Probably after Mars Humans might wander off to Titan to set up their civilisation. And the lady here got a point. The atmpsphere of Titan is thick and prevent the radiations while in Mars we might have

Here's Elon Musk's vision of making humans multiplanet species and colonizing Mars as of now but obviosly he's not going to stop there. Traveling humans all the way to mars, he makes it sound like going

The concept is very elaborately explained and with different ways of achiving it. If Mars can be terraformed no mattter how many years or decades or centuries later, it'll be a great achievemnt by human

So finally NASA and SpaceX might be working together on SpaceX Mars mission. However, the success of SpaceX 2018 Mars mission will be determental for the future NASA-SpaceX collaboration for Mission Mars.

Elon Musk has goals of reaching the red planet with reusable rocketry. In this animated video SpaceX uses a two stage rocket and a spaceship carrying humans that can land on mars.

Here's a short documentary from NatGeo on how Living on Mars could be possible within a century. Sounds so convincing after watching this small documentary, I wish I could live that long so see the formation

Here's Nasa's vision for Mars in upcoming years. Nasa's three phase plan to place humans on Mars. Apart from NASA the different countries and SpaceX trying to achieve the same goal, why not aim to achieve