Demo
    A four-wheeled NASA rover prototype with large tires and a mechanical arm stands on a rocky, barren terrain under a clear blue sky.
    NASA tested its K-REX rover in the Mojave National Preserve in Southern California to mimic a lunar mission.
    A four-wheeled robotic rover with a drill apparatus stands on a rocky, desert-like terrain under a clear sky.
    KREX-2’s tools for potential Mars exploration include a lightweight, low-power drill (blue).