Cesar reads about the big bang theory, which explains that the universe expanded as a result of an explosion. he wants to evaluate weather his theory is a good one. What statement is a characteristic of a good theory?
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Answer:
The Big Bang theory is the prevailing cosmological model for the observable universe[1][2][3] from the earliest known periods through its subsequent large-scale evolution.[4][5][6] The model describes how the universe expanded from a very high-density and high-temperature state,[7][8] and offers a comprehensive explanation for a broad range of phenomena, including the abundance of light elements, the cosmic microwave background (CMB), large-scale structure and Hubble's law (the farther away galaxies are, the faster they are moving away from Earth).[9] If the observed conditions are extrapolated backwards in time using the known laws of physics, the prediction is that just before a period of very high density there was a singularity which is typically associated with the Big Bang. Current knowledge is insufficient to determine if the singularity was primordial.