Question

On Earth, most years are 365 days long. On Saturn, a year is 10,740 days long. Why is a year on Saturn so much longer than a year on Earth?

Answer 1

I would say its because Saturn is so far away from the Sun and when it orbits the Sun its like 9.5 NU 

Answer 2

A year on Saturn is so much longer than a year on Earth because Earth is closer to the sun and it's orbit is smaller than Saturn's.