If spacecraft is moving at the speed of light then why the age of the person in spacecraft will not change ?

If spacecraft is moving at the speed of light then why the age of the person in spacecraft will not change ?
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1 Answer

Answer :

Because light has no time. Time is fixed near the light. So if the spacecraft travels at the speed of light, the person inside will also travel at the speed of light. Time will stop for the man too. To know more about this you need to know "General Theory of Relativity" and "Special Theory of Relativity". Note: Something with mass can never travel at the speed of light.
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