GabrielaS62
GabrielaS62 GabrielaS62
  • 02-11-2020
  • Biology
contestada

Describe how all the stars and planets started after the big bang.

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jonasunderwood
jonasunderwood jonasunderwood
  • 02-11-2020

Answer:

The Universe becomes transparent to light (photons stop interacting with free electrons) resulting in the formation of the Cosmic Background Radiation. After 1 billion years, the temperature is 20 K and galaxies and stars have begun to form via gravitational contraction of over-densities in the initial Universe.

Explanation:

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