Getting to Mars is only part of the problem of putting humans on the Red Planet. We're already pretty good at that part, with plenty of robots roaming around up there right now. The tough part is putting a permanent presence in place so that it actually makes sense to go there, and Elon Musk's SpaceX is making progress towards overcoming that difficulty.
At the International Astronautical Congress, SpaceX founder and CEO Elon Musk is expected to offer more detail his “Mars Colonial Transporter," and his plans to build a city on Mars in the next decade.
Elon Musk has just posted photos of SpaceX's new Raptor engine undergoing its first successful test fire.
Musk tweeted the rocket's inaugural flight ahead of a speech in which he will outline his plan to colonise the Red Planet.