Mars: planet B?

The latest tv series I'm trying is Mars. Here's the plot ...

In the year 2033, a crew of six astronauts launch from Florida on a journey to be the first people to set foot on Mars. During the descent into the Martian atmosphere, there is a malfunction with their spacecraft, the Daedalus. They land 75.3 kilometres away from their planned habitat. On Earth their progress is being monitored.

Intermixed with the story are real-life interview footage from the year 2016, of the crew, and their mission control; there are interviews with various scientists, and engineers, such as Elon Musk, Andy Weir, Robert Zubrin, and Neil deGrasse Tyson, about the difficulties that the crew might face on a journey to, and living on, Mars.

I've only watched one episode so far but it's interesting, and there's a lot about Elon Musk and SpaceX.

I've got to say, though, that the almost religious fervor some people inject into the space program, especially the idea of living on Mars, bothers me. As a species, we already have a place to live and we're taking shameful care of it. Home-worlds aren't just disposable simply because we can accomplish space travel. If we don't have the discipline and integrity to do what's necessary to save our environment and the other creatures we share it with, I don't think we deserve to turn our backs and move on.

Here's a short TED talk by astronomer Lucianne Walkowicz - "Let's not use Mars as a backup planet" ...