When the first space rocket lands on Mars, what will we find? Only the ruins of a dead and deserted planet, or will there be life?

13 seconds sound clip from the X Minus 1 - Mars is Heaven by Ray Bradbury classic radio dramaseries.

You can hear this line at 00:01:13 in the radio play.

Quote context

[...]

- From the far horizons of the unknown come transcribed tales of new dimensions in time and space.

- These are stories of the future.

- Adventures in which you'll live, in a million could-be years, on a thousand may-be worlds.

- The National Broadcasting Company presents... X-Minus-One.

- Tonight's story, Mars is Heaven.

- When the first space rocket lands on Mars, what will we find? Only the ruins of a dead and deserted planet, or will there be life?

- 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?

- Only one thing is certain. Some day a giant metal ship will take off from earth to travel through the black velocities, the silent gulfs of space, to descend at last into the darkness of the upper Martian atmospheres.

- And on that day, man will finally know the answers, the day we first land on Mars.

[...]