Reiner Gamma
Research using data from NASA's ARTEMIS mission suggests that lunar swirls, like the Reiner Gamma lunar swirl imaged here by NASA's Lunar Reconnaissance Orbiter, could be the result of solar wind interactions with the Moon's isolated pockets of magnetic field. Credits: NASA LRO WAC science team
art002e012114 (April 6, 2026) - A diverse set of lunar features is visible in this view, including the brightly colored Aristarchus crater, whose high reflectivity stands out against the surrounding terrain. Nearby, the Marius Hills region reveals a field of volcanic domes and cones, evidence of past lunar volcanism. The sinuous Reiner Gamma swirl contrasts with the darker mare surface, while rays from Glushko crater streak across the plains. At the bottom of the frame, the dark-floored Grimaldi crater anchors the scene.
This animated artist's concept depicts three small rovers – part of NASA's CADRE (Cooperative Autonomous Distributed Robotic Exploration) technology demonstration headed for the Moon – driving together on the lunar surface. Motiv Space Systems in Pasadena, California, created the rendering and collaborated with NASA's Jet Propulsion Laboratory on critical rover and mobility functions. Slated to arrive aboard a lunar lander at the Reiner Gamma region of the Moon under NASA's CLPS (Commercial Lunar Payload Services) initiative, CADRE is designed to demonstrate that multiple robots can cooperate and explore together autonomously – without direct input from human mission controllers. A trio of the miniature solar-powered rovers, each about the size of a carry-on suitcase, will explore the Moon as a team, communicating via radio with each other and a base station aboard the lander. By taking simultaneous measurements from multiple locations, CADRE will also demonstrate how multirobot missions can record data impossible for a single robot to achieve – a tantalizing prospect for future missions. Motiv contributed subsystems and hardware elements for three of four CADRE systems, including designing and building the mobility system and rover chassis, the base station, the rover deployers, and the motor controller boards. The company also procured and tested the actuators with the flight motor controller boards. Animation available at https://photojournal.jpl.nasa.gov/catalog/PIA26296