Question

how long will it take a person on the earth to see light from a star that is 500 light years away?
instantly
500 minutes
500 years
one year

Explanation:

A light-year is defined as the distance that light travels in one Earth year. So light from a star 500 light-years away will take 500 years to reach Earth, meaning a person on Earth will see that light 500 years after it leaves the star.

Answer:

500 years