Friedmann, a Russian mathematician, realized that this was an unstable fix, like balancing a pencil on its point, and proposed an expanding universe model, now called the Big Bang theory. When Hubble's study of nearby galaxies showed that the universe was in fact expanding , Einstein regretted modifying his elegant theory and viewed the
The Big Bang Theory had several problems because it did not predict what has actually occurred in the Universe, and the Cosmic Inflation Theory was developed by Alan Guth to deal with these three
ODWel6U. 316 210 268 206 220 301 156 166 39
big bang theory facts nasa
