The brightest star Sirius is 8 light years from earth. (Assume that earth and Sirius are at rest relative to each other.)
How fast must a spaceship travel in order to reach Sirius in 6 years according to clocks on the spaceship?
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it is not possible to travel more than the speed of light because 1light years means distance travelled by light in a year
so the answer is - more than the speed of light
so the answer is - more than the speed of light
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The spaceship must travel faster than the speed of the light in order to reach Sirius in 6 years according to clocks on the spaceship which is not possible for now as technology has yet not developed an engine that can match or go faster than the speed of light.
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