- Where did they come from, then?
- Another galaxy! Millions of miles outside of our solar system. That's all I know! You figure out where they came from.

12 seconds sound clip from the Dimension X - The Outer Limit by Graham Doar classic radio play.

You can hear this line at 00:13:27 in the radio play.

Quote context

[...]

- All right, Mr. Winston, suppose you continue your story.

- Yes, let's have it, Steve. You woke up inside this ship?

- Yes. And uh, the place was jammed with machinery - dials, blinkers - I couldn't recognize anything.

- And you were surrounded by these - men from Mars?

- I didn't say anything about men from Mars. I didn't even say they were men. I couldn't see them clearly... they were just there.

- Where did they come from, then?

- Another galaxy! Millions of miles outside of our solar system. That's all I know! You figure out where they came from.

- And they came all that distance to find the Earth?

- Yes.

- They tell you that?

- Yes.

- You mean they spoke English to you?

- No, no, they didn't.

- That's funny, I hadn't thought - they didn't really speak to me at all, they just planted the thoughts in my mind.

- You mean thought transference? Telepathy?

- Yes, that's right.

[...]