Out in the asteroid belt between Mars and Jupiter, Ceres is the largest unexplored rock in our solar system. The Dawn mission arrived in Ceres' orbit back in March, but we have yet to see any great close-ups of the asteroid. That's because the spacecraft's trajectory brought it swinging around Ceres' dark side for a little while. It's still out there in the dark, but it's getting closer to the light. That's why the asteroid looks crescent-shaped in the latest and greatest images from Dawn, shown above.