Elon Musk’s Plan: Get Humans to Mars, and Beyond - The New York Times

Behold the Interplanetary Transport System

"“What you saw there is very close to what we’ll actually build,” Mr. Musk said, referring to the rockets and spacecraft in the video.

Mr. Musk estimated it would cost $10 billion to develop the rocket, and he said the first passengers to Mars could take off as soon as 2024 if the plans went off without a hitch. For now, SpaceX is financing development costs of a few tens of millions of dollars a year, but eventually the company would look to some kind of public-private partnership.

Each of the SpaceX vehicles would take 100 passengers on the journey to Mars, with trips planned every 26 months, when Earth and Mars pass close to each other. Tickets per person might cost $500,000 at first, and drop to about a third of that later on, Mr. Musk said."

Elon Musk’s Plan: Get Humans to Mars, and Beyond - The New York Times