Breaking News! NASA just selected its next Discovery-class mission. We’re going back to Mars with InSight: a stationary lander to study the geophysics of Mars. For the first time ever, it will deploy a seismometer, a heat-flow probe 5 meters (!), and an antenna to very accurately measure Mars’ movement around the sun. Less-than-good-news: no color camera.
More info here: http://insight.jpl.nasa.gov/