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

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.

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.

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

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

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

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