Ligo Scientific Collaboration appointed an American physicist as it's first spokesperson, who was a professor of physics at what university?
LIGO Scientific Collaboration: The LIGO Scientific Collaboration (LSC) is a scientific collaboration of international physics institutes and research groups dedicated to the search for gravitational waves. LIGO Scientific Collaboration:  Barish appointed Rainer Weiss as the first spokesperson. Rainer Weiss:  He is a professor of physics emeritus at MIT.
MIT