jan 1, 1927 - Georges Lemaître
Description:
In 1927, the Belgian Catholic priest Georges Lemaître proposed an expanding model for the universe to explain the observed redshifts of spiral nebulae, and calculated the Hubble law. He based his theory on the work of Einstein and De Sitter, and independently derived Friedmann's equations for an expanding universe. (He used the hubble telescope)Added to timeline:
Date:
jan 1, 1927
Now
~ 97 years ago
