The Biggest Scientific Controversies and Debates that Shook the World of Knowledge

The Big Bang Theory

The Big Bang theory, which proposes that the universe began in a hot, dense state and has been expanding ever since, was initially met with skepticism. The steady state theory, which proposed that the universe has always existed in its current state, was a popular alternative. However, the discovery of the cosmic microwave background radiation in the 1960s provided strong evidence for the Big Bang theory.