Rainer Weiss

American physicist (1932–2025)

Rainer Weiss was a renowned German-American physicist, born in 1932 and passed away in 2025. His academic and professional career was marked by significant contributions to the fields of gravitational physics and astrophysics. Weiss held distinguished positions as a professor of physics at the Massachusetts Institute of Technology, as well as an adjunct professor at Louisiana State University, demonstrating his expertise and commitment to education.

Weiss's most notable achievement lies in his invention of the laser interferometric technique, which serves as the fundamental operational principle of the Laser Interferometer Gravitational-Wave Observatory (LIGO). Additionally, he played a key role as the Chair of the COBE Science Working Group, further solidifying his influence in the scientific community. Through his work, Weiss left a lasting impact on the field of physics, paving the way for future breakthroughs in gravitational physics and astrophysics.