For decades, scientists have relied on a popular idea referred to as cosmic inflation to explain how the universe began and why it looks the way it does today. This theory suggests the universe ...

The Big Bang theory is supported by the observed expansion of the universe and the cosmic microwave background radiation. The universe's early moments involved a hot, dense state with the formation of ...

The Thanksgiving Decoupling originally aired in November of 2013 as episode 9 of season 7, and fans will remember it for the major revelation regarding Penny. During a conversation regarding Sheldon ...