Room with a view on the Moon

Artist rendering of what could be the first hotel on the Moon. Credit: Galactic Resource Utilization Space

Galactic Resource Utilization (GRU) Space published a white paper in January outlining their ambitious plans for a combination lunar base and hotel on the Moon. They believe this plan will accelerate humanity’s transition to an interplanetary species. Authored by the founder of the startup Skyler Chan (a recent UC Berkeley graduate with experience in space hardware and software), the document critiques the current state of the space industry and proposes a private-sector-led approach centered on lunar tourism as the catalyst for broader infrastructure development. GRU Space, backed by Y Combinator, was founded last year.

Chan asserts that humanity stands at a pivotal moment where becoming an interplanetary civilization is achievable within our lifetimes. He argues that the current legacy space ecosystem relies heavily on two pillars: government-subsidized exploration (such as NASA’s Artemis program) and massive launch capabilities (e.g. the Space Launch System and SpaceX’s Starship). However, a true commercial “lunar economy” remains virtually nonexistent. The industry suffers from a stagnation cycle—companies wait for government contracts to fund development, while agencies demand proven hardware before committing funds. This creates a deadlock where advanced technologies (e.g. lunar robotics, power systems, comms) exist in isolation without real customers or demand drivers.

GRU Space rejects this dependency on slow government timelines and “customer discovery” phases. Instead, the company aims to create immediate, tangible value for people on Earth to jumpstart economic activity off-world. Their core thesis: space tourism, specifically a lunar hotel, is the fastest and most practical “wedge” to bootstrap a self-sustaining lunar economy. Chan’s proposed solution: GRU Space’s flagship project to build and operate the first hotel on the Moon, initially as a high-end tourism destination for short multi-day stays. This hotel would serve paying customers (with reservations already open for deposits ranging from $250,000 to $1 million) while simultaneously demonstrating and de-risking technologies essential for permanent lunar infrastructure. GRU’s innovations and phased approach include:

  • Mission I (2029): A small ~10 kg payload delivered via a Commercial Lunar Payload Services (CLPS) lander to test core habitation technologies, particularly an inflatable structure featuring an airtight bladder, structural fabric, micrometeoroid shielding, and thermal/UV protection layers.
  • Mission II (2031): Deployment of a lunar cave base using inflatable systems positioned near a lunar pit or lava tube skylight for natural radiation shielding and resource access. Although not in their current plans, this could pave the way for eventual pressurization of a lava tube for habitation, a concept that has already had preliminary studies completed and covered by SSP.
  • Mission III (2032): Delivery of the first operational lunar hotel via a heavy-lift launch vehicle and lander, accommodating up to four guests initially (with plans to scale to 10 in later versions) located in scenic locals, featuring stunning views of Earth and thrilling extravehicular activities.

The initial hotel will be constructed from inflatable modules shipped from Earth. Future expansions will transition to in-situ resource utilization (ISRU)—processing lunar regolith into durable bricks or structures using automated robotic systems. This reduces launch costs dramatically and enables scalable construction of roads, warehouses, mass drivers (proposed by Elon Musk recently), and other base elements including locally sourced oxygen. GRU’s team is staffed perfectly for these technologies. Cofounder and Member of Technical Staff Kevin Cannon is a planetary geologist and an authority on ISRU. He’s been the source for several posts on SSP and will know exactly where and how to access lunar resources needed for the effort.

The lunar hotel is envisioned to be a high-end destination that generates revenue from customers coming up from Earth, while simultaneously validating ISRU, habitation and life support technologies for more expansive infrastructure.

GRU Space’s broader vision after the hotel positions the company as an architect of long-term human presence on the Moon and Mars with a technical roadmap progressing as follows:

  • Solve the problem of off-world surface habitation via the hotel
  • Expand to support a full base with infrastructure including roads, resource processing, and storage.
  • Replicate the model for population centers on Mars for millions of people.

The approach leverages commercial transportation (e.g., from SpaceX or Blue Origin) and focuses on creating goods/services with Earth-side value (tourism experiences) to generate revenue and prove viability. This contrasts with government-led efforts by prioritizing private customers and rapid iteration.

Overall, the document combines technical roadmap details with economic philosophy, emphasizing self-reliance, revenue-driven development, and urgency in seizing the current window for interplanetary expansion. While ambitious and early-stage (with no operational hardware as of yet), it reflects a startup mindset applied to space settlement, backed by expertise in ISRU, robotics, and space systems from the founding team.

Chan concludes the white paper with a bold claim: by building the first lunar hotel, GRU Space will outflank the traditional space industry, create the initial spark for a lunar economy, and lay the groundwork for humanity’s multi-planetary future. He frames the project not merely as tourism but as a civilizational necessity—turning the Moon into a stepping stone for permanent, expanding human settlement beyond Earth. The last step in his “Top Secret” GRU Master Plan is humanity becoming a Kardashev Type III civilization! Now we know how he came up with the name!

Leveraging Starship for lunar habitats

Conceptual overview of the lunar Rosas Base derived from a SpaceX Starship tipped on its side and covered with regolith. Credits: International Space University, Space Studies Program 2021 Team*. The name of the base is in memory of Oscar Federico Rosas Castillo

SSP has examined some of the implications of SpaceX’s Starship achieving orbit, such as an imminent tipping point in U.S. human spaceflight and launch policy. We’ve also discussed how if its successful, Starship will bring about a paradigm shift in the settlement of Mars and how the spacecraft could be used to determine the gravity prescription.

During Elon Musk’s recent Starship update from Boco Chica, Texas he said that he was “highly confident” that Starship would reach orbit this year. He also predicted that the cost of placing 150 tons in LEO could eventually come down to as low as $10 million per launch, and that “…there are a lot of additional customers that will want to use Starship. I don’t want to steel their thunder. They’re going to want to make their own announcements. This will get a lot of use, a lot of attention….”

“Once we make this work, its an utterly profound breakthrough in access to orbit….the use cases will be hard to imagine.” – Elon Musk

One such potential use case was worked out in detail by a team* of students last year during the International Space University’s (ISU) Space Studies Program 2021 held in Strasbourg, France. Called Solutions for Construction of a Lunar Base, the project used the version of Starship currently under development by SpaceX for the Human Landing System component of NASA’s Artemis Program as the basis for a habitat on the Moon. The concept was also described in a paper at the 72nd International Astronautical Congress in Dubai last October. The mission of the project was:

“To develop a roadmap for the construction of a sustainable, habitable, and permanent lunar base. This will address regulatory and policy frameworks, confront technological and anthropological challenges and empower scientific and commercial lunar activities for the common interest of all humankind.”

The team did an impressive job working out solutions to some of the most challenging issues facing humans living in the harsh lunar environment like radiation, micrometeorites, and hazardous lunar dust. They also dealt with human factors, physiological and medical problems anticipated under these conditions. Finally, the legal aspects as well as a rigorous financial analysis was conducted to support a business plan for the base in the context of a sustainable cislunar economy. The report is lengthy and challenging to summarize but here are some of the highlights.

A decommissioned Starship forms the primary core component of the outpost having its fuel tanks converted to living space of considerable volume. This has precedent in the U.S. space program when NASA modified an S-IVB stage of a Saturn V to create Skylab. The team envisions extensive use of a MOdular RObotic Construction Autonomous System (MOROCAS) outfitted with specific tools to perform a variety of activities autonomously which would reduce the need for extravehicular activities (EVA) thereby minimizing risks to crew. The MOROCAS would be utilized to tip the Starship on its side, pile regolith over the station for radiation protection and a range of other useful functions.

Medical emergencies were considered for accidents anticipated for construction activities in the high risk lunar environment. The types of injuries that could be expected were assessed to inform plans for needed medical equipment and facilities for diagnosis and treatment.

As discussed by SSP in a previous post, hazards from lunar regolith must be mitigated in for any activities on the moon. The solutions proposed included limiting dust inhalation through monitoring and smart scheduling EVAs, the use of dust management systems utilizing electrostatic removal mechanisms and intelligent design of equipment. In addition, landing sites and travel routes would be prepared either through sintering of regolith or compaction to prevent damage to structures by rocket plumes.

Funding of the Rosas Base was envisioned to be implemented via a public/private partnership administered by an international authority called the Rosas Lunar Authority (RLA). The RLA management would be structured as an efficient interface between participating governments while being capable of responding to policy and legal challenges. It would rely on public financing initially but eventually shift to private financing supplemented by rental of the base to stakeholders and interested parties.

Finally the team examined the value proposition driving establishment of the base. Sociocultural benefits, scientific advancements and technology transfer would be the primary driving factors. Initial market opportunities would be targeted at the scientific community in the form of data and lunar samples. Follow-on commercial activities that would attract investors could include launch services to orbit, cislunar spacecraft services, propellent markets in lunar orbit and LEO, communications networks in cislunar space and commercial activities on the surface such as supplies of transportation and mining equipment, habitats, and ISRU facilities.

The surface of the Moon provides exciting opportunities for scientific experimentation, medical research, and commerce in the cislunar economy about to unfold in the next decade. The unique capabilities of Starship and the solutions proposed in this report support a sustainable business model for a permanent outpost like the Rosa Base on the Moon.

Conceptual illustration of an emerging cisluar economy. Credits: International Space University, Space Studies Program 2021 Team*

An executive summary of the project is also available.

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* ISU Space Studies Program 2021 participants: