No words can be interesting in a grave situation like then, where people are lost on Mars and not even sure if they would ever be able to find their way back home again and even uncertain about their survival - except for something which can give them a ray of hope, show some light at the end of the tunnel. Not sure about your storyline, but you will have to think on these lines to lift up their moods.
The details about if those outposts can communicate with themselves or earth are also missing. Maybe something where one of the outposts could find a way to repair their communication equipment, and it's possible that soon they could be able to contact earth.