NASA is formulating a Mars exploration plan for the next decade, receiving advice from all quarters, from outside academic circles to internal NASA working groups, as well as from the White House. And if all goes according to plan, Mars will speak for itself, giving up surface and subsurface secrets as ever-more capable spacecraft — like the two rovers currently en route — survey that mysterious world. How to respond to the expected fast-paced rush of new discoveries, enough so that outgoing missions can take advantage of just-in findings, is a challenge.