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QUESTION
How to calculate the light-years and convert to miles
1. If a galaxy is 1,000 Mpc away, how fast is it recedingfrom us?
2. The Milky Way has a radius of approximately 100,000light years. How many miles isthat? How long would it take you totravel across our galaxy if you were traveling at 50% the speed of light(be sure to show your work for full credit)?
