Proxima Centauri is 4.3 light years from Earth. How many kilometers does its light travel to reach Earth if light travels at the rate of 300 000 km per second?
Proxima Centauri, at this rate, it would take over 73,000 years to arrive. If we could travel at the speed of light, an impossibility due to Special Relativity, it would still take 4.22 years to arrive.
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Explanation:
Proxima Centauri, at this rate, it would take over 73,000 years to arrive. If we could travel at the speed of light, an impossibility due to Special Relativity, it would still take 4.22 years to arrive.