In short the universe is a VAST place. Light is travelling at 671 million miles per hour (975 million km per hour) yet it takes 4.4 years for that light to reach us. Simply because astronomical distances are so great that the km is too small of a unit to represent those distances in a practical way.
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Answer:
In short the universe is a VAST place. Light is travelling at 671 million miles per hour (975 million km per hour) yet it takes 4.4 years for that light to reach us. Simply because astronomical distances are so great that the km is too small of a unit to represent those distances in a practical way.
Explanation: