Meaning of the word "light years away" in English

What does "light years away" mean in English? Explore the meaning, pronunciation, and specific usage of this word with Lingoland.

light years away

US /laɪt jɪrz əˈweɪ/
UK /laɪt jɪərz əˈweɪ/
"light years away" picture

Idiom

a very great distance or a very long time from something

Example:
Their technology is light years away from ours.
We are still light years away from finding a cure for this disease.