Here's why:
* Light-year: The distance light travels in one year. This is a huge distance!
* Saturn's Distance: Saturn orbits the Sun at an average distance of about 1.43 billion kilometers (886 million miles). This distance is best expressed in astronomical units (AU), where 1 AU is the average distance between the Earth and the Sun. Saturn is about 9.5 AU from the Sun.
To put it in perspective, light takes about 8 minutes to reach Earth from the Sun. It takes light about 1 hour and 20 minutes to travel from the Sun to Saturn.