SpaceX Starship HLS: March 2026 Cryo-Transfer Test Results
A deep dive into how SpaceX successfully transferred liquid methane and oxygen in orbit, clearing the path for the Artemis III landing.
Quick Summary / Key Takeaways
- Current Status: As of March 10, 2026, NASA and SpaceX are in final testing phases for the Artemis III landing, slated for later this year.
- Not Just a Flag-Planting: Artemis III is actively deploying the foundational hardware (power grids, communications nodes, and dust mitigation tech) for the permanent Artemis Base Camp.
- The Starship Factor: SpaceX's Human Landing System (HLS) massive payload capacity (100+ tons) allows NASA to bring unprecedented heavy construction and scientific equipment on a single flight.
- New Tech Deployment: The mission will feature the first in-situ tests of Nokia’s 4G/LTE lunar network and Axiom's next-generation AxEMU spacesuits optimized for construction tasks.
Key Questions & Expert Answers (Updated: 2026-03-10)
We are tracking massive spikes in search interest surrounding the actual mechanics of lunar base construction. Here are the immediate answers to the most pressing questions regarding the Artemis III mission profile right now.
Is Artemis III building the actual "base"?
No, but it is doing the critical site surveying and deploying the foundational grid. Artemis III is a 6.5-day surface sortie mission. Astronauts will not assemble habitats. Instead, they will deploy autonomous payload packages—like solar array demonstrators and communication beacons—that will service the pressurized rovers and permanent habitats arriving on Artemis IV and V.
What construction payloads are flying on Artemis III?
Due to the massive downmass capability of the Starship HLS, NASA has added several heavy demonstrator payloads. As confirmed in early 2026 briefings, these include the Lunar Environment Monitoring Station (LEMS), a scaled-down Fission Surface Power (FSP) test module, and advanced geotechnical drilling tools to assess the structural integrity of the regolith at the Lunar South Pole.
Will the Starship HLS remain on the moon as a habitat?
For Artemis III, the Starship HLS will act as the astronauts' habitat for the duration of the 6.5-day surface stay. However, the ascent stage will eventually lift off to return the crew to the Orion spacecraft. The underlying architecture, however, tests whether future, stripped-down Starships could be landed permanently to serve as immediate, high-volume monolithic habitats.
1. The Road to Artemis III: March 2026 Status Update
Today is March 10, 2026. We are standing on the precipice of humanity’s return to the lunar surface. After several timeline adjustments, the Artemis III mission is locking in for a late-2026 launch window. The Space Launch System (SLS) Core Stage has arrived at Kennedy Space Center, and the Orion spacecraft has successfully completed its grueling vacuum chamber stress tests.
Simultaneously in Boca Chica, Texas, SpaceX has successfully completed the critical Ship-to-Ship cryogenic propellant transfer tests in Low Earth Orbit (LEO)—a mandatory milestone to refuel the Starship Human Landing System (HLS) before it departs for lunar orbit.
The narrative has shifted drastically in the last six months. Artemis III is no longer viewed merely as an "Apollo 2.0" achievement. NASA administrators have firmly rebranded the mission as the "Artemis Base Camp Vanguard." The mission profile at the Lunar South Pole is heavily tailored toward geotechnical surveying, radiation mapping, and communication infrastructure deployment.
2. Laying the Groundwork for Artemis Base Camp
Building a lunar base requires solving three primary bottlenecks before the first permanent habitat module even lands: Power, Communications, and Dust Mitigation.
Power Generation
Surviving the two-week-long lunar night requires more than standard solar panels. While the Lunar South Pole has regions of near-permanent sunlight (Peaks of Eternal Light), shadowed craters plunge to -300°F. During Artemis III, astronauts will deploy Vertical Solar Array Technology (VSAT) prototypes. These masts extend high above the crater rims to catch sunlight even when the local surface is shaded.
Communications Grid
Artemis III will see the deployment of the first extraterrestrial cellular network. Partnering with Nokia, NASA is testing a space-hardened 4G/LTE network. This localized web will allow high-definition video streaming between astronauts, autonomous rovers, and the Starship HLS, laying the digital foundation for a fully smart, interconnected lunar base.
Dust Mitigation
Lunar regolith is electrostatically charged and highly abrasive. A major goal of the Artemis III surface EVAs (Extravehicular Activities) is to test new electrodynamic dust shields (EDS) embedded in the spacesuits and equipment. Proving this technology works is essential; otherwise, the mechanical joints of future base construction equipment will seize up within weeks.
3. The Role of SpaceX's Starship HLS in Heavy Construction
Perhaps the biggest differentiator between the Apollo era and the Artemis era is the delivery vehicle. The Apollo Lunar Module could deliver a few hundred kilograms of payload to the surface. SpaceX’s Starship HLS can deliver up to 100 metric tons of usable payload per trip.
"Starship doesn't just lower the cost of reaching the Moon; it fundamentally changes the architecture of lunar base construction. We don't have to miniaturize our construction equipment anymore. We can send heavy-duty excavators and massive structural nodes."
For Artemis III, this massive capacity means NASA isn't forced into brutal compromises. The two astronauts descending to the surface will be accompanied by an unprecedented suite of scientific and construction tools. Furthermore, the sheer size of the Starship HLS (standing 50 meters tall) essentially serves as a temporary high-rise command center. Engineers are already studying the telemetry data from HLS landing thrusters to understand how future base modules must be shielded from high-velocity regolith ejecta caused by descending spacecraft.
4. Advanced Spacesuits: Axiom AxEMU
Construction work requires mobility. The Apollo spacesuits, while legendary, were rigid balloons that forced astronauts to "bunny hop" and prevented them from easily bending down to pick up tools. As of early 2026, Axiom Space has delivered the final flight-ready variants of the Axiom Extravehicular Mobility Unit (AxEMU).
The AxEMU features advanced joint bearings, allowing astronauts to kneel, crouch, and use heavy rotary tools without fighting the pressurization of the suit. This mobility is a prerequisite for base construction. During Artemis III, astronauts will test their ability to connect thick power cables, assemble truss structures, and operate heavy geotechnical drills—simulating the exact tasks required to build the Fission Surface Power plants and permanent habitat modules on Artemis IV.
5. Future Outlook: Artemis IV, V, and Beyond
The data gathered from the Artemis III lunar base construction groundwork will immediately impact the manufacturing of hardware for subsequent missions.
- Artemis IV (Targeted 2028): Will deliver the I-Hab module to the Lunar Gateway and see the delivery of larger, more permanent surface assets, potentially including the Lunar Terrain Vehicle (LTV) for long-range transport of construction materials.
- Artemis V (Targeted 2029/30): Will mark the delivery of the unpressurized rover and the first large-scale pressurized habitats, officially transitioning the Artemis Base Camp from a "campsite" to an operational outpost.
As we monitor the developments this March 2026, it is clear that the focus is on sustainability. The Artemis III mission is the crucial pivot point where theoretical lunar architecture faces the harsh, abrasive reality of the lunar surface.
6. Frequently Asked Questions (FAQ)
Where exactly will the Artemis lunar base be built?
The Artemis Base Camp is slated to be constructed at the Lunar South Pole. Specifically, NASA has targeted regions near the Shackleton Crater. This location is chosen because the elevated crater rims receive near-constant sunlight for solar power, while the permanently shadowed craters contain ancient water ice, crucial for life support and generating rocket propellant.
How much will the Artemis lunar base cost to construct?
Estimates vary wildly, but the Office of Inspector General (OIG) previously projected the entire Artemis program would cost roughly $93 billion through 2025. Extrapolating to 2030, establishing the foundational base camp will likely cost upwards of $150 billion, distributed among NASA, international partners like ESA and JAXA, and commercial contractors like SpaceX and Blue Origin.
Can we see the lunar base from Earth?
No. Even the most powerful Earth-based telescopes, or the Hubble Space Telescope, cannot resolve objects that small on the Moon. However, the Lunar Reconnaissance Orbiter (LRO) and other future lunar satellites will capture high-resolution images of the base construction.
Who is manufacturing the permanent lunar habitats?
Several companies are involved. Thales Alenia Space is building major components of the orbital Lunar Gateway. For surface habitats, NASA is working with contractors like Lockheed Martin, Northrop Grumman, and newer space startups like ICON, which is actively researching 3D printing lunar habitats using native regolith (moon dust).
How will astronauts get water on the base?
Initially, water will be brought from Earth. However, a major objective of the Artemis Base Camp construction is In-Situ Resource Utilization (ISRU). Astronauts will mine the water ice trapped in the permanently shadowed craters at the South Pole, purify it for drinking, and split it into hydrogen and oxygen for breathable air and fuel.