Is the Big Bang Theory wrong?
The Big Bang theory, which explains the origin of our universe with a giant explosion, might not be the whole story. Some cosmologists are challenging the traditional view, proposing that our universe may have existed in some form before the Big Bang. These alternative theories suggest that the incredibly hot, dense state we imagine before the Big Bang might have been preceded by another cosmic epoch. This earlier epoch could have governed the laws of physics in a way that's entirely different from what we understand today. It's mind-bending to consider, but some scientists even propose a cyclic universe, where our Big Bang wasn't the first, and it won't be the last. In this model, the universe undergoes repeated cycles of expansion and contraction, with a Big Bang followed by an eventual collapse back in on itself, restarting the process all over again.