Spacetime Mysteries: The Past and The Outside

What would be the truth value of the statement, "Time has no beginning?" What existed a minute before the beginning of time? Are the past and the future alike? We know about fundamental particles near us. But beyond our universe, quadrillions of light years beyond the farthest heavenly body that exists, where there is neither matter nor light how far does space extend? Can infinity be covered? Can things which actually exist have an uncertain number or quantity? Why does time appear to flow...