IN BRIEF Primordial nucleosynthesis: Formation of the first atoms after the Big Bang. Timing: Approximately 380,000 years after the Big Bang. Elements formed: Mainly hydrogen and helium. First molecule: The ion HeH+, possibly the first molecule. Conditions: Initial temperatures around 10^9 K. Electrons and atoms: Electrons combine with nuclei to form atoms. In the vastness … Read more
IN BRIEF Expansion of the Universe: phenomenon of galaxies moving away from each other. Observation by Edwin Hubble in 1929 on distance and redshift. Dynamic spaces: influence of gravity on space-time. Speed of expansion and its impact on cosmology. Origin of the Universe: about 13.8 billion years ago. Big Bang Theory and its implications for … Read more
IN BRIEF Big Bang: Cosmological model on the origin of the Universe. Describes the evolution of the Universe from a dense and homogeneous state. Observational evidence, such as the cosmic microwave background. Explained by the abundance of primordial helium. Diverse data sources corroborate the theory. Scientific consensus on the birth of the Universe from the … Read more
IN BRIEF Big Bang: explosive event marking the birth of the Universe Occurred about 13.7 billion years ago Emergence of a dense and hot Universe The Big Bang theory supported by contemporary observations Universe continuously expanding since its creation Questions about the origin: what happened before? No defined time before the Big Bang Exploration of … Read more