Space-quest, experiments with quantum entanglement in space R. Ursin, T. Jennewein, J. Kofler, J. M. Perdigues, L. Cacciapuoti, C. J. de Matos, M. Aspelmeyer, A. Valencia, T. Scheidl, A. Acin et al. (28 more) Europhysics News, 40 3 (2009) 26-29 Published online: 04 June 2009 DOI: 10.1051/epn/2009503