Rainer "Rai" Weiss (; German: [vaɪs]; born September 29, 1932) is an American physicist, known for his contributions in gravitational physics and astrophysics. Iye ari purofesa wefizikisi emeritus paMIT uye purofesa anobatsira paLSU. Iye anonyanya kuzivikanwa nekugadzira laser interferometric nzira iyo ndiyo inoshanda yeLIGO. Akanga ari Sachigaro weCOBE Science Working Group.Iye inhengo yeFermilab Holometer, iyo inoshandisa 40m laser interferometer kuyera zvivakwa zvemuchadenga nenguva pachiyero che quantum uye inopa Planck-precision bvunzo dze quantum holographic fluctuation. Muna 2017, Weiss akapihwa mubairo weNobel muPhysics, pamwe naKip Thorne naBarry Barish, "nekuda kwekubatsira kwakakosha kuLIGO detector uye kucherechedzwa kwemafungu egiravhiti".
MIT uye purofesa anobatsira paLSU