Curiosity and its supporting hardware landed on the Martian surface, and have begun sending back pictures from Mars. Here's the latest ones released by NASA along with other pictures related to the mission.
Recent small craters discovered by the High Resolution Imaging Science Experiment camera on NASA's Mars Reconnaissance Orbiter expose buried ice in the middle latitudes of Mars. This ice is a record of past climate change. Not stable today, it was deposited during a period of different obliquity, or tilt, of the planet's axis.