How far is a light year?

Explore the science behind this video: What is a light year and how is it used?

1:04 Space & time

Latest videos

All videos arrow

SKAO: The world’s largest radio observatory

3:20
Watch
Video: SKAO: The world’s largest radio observatory

What is a supernova?

2:09
Watch
Video: What is a supernova?

What are exoplanets?

2:26
Watch
Video: What are exoplanets?