According to Big Bang cosmology, what is the estimated age of the universe?

The estimated age of the universe according to Big Bang cosmology is approximately 13.7 billion years. This figure is based on several lines of evidence, including the observed expansion of the universe, cosmic microwave background radiation, and the abundance of light elements. Measurements from the Hubble Space Telescope and observations of distant supernovae have consistently supported this estimation, leading to the conclusion that the universe began with a significant expansion event around that time frame.

This age reflects our understanding of how the universe has evolved since its inception, aligning with theories regarding the formation of galaxies and the structure of cosmic background radiation. Scientific studies and models continue to refine this estimate, but 13.7 billion years is the widely accepted figure in current cosmological research.