Αποτελέσματα Αναζήτησης
Big Bang Nucleosynthesis leads to some of the most successful predictions derived from the big bang models: The physics of the expanding universe at cosmic times of 1 to 3 minutes is well established, and rather simple.
21 Οκτ 2024 · Big-bang model, widely held theory of the evolution of the universe. Its essential feature is the emergence of the universe from a state of extremely high temperature and density—the so-called big bang that occurred 13.8 billion years ago.
29 Ιουλ 2023 · Our understanding of the principles that underlie how the universe works on the large scale and our observations of how the objects in the universe change with time allow us to model the evolution of the entire cosmos these days.
Big Bang theory explains how the Universe was formed and why it is still expanding. Space exploration uses a variety of manned spacecraft, space probes and telescopes. Part of Physics...
The best and most widely accepted current model for how our Universe changes over time is usually referred to as the standard Big Bang theory, or model. The Big Bang model is based on general relativity and other models from physics and is supported by much observational evidence.
25 Ιουλ 2015 · If we take a small region of the Universe, such as the neighbourhood of the Sun, it does change over time as individual stars burn up their fuel and die, eventually becoming objects such as black dwarfs, neutrons stars and black holes.
To describe just how space stretches, we say the cosmic expansion causes the universe to undergo a uniform change in scale over time. By scale we mean, for example, the distance between two clusters of galaxies.
