Is there water still on Mars? I don't have a view on that because we don't have good data to answer that question. One of the biggest mistakes you can make if you're a scientist is to think you know the answer, or wish for a certain answer, before you actually have it.

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

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.

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

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.

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