Question

what is the big bang theory? group of answer choices the idea that the galaxy formed from the supernova explosion of a massive star the idea that the universe as we see it formed when two massive galaxies collided together the idea that all matter and energy in the universe began in an unimaginably dense state, and then space itself began expanding

Answer 1

Big Bang is the theory of cosmology that explains the origin of the universe through a primeval explosion, the expansion of space, and the formation of galaxies.

Step-by-step explanation:

Big Bang is the theory of cosmology that states that the universe began with a primeval explosion, where all matter and energy in the universe originated from an unimaginably dense state and space itself started expanding. This theory explains the observed expansion of the universe, the cosmic microwave background radiation, and the formation of galaxies.