Ultimate fate of the universe out a theory that has since come to be called the Big Bang theory of the origin of the universe. In 1948, Fred Hoyle set out his opposing Steady State theory in which the universe continually expanded but remained statistically unchanged as new matter is constantly created. These two theories were active contenders until the 1965 discovery, by Arno Penzias and Robert Wilson, of the cosmic microwave background radiation, a fact that is a straightforward prediction of the Big Bang theory, and one that the original Steady State theory could not account for. As a result, the Big Bang theory
The Big Bang Theory (season 3) still annoy him). Wil Wheaton begins appearing as Sheldon's arch-enemy. Howard begins to date Bernadette Rostenkowski. At the end of the season, Sheldon meets Amy Farrah Fowler. <onlyinclude> </onlyinclude> The third season received favorable reviews. Maureen Ryan of "Chicago Tribune" wrote that ""Big Bang Theory," which is in its third season, is doing many things very right", Alan Sepinwall of "The Star-Ledger" wrote "the Penny/Sheldon interaction was gold, as always", and Ken Tucker of "Entertainment Weekly", who wrote that "what lifts "The Big Bang Theory" into frequent excellence is its one constant from the start: the brilliantly nuanced performance of