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From our current understanding of how the Big Bang might have progressed, taking into account theories about inflation, Grand Unification, etc, we can put together an approximate timeline as follows: Planck Epoch (or Planck Era), from zero to approximately 10-43 seconds (1 Planck Time):
- Superstrings and Quantum Gravity
To fully understand questions like where the universe came...
- Accelerating Universe and Dark Energy
Like dark matter, cosmic inflation (even if it is not...
- Cosmic Background Radiation
The Ukrainian-American physicist George Gamow was the first...
- The Expanding Universe and Hubble's Law
This expansion, usually referred to as the "metric...
- Dark Matter
The simple Big Bang theory is, however, not without its...
- Cosmic Inflation
But if, as the evidence suggests, the last time the cosmic...
- Superstrings and Quantum Gravity
2 lut 2022 · Here is a breakdown of the Big Bang to now in 10 easy-to-understand steps. Step 1: How it all started An illustration of the timeline of the universe following the big bang.
Overview. Chronology in five stages. Diagram of evolution of the (observable part) of the universe from the Big Bang (left), the CMB -reference afterglow, to the present. For the purposes of this summary, it is convenient to divide the chronology of the universe since it originated, into five parts.
Learning Objectives. By the end of this section, you will be able to: Describe the evolution of the early universe in terms of the four fundamental forces. Use the concept of gravitational lensing to explain astronomical phenomena. Provide evidence of the Big Bang in terms of cosmic background radiation.
Diagram of Evolution of the universe from the Big Bang (left) to the present. The timeline of the early universe outlines the formation and subsequent evolution of the Universe from the Big Bang (13.799 ± 0.021 billion years ago) [1] to the present day.
The most basic forces in nature become distinct: first gravity, then the strong force, which holds nuclei of atoms together, followed by the weak and electromagnetic forces. By the first second, the universe is made up of fundamental particles and energy: quarks, electrons, photons, neutrinos and less familiar types.
The standard cosmology is the most reliably elucidated epoch, or era, spanning the time between about one hundredth of a second after the Big Bang through to the present day. The standard model for the evolution of the Universe in this epoch has faced many stringent observational tests.
