KillGorack / Physics 2010 / The distance to the Andromeda Galaxy is estimated at about 2*10^6 light years. A light year is the distance traveled by light in one year; if the speed of light is 3*10^8 m/s, about how far is it from our galaxy to Andromeda? (1 year = 3.15*10^7 s)

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Question The distance to the Andromeda Galaxy is estimated at about 210^6 light years. A light year is the distance traveled by light in one year; if the speed of light is 310^8 m/s, about how far is it from our galaxy to Andromeda? (1 year = 3.15*10^7 s)
Answer 2*10^22 m

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