Proxima centauri – We already know that our universe is quite big … euh very big. The closest star to the earth (except for our sun) is called proxima centauri and is at a distance of 4 light years. Quite far if you know that a light year is traveling a year with the speed of light (300.000 km/second). So that means that the distance is around km.

Our Sun is only traveling 8 light minutes from earth.

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