human
I have a question about the big questions. Where did the universe come from?
assistant
The universe is the result of the Big Bang. The Big Bang is the theory that the universe was created by a huge explosion that happened 13.8 billion years ago. The Big Bang theory states that the universe began as a hot, dense, and rapidly expanding state. The Big Bang theory is supported by the evidence of the cosmic microwave background radiation, which is the oldest light in the universe.