Artemis III Lunar Landing Site Final Selection: Complete 2026 Guide
Key Takeaways (TL;DR)
- The Final Choice: As of March 2026, NASA has officially finalized Peak Near Shackleton at the Lunar South Pole as the primary landing site for Artemis III.
- Launch Timeline: The mission remains on track for its revised target launch date of September 2026.
- Strategic Importance: The site offers an unparalleled combination of sustained solar illumination for power and immediate access to Permanently Shadowed Regions (PSRs) suspected of holding ancient water ice.
- Backup Selection: Malapert Massif has been designated as the primary backup site, offering a flatter approach profile for the Starship Human Landing System (HLS).
Key Questions & Expert Answers (Updated: 2026-03-14)
What is the official landing site for Artemis III?
After years of analyzing high-resolution orbital data and revising the candidate list, NASA has officially selected the Peak Near Shackleton (often referred to simply as Shackleton Peak) as the primary landing site. This location sits precisely on the rim of the Shackleton Crater near the lunar south pole.
Why was Peak Near Shackleton chosen over the other 12 regions?
The selection came down to survivability and scientific yield. Peak Near Shackleton receives near-continuous sunlight—vital for solar power and thermal regulation of the SpaceX Starship HLS and the astronauts' Axiom spacesuits. Simultaneously, it is a short walking distance to deep crater floors that have not seen sunlight in billions of years, making it the ideal location to harvest ice.
Is the Artemis III mission still launching in 2026?
Yes. Following the initial delays from 2024 to 2025, and subsequently to late 2026, the current manifest holds steady for a September 2026 launch. Recent successful orbital transfer tests by SpaceX and life-support certifications for the Orion spacecraft have solidified this timeline.
Who are the astronauts going to the surface?
While the broader Artemis III crew of four has been established, the specific two astronauts (including the first woman and the first person of color) who will descend to the lunar surface in the Starship HLS will be formally announced by NASA closer to the summer of 2026.
1. The Final Choice: Why Peak Near Shackleton Won
The journey to selecting the Artemis III landing site has been one of the most rigorous geological and orbital mechanics exercises in NASA’s history. Originally, in 2022, NASA announced 13 candidate regions. By late 2024, as the capabilities of the SpaceX Starship Human Landing System (HLS) became clearer, the list was narrowed down.
Today, on March 14, 2026, we know the definitive target: Peak Near Shackleton.
Located near the moon's South Pole, this elevated ridge offers a paradox of extremes. The peak itself is bathed in sunlight for the vast majority of the lunar year. Because the Moon's axis is only tilted by 1.5 degrees (compared to Earth's 23.5 degrees), the sun hovers perpetually near the horizon at the poles. High elevation points like Shackleton Peak catch the light, creating "Peaks of Eternal Light," while the valleys below plunge into absolute, permanent darkness.
NASA's selection matrix prioritized three non-negotiable factors:
- Safe Landing Terrain: The Starship HLS is a massive vehicle, towering over 160 feet. It requires a relatively flat, stable plateau with minimal large boulders. High-resolution imagery from the Lunar Reconnaissance Orbiter (LRO) confirmed a suitable landing ellipse on the Shackleton ridge.
- Illumination: Extended missions require immense power. The continuous sunlight ensures the solar arrays on the HLS can remain charged, and it mitigates the brutal temperature drops of the lunar night (which can plunge to -280°F / -173°C).
- Earth Communications: The peak offers a direct, unobstructed line-of-sight to Earth, which is critical for the continuous high-bandwidth data and video streams required for surface operations.
2. The Science of the Lunar South Pole
The Apollo missions of the 1960s and 1970s all landed in the equatorial regions of the Moon—areas characterized by vast, flat basaltic plains (maria). The Artemis generation is headed to a vastly different, more rugged, and scientifically richer environment.
The holy grail of Artemis III is the exploration of Permanently Shadowed Regions (PSRs). These are deep craters near the poles where the sun never shines. Temperatures inside PSRs hover around -414°F (-248°C), making them some of the coldest places in the solar system.
Over billions of years, these cold traps have captured and preserved volatile chemicals, most notably water ice. During the two planned moonwalks (Extravehicular Activities or EVAs), the astronauts will venture from the sunlit safety of Shackleton Peak down into the edges of the shadowed craters. Using specialized tools—including illuminated geological hammers and cryogenic sampling tubes—they will extract ice core samples.
Discovering abundant, accessible water ice is the cornerstone of humanity's future in space. Water can be consumed by astronauts, but more importantly, its molecular components (hydrogen and oxygen) can be split using solar power to create rocket fuel. This transforms the Moon from a mere destination into a refueling station for future missions to Mars.
3. The Runner-Up: Malapert Massif as Backup
Space exploration demands redundancy. While Peak Near Shackleton is the primary target, mission planners have formally designated Malapert Massif as the primary backup site.
Malapert Massif is a towering mountain located slightly further from the exact South Pole. It was heavily favored by some mission engineers because of its incredibly flat and expansive summit. The approach trajectory for the Starship HLS would be slightly more forgiving at Malapert.
However, Malapert Massif lost out as the primary site because its distance to deep, ice-rich PSRs is greater. Astronauts would have to traverse significantly further to gather the high-value cryogenic samples that define the mission's primary scientific objective. If an anomaly requires a shift in the landing date, changing the lighting conditions at Shackleton, the mission will seamlessly pivot to Malapert Massif.
4. 2026 Mission Architecture Updates
As we sit six months out from the targeted September 2026 launch window, the hardware architecture is finalizing its testing phases.
- Space Launch System (SLS) and Orion: The SLS Block 1 rocket has completed its core stage integration. The Orion spacecraft, which will carry the four-person crew from Earth to a Near-Rectilinear Halo Orbit (NRHO) around the Moon, has passed its final vacuum and life-support tests.
- Starship HLS: SpaceX has successfully completed the critical Ship-to-Ship cryogenic propellant transfer test in Low Earth Orbit (LEO). This was the major technological hurdle for the mission. The Starship HLS must be fueled in Earth orbit by multiple "tanker" Starships before embarking on its journey to lunar orbit to await the Orion crew.
- Axiom Space AxEMU Suits: Axiom Space has delivered the flight-ready Extravehicular Mobility Units. These next-generation suits are specifically designed for the extreme cold and jagged lunar dust of the South Pole. They feature advanced joint mobility, allowing astronauts to kneel and bend to collect samples—a massive improvement over the stiff "bunny-hopping" suits of the Apollo era.
5. The Geopolitical Race for the South Pole
The selection of the Artemis III landing site does not exist in a vacuum. It is heavily influenced by the new era of lunar geopolitics. China, in partnership with Russia and other nations, is rapidly advancing its International Lunar Research Station (ILRS) project.
Following the success of China's Chang'e 6 mission, the CNSA (China National Space Administration) has also targeted the Lunar South Pole—specifically the Shackleton and Shoemaker crater regions—for their upcoming Chang'e 7 and Chang'e 8 robotic missions, laying the groundwork for a crewed Chinese landing by 2030.
The "first-come, first-served" nature of optimal lunar real estate is a driving factor. By landing at Peak Near Shackleton in 2026, the United States and its Artemis Accords partners are establishing a precedent for peaceful, transparent operations in the most strategically valuable region of the Moon.
6. Next Steps & Future Outlook
The coming months will be a flurry of activity. The timeline from today (March 14, 2026) to the September launch involves:
- April 2026: Final orbital dynamics and trajectory lock for the Earth-to-Moon transit.
- May 2026: Rollout of the SLS rocket to Launch Pad 39B at Kennedy Space Center for wet dress rehearsals.
- July 2026: Launch of the initial SpaceX Starship propellant tankers to begin filling the LEO depot.
- August 2026: Launch of the Starship HLS to LEO, fueling, and subsequent transit to Lunar NRHO.
- September 2026: Artemis III crew launch aboard SLS/Orion.
Artemis III is not just a flags-and-footprints mission. It is the vanguard of a sustained human presence on another celestial body. The data gathered from the icy shadows of Shackleton Crater will dictate the architecture of the Artemis Base Camp planned for the 2030s.
7. Frequently Asked Questions (FAQ)
How long will the astronauts stay on the Moon?
For Artemis III, the two surface astronauts will spend approximately 6.5 days living inside the Starship HLS on the lunar surface. During this time, they will conduct two to four moonwalks, each lasting up to six hours.
Will they drive a rover during Artemis III?
No. The Lunar Terrain Vehicle (LTV)—the unpressurized rover currently in development by private contractors—is slated to arrive on a subsequent mission (Artemis V). For Artemis III, the astronauts will explore strictly on foot within a 2-kilometer radius of the lander.
What happens if the primary landing site is unsafe during descent?
The Starship HLS is equipped with advanced Autonomous Landing and Hazard Avoidance Technology (ALHAT). If it detects boulders or dangerous slopes at Peak Near Shackleton during the final descent, it can autonomously divert to pre-mapped safe zones nearby, or ultimately abort back to orbit if no safe zone is found.
Why did the launch date slip to 2026?
The shift from 2025 to 2026 was announced in early 2024 to allow more time for the development and testing of critical technologies, primarily the SpaceX Starship orbital refueling process and the life-support systems of the Orion capsule following anomalies discovered after the Artemis I uncrewed flight.
How cold is it at the lunar south pole?
In the sunlit areas where the astronauts will land, temperatures are manageable and can reach around 130°F (54°C). However, inside the Permanently Shadowed Regions where they will hunt for ice, temperatures drop to around -414°F (-248°C).
Who builds the spacesuits for this mission?
Unlike the Apollo missions where suits were built entirely in-house by NASA contractors, the Artemis III suits (AxEMU) are designed, built, and maintained by Axiom Space under a commercial services contract with NASA.