Artemis III Lunar Landing Zone Selection: The Final Push for the South Pole
Quick Summary
As of March 14, 2026, NASA is in the final stages of narrowing down the Artemis III lunar landing zones. With the targeted September 2026 launch rapidly approaching, the evaluation focuses heavily on the Lunar South Pole due to its strategic reserves of water ice hidden in permanently shadowed regions (PSRs). The massive profile of SpaceX's Starship Human Landing System (HLS) and the mobility parameters of the Axiom Extravehicular Mobility Unit (AxEMU) spacesuits have heavily influenced recent site down-selections, with Malapert Massif and Mons Mouton emerging as frontrunners.
Key Questions & Expert Answers (Updated: 2026-03-14)
Based on current trending queries surrounding the impending Artemis III mission, here are the immediate answers to the most pressing questions regarding the lunar landing selection:
Which landing zones are currently the top contenders?
As of early 2026, NASA has narrowed its focus primarily to Malapert Massif, Mons Mouton, and the Shackleton-de Gerlache Ridge. These sites offer the best combination of direct line-of-sight communication with Earth, extended periods of sunlight, and proximity to scientifically invaluable permanently shadowed regions (PSRs).
Why did NASA choose the Lunar South Pole instead of the Apollo equatorial sites?
The Apollo missions landed near the lunar equator, which features flat, predictable terrain but extreme temperature fluctuations and zero water. The Lunar South Pole holds millions of tons of trapped water ice. Accessing this ice is mandatory for establishing a sustainable human presence, as it can be processed into drinking water, breathable oxygen, and rocket propellant.
How does SpaceX's Starship change the landing equation?
SpaceX's Starship Human Landing System (HLS) is unprecedented in size, standing roughly 50 meters (164 feet) tall. Because of its massive height, high center of gravity, and powerful Raptor engines, the landing site must have exceptionally low slope tolerances (nearly perfectly flat) and minimal loose regolith to prevent dangerous plume surface interaction (ejecta) during touchdown.
Will the September 2026 launch date hold?
Currently, NASA maintains the September 2026 target. The final go/no-go heavily depends on the upcoming uncrewed Starship HLS demonstration landing and final thermal vacuum testing of the Axiom spacesuits scheduled for late Spring 2026. Any anomalies in these tests could force a shift to 2027.
The Strategic Importance of the Lunar South Pole
The decision to target the Lunar South Pole for Artemis III represents a massive paradigm shift from the Apollo era. Half a century ago, NASA sought the safest, flattest equatorial plains to guarantee a successful landing. Today, the goal is not merely to visit, but to stay. This requires utilizing in-situ resource utilization (ISRU), meaning living off the land.
The topography of the South Pole is rugged, dominated by towering massifs and deep impact craters. Because the Moon’s axis is tilted only 1.5 degrees relative to the ecliptic plane, the sun hovers perpetually near the horizon at the poles. This creates two vital geographical phenomena:
- Peaks of Eternal Light: High-elevation ridges that receive near-constant solar illumination. This is critical for powering the Starship HLS and astronaut surface operations, as enduring a 14-day lunar night on battery power is currently unfeasible for the mission architecture.
- Permanently Shadowed Regions (PSRs): Deep crater floors that have not seen sunlight in billions of years. Temperatures here plunge below -200°C (-328°F), acting as cold traps that capture and preserve volatile compounds—most importantly, water ice delivered by ancient comet impacts.
The delicate balancing act for the Artemis III landing zone selection is finding a spot that places astronauts in safe, continuous sunlight while remaining within walking distance of a dark, icy crater.
The Final Candidate Regions for 2026
Back in 2022, NASA announced 13 initial candidate regions. Through a grueling series of iterative refinements analyzing thousands of high-resolution images from the Lunar Reconnaissance Orbiter (LRO), the list has been significantly winnowed down by early 2026. The primary focus is now resting on a handful of prime real estate locations.
Malapert Massif remains a massive favorite. Located adjacent to the Malapert crater, this towering peak offers a remarkably flat plateau for a mountain of its size. Furthermore, its earth-facing orientation guarantees uninterrupted direct-to-Earth (DTE) radio communications, a critical safety requirement before the full Lunar Gateway communication relay is operational.
Mons Mouton (formerly known as the mesa near crater Nobile) has also seen elevated interest from the planetary science community. It boasts a wide, relatively forgiving terrain that eases the strict landing constraints of the Starship vehicle, and it sits adjacent to craters confirmed by orbital spectroscopy to harbor high concentrations of hydrogen (a proxy for water).
The Shackleton-de Gerlache Ridge is the most dramatic, connecting the rim of the famous Shackleton crater to the de Gerlache crater. While scientifically tantalizing, the ridge features narrower safe landing ellipses and steeper drop-offs, making it a higher-risk, higher-reward candidate.
How NASA Evaluates a Landing Zone
Selecting the final 100-by-100 meter landing pad is a multidisciplinary nightmare requiring compromises between engineers, scientists, and orbital dynamicists. As of March 2026, the evaluation criteria matrix consists of four main pillars:
- Lighting Availability: The landing site must be illuminated for the entire 6.5-day duration of the surface mission. Any shadow cast by a neighboring mountain that sweeps over the lander could cut off solar power and abort the mission.
- Earth Visibility: Because Artemis III precedes the complete deployment of lunar relay satellites, the landing zone must maintain a direct line of sight to Earth for continuous S-band and Ka-band communications.
- Terrain Slopes: This is arguably the most restrictive factor. The chosen site must not exceed a specific slope threshold (often cited as less than 8 degrees) to prevent the tall HLS from tipping.
- Science Value: The site must allow astronauts to conduct high-value geology. They must be able to deploy instruments, collect core samples, and ideally, chip ice from the edge of a PSR.
Impact of SpaceX Starship HLS on Site Selection
It is impossible to discuss the Artemis III landing zone without discussing the vehicle that will perform the landing. The SpaceX Starship HLS fundamentally changes the geometry of lunar exploration. The Apollo Lunar Module was relatively squat. Starship is a skyscraper.
Recent data analyzed in 2025 and early 2026 has brought the issue of Plume Surface Interaction (PSI) to the forefront. When Starship's engines fire during the final descent, they will displace an enormous volume of lunar dust and rocks. Because the Moon lacks an atmosphere to slow down ejecta, rocks kicked up by the engines can travel at ballistic velocities for miles, potentially damaging the lander itself or surrounding areas.
Because of this, NASA has been utilizing advanced supercomputer models to simulate Starship landings on the final candidate sites. A site that looks flat on an LRO map might be rejected if radar data suggests the surface is covered in deep, loose regolith that could create an unmanageable ejecta cloud or a sinkhole effect upon touchdown. The final site chosen for 2026 must be built on relatively solid lunar bedrock.
Axiom Spacesuits and Surface Mobility
The range of exploration during Artemis III is strictly dictated by the capabilities of the Axiom Extravehicular Mobility Unit (AxEMU). The astronauts will not have a Lunar Roving Vehicle (LRV) on this first mission; they will be on foot.
According to the 2026 mission baseline, astronauts will conduct up to four moonwalks (EVAs). The landing zone must be situated close enough to areas of scientific interest so that astronauts can walk to them, perform their tasks, and return, all within the life-support constraints of the AxEMU (roughly 6-8 hours). Furthermore, the suits are heavy. While they offer far better joint mobility than the Apollo suits, walking up a steep crater rim is physically exhausting. The selected landing site must have gentle egress paths leading into the shadowed regions.
Future Outlook: The Road to September 2026
Today is March 14, 2026. We are roughly six months away from the targeted launch of Artemis III. The window for finalized mission planning is closing rapidly.
In the coming weeks, we expect NASA’s Artemis architecture team to officially narrow the list to a single primary landing site and one or two backups. This final selection will trigger the loading of precise trajectory coordinates into the Orion spacecraft and the Starship HLS computers.
As the hardware integration at Kennedy Space Center accelerates, all eyes are on the Southern highlands of the Moon. The specific coordinates chosen in the coming days will be etched into history, marking the exact spot where humanity returned to the lunar surface to stay.
Frequently Asked Questions (FAQ)
When is Artemis III scheduled to launch?
As of early 2026, NASA is targeting September 2026 for the Artemis III launch. However, this remains contingent on the successful completion of the uncrewed Starship HLS landing test and final spacesuit certifications.
How long will the astronauts stay on the Moon?
The Artemis III surface mission is designed to last approximately 6.5 days. During this time, the crew will live inside the Starship HLS and conduct up to four moonwalks.
Who will land on the Moon during Artemis III?
Four astronauts will launch aboard the Orion spacecraft. Two of them will transfer to the Starship HLS and descend to the lunar surface. NASA has committed to landing the first woman and the first person of color on the Moon for this mission. The specific crew assignment from the Artemis cadre is expected to be finalized imminently.
Why is Starship HLS so important for this mission?
SpaceX's Starship HLS is the vehicle contracted by NASA to transport astronauts from lunar orbit down to the surface and back up. Its massive payload capacity allows for more equipment and living space, but its size also requires stringent landing site conditions.
Will Artemis III establish a permanent moon base?
No, Artemis III is a sortie mission. However, it will prove the technologies, landing capabilities, and spacesuits necessary for future missions (Artemis IV and beyond) which will eventually construct the Artemis Base Camp.
Is there actually ice at the Lunar South Pole?
Yes. Data from orbital probes, including the Lunar Reconnaissance Orbiter and India's Chandrayaan missions, have confirmed the presence of water ice mixed with regolith within the permanently shadowed craters of the South Pole.