The images were captured with Curiosity's front and rear Hazard-Avoidance Cameras, or Hazcams. Rover drivers use these black-and-white cameras to plan safe drive routes. A long series of images can be put together to create a video so that scientists can look for passing clouds or dust devils, which teach them more about the Martian environment. The perfect time for doing this type of work is when Curiosity is less active for long stretches, as it was during Mars solar conjunction. The lack of robotic arm motion and driving during conjunction allowed the Hazcams to image for 12 hours of a day – from 5:30 a.m. to 5:30 p.m. local Mars time – for the first time. While these Hazcam videos didn’t reveal any clouds or dust activity, they did capture the passage of time as the Sun rose and set.