https://en.wikipedia.org/wiki/Fritz_Zwicky
In 1933, Zwicky was the first to use the virial theorem to postulate the existence of unseen dark matter, describing it as "dunkle Materie".[3][4]
dunkle Materie
https://en.wikipedia.org/wiki/Fritz_Zwicky
In 1933, Zwicky was the first to use the virial theorem to postulate the existence of unseen dark matter, describing it as "dunkle Materie".[3][4]
dunkle Materie
