Big Bang

The Big Bang theory is the prevailing cosmological model for the universe from the earliest known periods through its subsequent large-scale evolution. The model describes how the universe expanded from a very high density and high temperature state, and offers a comprehensive explanation for a broad range of phenomena, including the abundance of light elements, the cosmic microwave background, large scale structure and Hubble's Law. 

Contents

• The Beginning of Everything The Big Bang
• Overview
• Singularity
• Inflation and baryogenesis
• Cooling
• Structure formation
• Cosmic acceleration
• Features of the model
• Expansion of space
• Horizons
• Etymology
• Development
• Observational evidence
• Hubbles law and the expansion of space
• Cosmic microwave background radiation
• Abundance of primordial elements
• Galactic evolution and distribution
• Primordial gas clouds
• Other lines of evidence
• Future observations
• Problems and related issues in physics
• Baryon asymmetry