From the NASA site:

"You don't have to wait for announcements from NASA to see amazing pictures from the Mars Reconnaissance Orbiter yourself. You can wander the planet's plains and mountains, thanks to the orbiter, which scans the planet in extremely high resolution daily, sending home striking postcards. The team that runs the mission's main camera just posted a fresh batch, and scrolling through them offers a chance to comb over each nook and cranny in the landscape, almost like you were walking through them in person."