Reflection – Clip

The video explains how scientists measure the distance from Earth to the moon using mirrors placed on the lunar surface. By firing lasers at these mirrors and measuring the time it takes for the light to return, they can calculate the exact distance. This method provides precise measurements of the moon's distance at any given time.

Why is it important to know the distance of the moon from Earth?

What can be inferred about the distance to the moon at different times?