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This is CBS Eye on the World.

Here's John Batchelor.

Reentry, the new book by Eric Berger,

Senior Space Rider for Ars Technica,

SpaceX, Elon Musk,

and the reusable rockets that launched a second space age.

Eric, congratulations, and we go immediately to Guadalajara, Mexico.

It is September 2016.

Elon Musk, a well-to-do success for Tesla, is speaking on his vision for SpaceX.

It is surprising in that it begins to sound like the science fiction books that I bought in drugstores in the 1950s and 60s.

It's about Mars.

What does Mr. Musk's tell the room and how do they react to the idea that he's building a space company to leave the Earth?

Good evening to you.

Good evening, John. It's a remarkable speech.

It does feel very much like science fiction. He's showing pictures of these spaceships, you know,

with dozens of people on their way to Mars, symphonies in space, this grandiose architecture

with a fully reusable massive rocket.

And it was remarkable because, you know, just a few weeks earlier,

...