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

There's no way to actually turn the rover off.

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

We have concluded that the rocks here were once soaked in liquid water. It changed their texture, and it changed their chemistry. We've been able to read the tell-tale clues the water left behind, giving us confidence in that conclusion.

My style of leadership is to lead with the lightest touch that I possibly can.

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.

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