These rovers are living on borrowed time. We're so past warranty on them. You try to push them hard every day because we're living day to day.

The rocks, to a great extent, look swept clean. It's a much cleaner surface than what we had a right to hope for.

The thing that sets Mars apart is that it is the one planet that is enough like Earth that you can imagine life possibly once having taken hold there.

That's really what science is just trying to figure stuff out, and I like figuring stuff out.

I want to make as many people as possible feel like they are part of this adventure. We are going to give everybody a sense of what exploring the surface of another world is really like.

I can't ever remember not wanting to be a scientist.

Having been given that public trust, we have a responsibility to share with the public.

We didn't know if the rover could climb up or down the hills of the crater.

You create a pile of dirt and then drive over it. We may have to learn to drive all over again.

It has everything a human field biologist has and then much, much more.