Feedback - They needed to deal with the curiosity rover on earth to see if it would work on Mars. They needed to make it seem as though the rover was on mars. This was necessary if they wanted to be able to do the real thing. You can see them work their best to make sure the rover is working.

        On mars, it is a whole new thing that you need to be careful with. You see the mars rover does a task or objective every day and sends the information back to earth. You learn that you have to be careful the farther your goal gets. It's not just a simple video of a rover its the hard work that is needed to be able to do these big things.