Age of the Universe is the time that has passed away, since the Big Bang in Human years. The current measure of the Age of Universe is 13.82 billion years. In seconds, it can be expressed as 4.366[54] e^{17} seconds.

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Unit of Universe Age is 'Ga' and the symbol is t_{0} .Measuring the expansion rate of the universe is used to find its age by extrapolating backwards in time.

Unit of Universe Age is 'Ga' and the symbol is t_{0} .Measuring the expansion rate of the universe is used to find its age by extrapolating backwards in time.