Astronomy

• The Big Bang Theory is the prevailing cosmological model that explains the origin of the universe.
• It suggests that the universe began as an extremely hot and dense singularity around 13.8 billion years ago.
• Nucleosynthesis is the process by which elements are formed through nuclear reactions in stars and other cosmic environments.
• Primordial Nucleosynthesis occurred during the first few minutes after the Big Bang, creating light elements like hydrogen, helium, and small traces of other elements.
• Stellar nucleosynthesis, happening within stars, produces heavier elements through fusion reactions during their life cycles.
• Supernova explosions also contribute to nucleosynthesis, dispersing these elements into space.
• Cosmology is the scientific study of the large scale properties and evolution of the universe as a whole. It explores the origin, structure, evolution and eventual fate of the cosmos.
• Dark Matter seems to outweigh visible matter roughly six to one, making up about 27% of the universe.
• Georges Lemaître describes how the universe expanded from an initial state of high density and temperature.
• The Big Bang was the moment 13.8 billion years ago when the universe began as a tiny, dense, fireball that exploded.