Planetary Science
Planet Jupiter
The Moon

If the sun suddenly ceased to shine how long would it take Earth to become dark?



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The light from the sun takes about 8.5 minutes to reach Earth. If the sun were suddenly extinguished, we wouldn't know about it for 8 and half minutes. So, I guess you could say we would be "in the dark" for 8 and half minutes before we were actually in the dark.