NASA Selects Mission to Probe Marius Hills Lunar Pit
The mission will use radar and seismic sensors to evaluate if underground lava tubes exist to shield future human habitats.
Updated on Oct. 21, 2026 in Space
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NASA has selected a Planetary Science Institute proposal to investigate a lunar pit in the Marius Hills region. The mission aims to determine if the site connects to subterranean lava tubes that could potentially host future human habitats.
Why it matters
Identifying stable underground environments is essential for shielding future lunar missions from extreme temperature fluctuations and radiation. This project explores whether natural volcanic features can offer the structural protection necessary for long-term lunar habitation.
The Geophysical Instruments for Marius Lunar pit Investigation project will deploy ground-penetrating radar, seismic sensors, and a gravimeter to measure subsurface density and structure. This suite must meet the technical integration requirements of a Commercial Lunar Payloads Services lander and rover.
The players
NASA
The United States federal agency responsible for the civil space program and oversight of commercial lunar payload partnerships.
Planetary Science Institute
A non-profit research organization specializing in solar system exploration and planetary geology.
Honeybee Robotics
A Blue Origin subsidiary that develops advanced robotic hardware and specialized drilling systems for extreme space environments.
The details
The mission targets a pit situated within a sinuous rille, a channel-like feature formed by ancient lunar lava flows. By using ground-penetrating radar to bounce radio waves off subsurface layers and seismic sensors to detect vibrations, the team intends to map potential voids beneath the surface. Integrated cameras will concurrently capture high-resolution imagery of the pit walls and floor to provide a visual analysis of the geological layers.
Timeline
The Moon was volcanically active in the past, forming features like sinuous rilles.
The Apollo missions era marked the first time astronauts conducted seismic surveys on the lunar surface.
The Tech Race
This mission represents a shift toward assessing lunar subterranean geography under NASA's Payloads and Research Investigations on the Surface of the Moon program. It builds upon foundational seismic data gathered during the Apollo era to evaluate whether volcanic tubes are viable structural assets.
This project provides the foundational geological data necessary to determine the feasibility of building future human habitats in lunar lava tubes. It does not provide immediate benefits to current operations but establishes the baseline requirements for future lunar infrastructure and shelter design.
The takeaway
The investigation will clarify how ancient lunar volcanism shaped the sub-surface environment of the Marius Hills. Future mission updates from the Planetary Science Institute will determine if these specific pits possess the structural volume required for long-term habitat shielding.
Further reading
For more on lunar exploration missions, visit the Space section.
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