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

Mars is telling us something. I'm not sure what it is because It's speaking martian. But it's telling us something

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.

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

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

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

What we initially conceived as a fairly simple geologic experiment on Mars ultimately turned into humanity's first real overland expedition across another planet. Spirit explored just as we would have, seeing a distant hill, climbing it, and showing us the vista from the summit. And she did it in a way that allowed everyone on Earth to be part of the adventure.