Final answer:
The universe was created through the Big Bang, a rapid expansion of a singularity. This theory is a cosmological explanation for the origin of the universe.
Step-by-step explanation:
The Big Bang theory is the prevailing cosmological explanation for the origin of the universe. According to this theory, the universe began as a singularity, a point of infinite density and temperature, which expanded rapidly in a process called the Big Bang. The expansion of the universe continues to this day.
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