space agency CNES and the German Aerospace Center DLR.