This episode explores theories in Physical Cosmology and how Humankind has represented the universe since before the emergence of modern science, as well as alternative theories that were later abandoned:

·       The Ancient Greek and Medieval Theory of Spheres.

·       Heliocentric models of the 16th and 17th centuries, such as the one proposed by Copernicus.

·       The Steady-State Universe Theory of the 19th and 20th centuries.

·       The Big Bang Theory, which is the standard model describing the history and expansion of the universe.

·       Alternative hypotheses that were later abandoned, and the reasons why, such as Tired Light or Plasma Cosmology.

Welcome to Lights Out Library

Join me for a sleepy adventure tonight. Sit back, relax, and fall asleep to documentary-style bedtime stories read in a calming ASMR voice. Learn something new while you enjoy a restful night of sleep.

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