Les limites de l’univers observable : jusqu’où peut-on voir
IN BRIEF Observable universe : The visible part of the universe, limited by the cosmic horizon. Size of the universe : Estimated to be at least 96 billion light-years. Cosmic horizon : Boundary beyond which the universe remains opaque. Cosmic microwave background : Light from the Big Bang visible at about 13.8 billion light-years. Expansion … Read more