This conversion is typically used in scientific contexts, like astronomy, to express incredibly vast distances in understandable cosmic units, even if starting with a small measurement.

While 500,000,000 inches is a significant length on Earth (over 7,900 miles), it is an infinitesimally small distance when compared to the scale of the universe, hence the result of 0.0000 light-years.

A light-year is a unit of astronomical distance, representing the distance that light travels in a vacuum in one Julian year.

There are approximately 3.73 x 10^20 inches in one light-year, highlighting the immense difference in scale between the two units.