Physics Lesson: Space – What is a Light Year? | TWIG

When we look at the stars in the night sky, we are actually looking back in time! Want to know what a light year is, how it’s used, and why we use light years instead of normal distance measurements? Just watch this video.

This video is designed to be used alongside other teaching material to create an immersive and exciting science lesson. To access learning materials, and other videos like this one, visit and join hundreds of thousands of teachers in applying Twig’s revolutionary approach to science learning.

Don’t forget to subscribe to the channel for more science videos like this—with new topical science videos every Thursday!

Find us elsewhere:
Official site:


%d bloggers like this: