Light Year

Real World Example

Imagine you're trying to plan a road trip across a vast country, and you're wondering how far you can drive in a year without stopping. This is similar to how scientists use the idea of a light year to understand the immense distances in space. Just as your road trip measures distance by how far you can travel in a year, a light year measures how far light can travel in the same time frame—specifically 9.5 trillion kilometers—illustrating the vastness of the universe in a relatable way.