Einstein himself lost little time in abandoning his static cosmology at that point. ... In each case, he also abandoned the cosmological constant, stating that the term was both unsatisfactory (it gave an unstable solution) and redundant (relativity could describe expanding models of the universe without the term).

Did Einstein think the universe was static?

Until 1931, physicist Albert Einstein believed that the universe was static. ... In 1917 Einstein applied his theory of general relativity in the universe, and suggested a model of a homogenous, static, spatially curved universe.

Did Einstein believe the universe is infinite?

Summary: Albert Einstein accepted the modern cosmological view that the universe is expanding long after many of his contemporaries. Until 1931, physicist Albert Einstein believed that the universe was static.