The Big Bang Theory
The Big Bang Theory is a scientific theory that explains the origin and evolution of the universe. It proposes that the universe began as a hot, dense, and infinitely small point called a singularity and has been expanding and cooling down over time. Here are the key points of the Big Bang Theory: 1. Singularity: The universe originated from a singularity, which is a point of infinite density and temperature. The singularity is thought to have contained all the matter and energy that exist in the universe today. 2. Expansion: Around 13.8 billion years ago, the universe began expanding rapidly in an event called the Big Bang. This expansion is still ongoing today. It is important to note that the Big Bang was not an explosion in space but rather an expansion of space itself. 3. Cosmic Microwave Background Radiation (CMB): As the universe expanded, it cooled down. About 380,000 years after the Big Bang, the temperature dropped enough for atoms to form. At this point, photons were able to...