A lot of people, mostly scientists, have been saying that for the water on the poles there has been life on Mars. But others say there isn't. Is there enough life on Mars to support human life?

is there enough water or mysterious life on Mars to support human life?

Curiosity looks like she has a lot of moving parts. How does she protect herself so that her workings do not get clogged up with dust?

Why couldn't the Mars Science Laboratory fly in 2009 according to its schedule?

What tools and new technology are on curiosity/MSL that were not on previous rovers like spirit and opportunity?

do you that Curiosity will live longer than it's planed mission time ?

As the MSL rover, Curiosity, doesn't have solar panels but has a radioisotope power system - does this give her a shorter life expectancy than Spirit and Oppy? I have seen it stated that this power source is expected to last a year.