On July 17, 1995, the Global Positioning System (GPS), the world's first space-based satellite navigation system is declared operational. GPS provides location and time information in all weather conditions, anywhere on or near the Earth where there is an unobstructed line of sight to four or more GPS satellites.
On 12 April 1961, aboard the Vostok 3KA-3 (Vostok 1), Soviet pilot Yuri Gagarin became both the first human to travel into space, and also the first to orbit the earth.
L. Nigay, and J. Coutaz. Proceedings of the INTERACT '93 and CHI '93 Conference on Human Factors in Computing Systems, page 172--178. New York, NY, USA, ACM, (1993)
D. Melrose. Instabilities in Space and Laboratory Plasmas, by D.~B.~Melrose, pp.~288.~ISBN 0521305411.~Cambridge, UK: Cambridge University Press, (August 1986)
.. Antonio Jatta, Sara Rossi. Il Politecnico Dedalo, Bari, (January 1985)Questa pubblicazione raccoglie i primi materiali di una ricerca concretizzata nel convegno internazionale: "Pianificazione urbana e territoriale nei paesi in via di sviluppo: l'Africa", Reggio Calabria, novembre 1982 ; promossa dalla facolta di Architettura, Universita di Reggio Calabria..