NASA-Backed Mission Targets Marius Hills Pit: Could Lunar Caves Host Future Astronauts?

On Episode 234 of This Week In Space, hosts Tariq Malik and Mike Wall speak with Than Putzig of the Planetary Science Institute about a NASA-backed payload destined for the Marius Hills Pit on the moon. This mission aims to explore a collapsed lava tube, a potential natural shelter for future lunar explorers. Putzig explains how such caves could protect astronauts from radiation, micrometeorites, and extreme temperature swings, making them prime candidates for habitats. The payload will gather data on the pit's interior, including its depth, shape, and thermal environment, to assess its viability. Why it matters: If lunar caves prove stable and accessible, they could dramatically reduce the cost and complexity of building surface habitats, accelerating a sustained human presence on the moon. The mission represents a key step in moving from robotic reconnaissance to crewed utilization of lunar resources. With NASA's Artemis program targeting the lunar south pole, findings from Marius Hills could inform site selection and habitat design. The next few years will reveal whether these ancient volcanic tunnels become humanity's first off-world homes.