Among the various theories and beliefs about the origin of the universe, the Big Bang Theory is the most convincing from a scientific perspective. This theory proposes that about 13.8 billion years ago, the universe began as a hot, dense singularity that expanded and cooled over time, leading to the formation of matter, galaxies, stars, and planets. It is supported by strong empirical evidence such as:The observed expansion of the universe (Hubble's Law)The cosmic microwave background radiation, which is the residual heat from the early universeThe abundance of light elements like hydrogen and helium formed shortly after the Big BangAdditionally, the cosmic inflation theory explains how the universe expanded exponentially in the first fraction of a second, solving key problems like the uniform temperature across vast regions of space.On the other hand, some people find creationist beliefs convincing, which argue that a divine creator (God) intentionally created the universe. This view is supported by philosophical arguments like the Kalam Cosmological Argument, which states that everything that begins to exist has a cause, and since the universe began to exist, it must have a cause—often identified as God. Proponents also point to the fine-tuning of the universe as evidence of purposeful design.