And on that day, man will finally know the answers, the day we first land on Mars.
12 seconds sound clip from the X Minus 1 - Mars is Heaven by Ray Bradbury classic radio dramaseries.
You can hear this line at 00:01:56 in the radio play.
Quote context
[...]
- Tonight's story, Mars is Heaven.
- Intelligent life in some strange form that we can only imagine.
- Will we be welcomed with open arms? Or will the Martians treat us as invaders?
- And on that day, man will finally know the answers, the day we first land on Mars.
(COMSTAT BEEPING and BOSUN's WHISTLE)
- There it is. We've intersected the course vector, sir.
- All right, Mr. Lustig. Over to manual control.
- Masters, sound general quarters.
[...]