I'm not picking up any cities or technology. Massive life-form readings, though. There's something alive down there.
10 seconds sound clip from the Star Wars: Episode V - The Empire Strikes Back movie soundboard.
You can hear this line at 00:40:49 in the Blu-ray version of the movie.
Quote context
[...]
- Excuse me, ma'am, but where are we going?
- I hope you know what you're doing. Yeah. Me, too.
- No, I'm not gonna change my mind about this.
- Yes. I'm sure it's perfectly safe for droids.
(Luke Skywalker's ship flying)
- I know! I know! All the scopes are dead. I can't see a thing.
- Just hang on. I'm gonna start the landing cycle.
[...]