Meanwhile, in 1914, astronomer Harlow Shapley began his career at Mount Wilson Observatory near Los Angeles. Shapley's interest was in the study of the Milky Way, and he began to use Cepheid ...

Photo: Andromeda nebula plate with Hubble's handwritten circle around the variable star he discovered In 1919 American astronomer Edwin Hubble began work at the Mount Wilson Observatory in ...

He was bored with law and decided to go back to his studies in astronomy. In 1919 he began to work at Mt. Wilson Observatory in California, where he would work for the rest of his life.