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QUESTION
If the speed of light is 186,000 mi/sec and the light from a distant galaxy takes 1.5 x 10^3 years to reach earth, how far from the earth in kms is
If the speed of light is 186,000 mi/sec and the light from a distant galaxy takes 1.5 x 10^3 years to reach earth, how far from the earth in kms is the galaxy?
