**email at: admin@planetpedia.in**

What How Why

**What is a Light Year?**

The unit of measurement used to calculate distances in space is called Light Year. It is the distance which light travels in one year.
** 1 Light-Year = 9460 billion km.** (approx)

What How Why

The unit of measurement used to calculate distances in space is called Light Year. It is the distance which light travels in one year.
** 1 Light-Year = 9460 billion km.** (approx)