What theory is associated with the concept of the universe expanding from a singular point?

The Big Bang Theory is the scientifically accepted explanation for the origin of the universe, proposing that it began as an extremely hot and dense singularity approximately 13.8 billion years ago. According to this theory, the universe has been expanding ever since this initial event. This expansion can be observed through the redshift of distant galaxies, which shows that galaxies are moving away from us, indicating that the universe continues to grow larger over time.

Key evidence supporting the Big Bang Theory includes the cosmic microwave background radiation, which is the afterglow of the initial explosion, and the abundance of light elements such as hydrogen and helium that we find in the universe. These observations align with predictions made by the theory, helping to solidify its acceptance in the scientific community.

In contrast, other theories like the Steady State Theory propose that the universe is in a constant state, with matter being created to maintain a uniform density, which does not support the idea of expansion from a singular point. Quantum Theory primarily deals with the behavior of particles at very small scales and does not address the large-scale structure of the universe. Relativity Theory, while fundamental to our understanding of gravity and the fabric of space-time, does not specifically assert that the universe originates from a singular