They are working to develop advanced propulsion and habitation—where and how people will live on Mars once they get there.

正努力开发先进的助推器，以及人类登陆火星后的生活舱。

Perhaps super magnets could be created to ward off radiation advanced propulsion systems could reduce the time it takes to get to Mars.

或许强力磁铁可以解决问题，或推进系统的改良可以缩短到火星的航程。

Or is there a country on Earth that has discovered an advanced propulsion system that the public is unaware of?

或者地球上是否有一个国家发现了公众不知道的先进推进系统？