The Union of Concerned Scientists (UCS) was founded in 1969 by scientists at the Massachusetts Institute of Technology in the United States. The motivation for establishing this non-profit association of scientists arose from discontent among students and academics in response to the perceived misuse of research programmes by the US government for the development of military technologies. The UCS has, ever since, been advocating the civil alternative: Research dedicated to solving the problems of humanity and the environment. Among its core concerns are nuclear disarmament and the outlawing of space weapons. Its publications include the “UCS Satellite Database”, which provides an annual update on satellites, presenting key data such as names, users and operators, expected operating life, mission launch dates, activities and purposes.