17. Edwin Hubble
Read the Question.
Edwin Hubble made many contributions to astronomy, in your opinion, what was his most significant contribution?
Scan the Blurb.
In November 1924, Edwin Hubble, an American astronomer, concluded that the Andromeda nebula was actually a distant island galaxy outside of the Milky Way, where the Earth is located. Although the debate about the true nature of the Andromeda nebula had existed for some time, it was Hubble’s calculation using other astronomical data that ended the argument about the Andromeda nebula.
