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This knowledge base compiles NASA's Moon to Mars Architecture, and the Moon Base that builds on it, into linked pages. Every statement on the content pages cites a source. The current architecture is ADD Rev C (December 2025), its two gap spreadsheets, the 2025 Architecture Update and the Moon Base Users Guide (April 2026). Newer Ignition and Moon Base material is recorded beside Rev C as changes since Rev C; older documents and workshop slides are context, and the pages say what changed. Where the wiki joins two things that no source links, the page says so ("the wiki's join", "the pairing is the wiki's"). The pages below are grouped by kind: the Moon Base; how the architecture is built (framework, objectives, use cases and functions, tenets); its segments, sub-architectures and elements; one page per technology gap and per data gap; and one page per source.

Start here

Page Summary
Overview What the Moon to Mars Architecture is, how it is built, the four kinds of need it publishes (unallocated functions, 57 ranked technology gaps, 25 data gaps, open definition tasks), how the Moon Base and Mars attach to it, what has changed since Rev C, which contradictions between sources are open, and how to find things in this wiki.
Needs, by phase The hub for what the architecture says the Moon Base needs: Phase 1's 31 functional gaps with the elements that perform them and the 17 technology gaps whose traceability names them (the Users Guide cites 4); the guide's 19 technology gaps; Phases 2 and 3 from the fact sheet, Ignition deck 2 and NASA's Moon Base Systems page; needs the sources give with no phase.

Moon Base

Page Summary
Moon Base hub What the Moon Base is, key facts, how the ADD's functions, technology gaps and data gaps feed it (Users Guide), and the Moon Base Program in the Human Spaceflight Mission Directorate (HSMD) since May 2026.
Phases Three phases (Now–2029, 2029–2032, 2032+) with launches, landings, mass to surface and goals; five sets of phase names; Ignition deck 2's per-year tables and "$10 BILLION" per phase, with its own dates; each phase's contents and capabilities in the fact sheet, deck 2 and Moon Base Systems.
Priorities Where the sources state Moon Base priorities: phase goals, Phase 1 functional gaps, technology and data gaps, partnership areas, solicitation areas.
Phase 1 functional gaps 31 ADD functions in seven groups that Phase 1 must close, with architectural value and capability targets; against the ADD's own allocation (the wiki's join), 11 are unallocated and 20 mapped to elements; the guide's FN-P-102 L carries FN-P-202 L's title.
Technology and knowledge challenges The Users Guide's mapping of 19 technology gaps and data gaps DN-001 L to DN-019 L onto two headline and thirteen associated challenges (four cite no data gap), with a reverse index.
Environment South Pole lighting, temperatures, terrain, volatiles, dust and interoperability; NASA's Apollo 17 comparison; points from Moon Base staff, as reported; lava tubes, which no architecture document discusses.
Missions and assets Phase 1 missions (Blue Moon MK1, Griffin-1, IM-3, VIPER, CAPSTONE 02, Blue Ghost M2, MoonFall, LTVs) and the names Moon Base I–III; partner assets in Phases 2 and 3; assets with no phase (the late-2028 landings, PRISM suites, SR-1); the assets in the fact sheet and Ignition deck 2; how they relate to ADD elements.
Surface technology NASA's nine lunar-surface technology areas and projects; the NextSTEP-3 solicitations (LEIA, tied to the Civil Space Shortfalls; Appendix B for "Moon Base architecture gaps"); the lunar 5G contract; the wheel challenge; ground tests at NASA centers, paired with gaps by the wiki.
Mars-forward The Users Guide's seven Mars-forward areas and the Moon Base as "the proving ground for missions to Mars"; SR-1 Freedom and its Skyfall helicopters, from the nuclear fact sheet, Ignition deck 5 and NASA's mission page.

The architecture (ADD Rev C)

How the Moon to Mars Architecture is built, from ADD Rev C (December 2025), read in full, with its companion 2025 Architecture Update, the six ACR25 white papers and the December 2025 lunar and Mars objective decomposition spreadsheets. Where each part of the ADD sits:

  • pp. 1–104 (foundations, segments, sub-architectures, the 15 elements, utilization payloads, and Section 3 on definition tasks, gaps, element pre-formulation and tenets): the framework, segment, sub-architecture, element and tenet pages
  • Appendix A (pillars and objectives): Why Moon to Mars and Objectives
  • Appendix B (use cases and functions): the four list pages; B.3's mappings on each element page; B.5's unallocated functions on Lunar function allocation
  • Appendix C (architecture definition): Key definition tasks and Architecture definition process
  • Appendix D (technology gaps): the Gaps index and the 57 gap pages
  • Appendix E (data gaps): the Data gaps index and the 25 data-gap pages
  • Appendix F (acronyms and terms): the Glossary

Older products (the 2022 objectives, the 2023 strategy document, the 2023 and 2024 executive overviews, the twelve 2024 white papers and the 2024 mapping tables) sit in their own sections on the topic pages, each saying what changed by Rev C.

Page Summary
Glossary ADD Rev C Appendix F in full (112 acronyms, 107 defined terms, the quantity descriptors such as "limited", 100s of kg), compared with other sources' definitions; terms F leaves out, such as "technology gap".
Architecture framework What "architecture" means; why NASA uses segments and sub-architectures instead of a fixed design; definitions; the four segments and 12 sub-architectures by name.
Architecture definition process The annual strategic analysis cycle and Architecture Concept Review; ADD revisions; roadmapping and Appendix C.1; measures of performance and effectiveness; the workshops from May 2023 to Rome 2026; the May 2026 realignment, whose sources don't mention the ADD.
Objective decomposition "Architect from the right": objectives → characteristics and needs → use cases and functions → reference missions and elements; NASA's key terms; Rev A's counts and a requirements flow-down, as briefed in February 2024.
Use cases and functions Appendix B in one page: what B.1 to B.5 hold and where each is in the wiki; how to read an ID such as FN-P-101 L; where the IDs are used; what the lists don't say.
Lunar use cases All 163 lunar use cases (B.2.1) in NASA's wording, by sub-architecture letter, with the technology gaps that cite each (61 are cited).
Lunar functions All 208 lunar functions (B.2.2), with the technology gaps that name each (41) and the Users Guide's 31 Phase 1 functional gaps (10 on both lists).
Mars use cases All 148 Mars use cases (B.2.3), with the functions under each and the technology gaps that cite each (59); changes against the 2024 Mars table.
Mars functions All 263 Mars functions (B.2.4), with their use cases and the technology gaps that name each (40); 63 "(demonstration)" functions; no element mapping yet; changes against 2024.
Key definition tasks Seven legacy decisions and seven completed tasks with Appendix C's reasoning; the table of 71 key definition tasks (67 open); the Mars priority tasks MD-01 to MD-12; MD-02's target-state options, MD-05's crew number (the ADD and Update differ) and MD-07's fission decision, with their papers and briefings.
Why Moon to Mars The three pillars (science, national posture, inspiration); why humans for science; LEO, Moon and Mars compared; four programmatic considerations; the 2023 and 2024 versions.
Lunar site selection Rev C's position (LD-03-L, the South Pole region) and the 2023 "Lunar Site Selection" paper in full: terrain, lighting, Earth visibility, mission availability; what changed by Rev C.
Planetary protection Forward and backward contamination in NASA's terms; why robotic cleanliness rules fail for crews; who is involved; design implications at Mars; where it appears in the architecture (#1202, MD-10, MD-11).

Objectives

Page Summary
Objectives: the ten goals The ten goals and 63 objectives in NASA's wording; how they were developed in 2021–2022; NASA's rationale for each goal; which decomposition sheet holds each objective; the suffixes L, M and LM; the 2023 wording variants.
Lunar objectives All 52 objectives in the lunar decomposition, by goal, with the use cases mapped to each and the data gaps citing each.
Mars objectives The 46 objectives in the Mars decomposition, with the Mars use cases under each; six have none, among them AS-2 LM.
Science objectives and the decadal surveys Appendix C of the 2023 strategy document: 13 science objectives traced to the decadal surveys and other guiding documents; SMD's February 2024 trace of lunar themes to LPS-1 to LPS-3; no counterpart in Rev C.
Lunar characteristics and needs All 133 lunar characteristics and needs (C&Ns) from NASA's 2024 mapping tables, with objectives and use cases: the layer between objectives and use cases that the 2025 products don't print.
Mars characteristics and needs All 115 Mars C&Ns from the 2024 tables, with objectives and use cases; the 49 science-only ones have no use case.
Lunar function allocation Which assets perform which lunar functions: the spreadsheet's allocation (headed "FORWARD WORK", 76 "Unallocated") against ADD Appendix B.3 to B.5; the Phase 1 functional gaps against both (the wiki's join); 2024 against 2025.

Recurring tenets

Page Summary
Recurring tenets The nine cross-cutting principles in NASA's wording, "not ranked"; the assessments at a glance; their 2022–2023 origin.
RT-1 International Collaboration Partners on ESM, Gateway and Japan's rover; joint studies with nine agencies; the 2024 partnerships paper and OIIR's guidelines; NASA's pre-formulation chart for partners, 2024 to 2026; the eight partner posters of February 2026.
RT-2 Industry Collaboration EHP, Gateway, HLS and CLPS partnerships; six future areas; NextSTEP-2 Appendix R (lunar logistics and mobility studies) and the 2026 NextSTEP-3 Appendices A (LEIA) and B (Moon Base Demonstrations).
RT-3 Crew Return Human-rating standards; system capabilities and mission operations for safe return; Mars returns could take months; since Rev C, Artemis III an Earth-orbit test.
RT-4 Crew Time Low-maintenance design, automation, tele-robotics, training; the heading's wording differs from the table's.
RT-5 Maintainability and Reuse Common equipment; robotic maintenance called "an architecture gap"; refurbishment, recycling, disposal.
RT-6 Responsible Use Treaty, policy and Artemis Accords basis; SCALPSS plume data; the 2024 responsible-exploration paper on ethical, legal and societal implications.
RT-7 Interoperability IDSIS, LunaNet and standard interfaces; the nine international standards, with NASA's standards page; open items such as surface docking; the January 2026 workshop's interoperability picture.
RT-8 Leverage Low-Earth Orbit ISS heritage and the move to commercial LEO destinations; the March 2026 ISS-anchored LEO strategy; earlier briefings on LEO and ISS lessons.
RT-9 Commerce and Space Development Six commercial elements; what NASA builds versus buys; NASA as "anchor customer" in a lunar economy.

Segments

Page Summary
Segments The four "broad phases of exploration" plus Future Segments; elements and gap counts by segment; not Moon Base phases; the 2023 and 2024 overviews' text against Rev C.
Human Lunar Return (HLR) First Artemis missions, first landing, initial Gateway; 2 reference missions, 8 elements plus the Gateway Logistics Element; 17 data gaps, no technology gaps; Artemis I–V as planned in 2024 and 2025, since superseded.
Foundational Exploration (FE) Longer stays, rovers, habitat, fission power, Mars analogs; 7 reference missions, all 15 elements; 32 technology gaps; 77 unallocated functions; its gaps and priorities as briefed in February 2024 and 2025.
Sustained Lunar Evolution (SLE) "An open canvas": no functions, missions or elements yet; three notional paths (science, economy, population); kilowatts to megawatts; 46 technology gaps.
Humans to Mars (H2M) First crewed Mars missions; the Mars decomposition; MD-02's three remaining target-state options; 44 technology gaps and 6 Mars data gaps; a hub for the four 2024 Mars white papers and their briefings; NASA's Mars trade space and historical studies pages.

Sub-architectures

"MB" counts the gaps named in the Moon Base Users Guide (near-term).

Page Summary
Sub-architectures The 12 with their decomposition letters (the letter in FN-A-104 L); elements and gap counts for each; how the Users Guide's seven Phase 1 groups map to them.
Autonomous Systems and Robotics (A) Crew–robot teaming, uncrewed operations, reconnaissance. No element; 13 technology gaps (the most), 6 MB.
C&PNT Systems (C) Data flows, PNT and lunar time traceable to UTC; SCaN networks; 4 technology gaps, 2 MB; the FE C&PNT white paper (25–50 m navigation need) and the 2024 reference-frames paper (Mean Earth endorsed; Rev C names no frame).
Data Systems and Management (D) Avionics, software, data models, environment-tolerant hardware. No element; 5 technology gaps, 1 MB.
Habitation Systems (H) Controlled environments for crew health. Gateway, Initial Surface Habitat; 11 technology gaps, 3 MB.
Human Systems (X) Crew, ground teams, human factors, certification. No element; 11 technology gaps, none MB; the February 2024 health and performance briefing (five hazards, 32 risks).
Infrastructure Support (G) Ground processing, shared surface equipment, prepared regolith. Exploration Ground Systems; 7 technology gaps, 2 MB.
ISRU Systems (I) Products from local resources. No element performs any of the 15 ISRU functions (all unallocated in B.5); 7 technology gaps, 5 MB; the 2024 Mars ascent-propellant paper.
Logistics Systems (L) Packaging, staging, transfer, waste. Gateway Logistics Element; 7 technology gaps, 4 MB; the February 2024 logistics briefing (about 500 to 3,000 kg for 2 to 4 crew over 7 to 28 days).
Mobility Systems (M) Suits, rovers, hauling up to 15 tons. EVA, LTV, LUR, Pressurized Rover; 11 technology gaps, 7 MB; the 2024 mobility paper (500–15,000 kg up to 5,000 m) and the February 2024 surface EVA briefing.
Power Systems (P) Generation, distribution, storage; a possible lunar grid. Fission system; 5 technology gaps, 3 MB; the lunar power white paper (self-sufficient elements first, then external power; nuclear versus solar).
Transportation Systems (T) Launch to re-entry. Six elements; 7 technology gaps, 1 MB; the 2024 cargo paper (a 500–12,000 kg lander gap) and Mars EDL paper (human-scale landers of 26–36 t).
Utilization Systems (U) Systems "primarily" for science and other utilization. No element; 2 technology gaps; 21 U functions unallocated; the 2024 priority-science paper and SMD's briefings.

Elements

Page Summary
Elements Key terms; "only funded elements"; how a new element gets in (pre-formulation); the 15 with sub-architecture, segments and function counts; Moon Base links at a glance; utilization payloads and equipment; changes since Rev C.
Commercial Lunar Payload Services (CLPS) Commercial lunar delivery, the element the Moon Base sources lean on most; its B.3 functions; NASA's CLPS figures before and since Rev C (CLPS 2.0 capped at $6 billion, up to 30 landings from 2027); Ignition deck 2's CX-2 and CS-8; the July 2025 timeline graphic; in the Moon Base Program since May 2026.
Exploration EVA System (xEVA) Next-generation lunar suit, life support and tools; Axiom's AxEMU; Artemis III now an Earth-orbit test, with AxEMU lander interfaces to evaluate.
Exploration Ground Systems (EGS) Kennedy ground processing and launch for SLS and Orion; Mobile Launcher 2 for Block 1B; changes to Mobile Launcher 1 for the Centaur V under assessment.
Gateway The NRHO outpost: two configurations, seven components and partners; paused "in its current form" since March 2026, its PPE repurposed for SR-1 and its "surface relevant scope" moved to the Moon Base Program; earlier plans as briefed in 2024 and 2025.
Human Landing System (HLS) Crew lander, Starship and Blue Moon; Artemis III an Earth-orbit test and the first landing on Artemis IV in 2028; landings every six months after Artemis V; cargo-capable landers in Moon Base Phase Three; the May 2026 Artemis III plans; earlier plans as briefed in 2024 and 2025.
Human-Class Delivery Lander (HDL) Large uncrewed cargo lander (Pressurized Rover, habitats, power); how the ADD sizes CLPS, HDL and the cargo lander; "HDL Programs" in the fact sheet and Ignition deck 2, matched by the wiki.
Initial Surface Habitat Two crew, 7–33 days, design not final; 23 B.3 functions, 9 of them Phase 1 functional gaps; the Ignition material's habitats, recorded without a match; "up to 4 surface crew" in a February 2025 briefing.
Lunar Nuclear Fission System Added in 2025: power augmentation for lunar winter and ISRU, and Mars-forward; three functions, all Phase 1 functional gaps (the wiki's join); Lunar Reactor-1 (LR-1), "ready for launch by 2030", after SR-1; reactor power in Ignition deck 2's Phases 2 and 3.
Lunar Surface Cargo Lander "Moderate amounts of cargo", smaller than HDL, with no capacity in Rev C; added in Rev B after a 2024 paper found a 500–12,000 kg lander gap; "on the order of 2 tons" in a February 2025 briefing.
Lunar Terrain Vehicle (LTV) Unpressurized rover for two suited crew, also a relay; Astrolab's and Lunar Outpost's rovers selected in May 2026; the contract's change to simpler one-year Phase 1 rovers; figures from Ignition and Moon Base Systems (open question 82).
Lunar Utility Rover Uncrewed rover moving "thousands of kg", new in Rev C for "autonomous lunar surface mobility"; six functions, four of them Phase 1 functional gaps (the wiki's join); not the Users Guide's "small utility rovers".
Orion Spacecraft Crew vehicle: Crew Module, ESA-built service module, abort system; Artemis II flew in April 2026; docking with the landers and an upgraded heat shield on the Artemis III Earth-orbit test.
Pressurized Rover JAXA/Toyota rover, two crew, 28-day missions ("up to 30 days" on Moon Base Systems; open question 97); JAXA's rover in Moon Base Phase Two (the wiki's match); 21 B.3 functions; figures briefed at Ignition.
SCaN Networks NSN, DSN and LCRNS; LunaNet and lunar time; service volumes; the Altus-1 relay and NavCube3-mini; communications and PNT by Moon Base phase in Ignition deck 2 and Moon Base Systems; CAPSTONE's tests and the lunar 5G contract; SCaN in RTMD since May 2026.
Space Launch System (SLS) Five variants from Block 1 to Block 2 Cargo; since Rev C, the Centaur V in place of the Exploration Upper Stage on a standardized Block 1, and a spacer in place of the ICPS on Artemis III.

Technology gaps

From the tech gaps spreadsheet (December 2025). All 57 gaps have a page. ADD Rev C's Appendix D prints the same tables; all 57 match the sheet field for field, with one print difference (#0102) and one content difference (#1107, a function ID), and each gap page cites its ADD page. Rating 1 is the highest priority (ADD Rev C, Section 3.2). "MB" means the gap is named in the Moon Base Users Guide (near-term): one of the guide's challenges for "near-term Moon Base development", whose work starts in Phase 1 to enable Phases 2 and 3.

Rating (bin) Page Summary
all Gaps index What a technology gap is; the 13 fields of a gap table; how NASA prioritizes them (criticality, urgency, breadth, depth; no cost); what Rev C changed; all 57 by rating with destination, segments, sub-architectures and Moon Base flag; the ADD's tables against the sheet; expanded "All FN" entries; Rev B's ranked list of 56 against Rev C; the Mars Campaign Office's priority areas (the wiki's title match).
1 (1) #0801 Lunar Dust-Tolerant Systems and Dust Mitigation Dust-tolerant thermal, power, EVA, rover, seal and habitat systems. MB
2 (1) #0201 Extreme Environment Avionics Avionics that survive radiation, cold, dust and vacuum. MB
3 (1) #0301 Systems to Survive Extended Lunar Shadow Survive 350+ h of continuous shadow, several times a year for 10 years; "150 (TBR) hours" in Rev B, as briefed in February 2025. MB
4 (1) #1107 Cryogenic Fluid Transfer Low-loss cryogenic transfer in space and on surfaces. The ADD and the sheet pair UC-U-501 M with different functions.
5 (1) #0103 Surface-to-Surface Communications 3GPP/Wi-Fi surface networks, 25–50 Mbps within 10 km. MB. The 2026 lunar 5G contract and the student lander communications challenge, paired by subject (the wiki's).
6 (1) #1104 Mars Transportation Propulsion NTP, NEP, chemical, SEP options for Earth–Mars transfer. Mars only.
7 (2) #0806 Payload Offloading, Handling, and Manipulation Robotic handling of 100s–1000s kg cargo. MB
8 (2) #0805 Autonomous Surface Mobility and Navigation Autonomous driving; FE target 1050 km/year uncrewed.
9 (2) #0305 Food and Nutrition Shelf life, variety and food production for long missions.
10 (2) #1103 Mars Entry, Descent, and Landing Landing 25–75+ t payloads on Mars. Mars only.
11 (2) #0304 Habitat Environmental Monitors In-situ water, air, microbial and acoustic monitoring.
12 (2) #1105 Mars Ascent Propulsion Engines for crew ascent from Mars. Mars only.
13 (2) #0901 Scalable Lunar Surface Power Generation Nuclear, solar, fuel cell and storage at the South Pole. MB
14 (2) #1001 High-performance Actuators, Sensors, and Interfaces Robust robotic sensors, end effectors and perception. MB
15 (2) #0807 Docking and Berthing between Surface Elements Dust-tolerant pressurized mating between surface elements. MB
16 (3) #0303 Dormancy Recovery for Habitat Water Water systems that survive uncrewed periods.
17 (3) #0307 Radiation Monitoring and Forecasting SPE forecasting with hours of warning; GCR forecasting.
18 (3) #1003 Fault/Anomaly Diagnosis, Decision Support, and Response Onboard fault management without ground support.
19 (3) #0804 Robotic and Mobility Systems in Extreme Cold Robots and rovers in PSRs at ~20–30 K. MB. Glenn's LESTR cold rig (40 K), paired by subject (the wiki's).
20 (3) #0101 PNT for Lunar Surface Extreme Environments Absolute localization to 10 m (3σ); timing. Its 2024 form had another title and "TBD meters". MB
21 (3) #0702 Waste Management Waste processing and resource recovery.
22 (3) #0302 Fire Safety Upgrades Fire safety at 8.2 psia, high oxygen, partial gravity.
23 (3) #0701 Packing, Transport, and Use of Conditioned Supplies Conditioned, reusable logistics carriers. MB
24 (3) #0903 Power Management and Distribution km-scale multi-kW PMAD; FE target 20 kW between elements. MB (four challenges)
25 (3) #0808 Relocation of Large Assets Moving >6 t assets across the lunar surface.
26 (3) #0202 High-Performance Onboard Computing Rad-tolerant high-performance processors and storage.
27 (3) #1101 Lunar Precision Landing and Hazard Avoidance 50 m landing accuracy in any lighting, with PSI. MB
28 (3) #1005 Safe Human-Robot Interaction and Teaming Crew and robots working together safely.
29 (3) #0505 In-Situ Additive/Subtractive Construction Building pads, paths and walls from regolith; new in Rev C. MB
30 (3) #0504 Autonomous Lunar Surface Structure Assembly and Construction Robotic assembly of towers, walls and shelters; TRL 4 today; new in Rev C. MB (solar power)
31 (4) #0803 EVA and IVA Suits for Mars Missions Suits for Mars gravity and atmosphere; xEMU depends on vacuum. Mars only.
32 (4) #1106 Cryogenic Fluid Storage Long-duration storage with minimal boil-off; propellant gauging.
33 (4) #1004 Trustworthy Autonomy for Planning and Decision-making Onboard planning and decisions that can explain themselves.
34 (4) #1002 Autonomous Monitoring Monitoring crew and vehicle health without the ground.
35 (4) #0802 Mars Dust-Tolerant Systems and Dust Mitigation Martian dust and dust storms; inhalation risk. Mars only.
36 (4) #0501 Robotic Inspection, Maintenance, and Repair Robotic IM&R without crew; no child gaps of its own.
37 (5) #1102 Mars Precision Landing and Hazard Avoidance ~100 m landing accuracy for human-class vehicles. Mars only.
38 (5) #1201 In-Situ Sample Storage and Processing Refrigerated to cryogenic sample storage; ranges still TBR.
39 (5) #0402 Sensorimotor Countermeasures Gravity adaptation; "no effective sensorimotor countermeasures" today.
40 (5) #0401 Crew Exercise Countermeasures Lighter exercise systems for surface EVA readiness.
41 (5) #0403 Physiological Countermeasures Neuro-ocular, immune and infection countermeasures.
42 (5) #0404 Behavioral Countermeasures Behavioral health without ground support or resupply.
43 (5) #0406 Spacesuit Physiology EVA injury prevention, pre-breathe, suited health monitoring.
44 (5) #1202 Planetary Protection Technologies Measuring and controlling crew-borne contamination at Mars. Mars only.
45 (5) #0902 Scalable Mars Surface Power Generation Multi-kWe power on Mars; Users Guide says fission is selected. Mars only.
46 (5) #0405 Exploration Medical Capabilities Crew-led diagnosis and treatment without real-time ground support.
47 (5) #0308 Radiation Countermeasures SPE and GCR shielding and biomedical countermeasures.
48 (5) #0104 Earth-Independent Surface PNT PNT on Mars through delays and blackouts. Mars only.
49 (6) #0306 Advanced Structures and Materials for Habitats Inflatables, composites, light metals; thresholds TBR.
50 (6) #0503 Transfer of Earth-Storable Propellants Hypergolic and EP propellant transfer; TRL 2–3 at scale.
51 (6) #0102 Deep Space Communications High-bandwidth Mars–Earth links and timing. Mars only.
52 (6) #0606 Mars ISRU Oxygen, methane and water from Mars resources; MOXIE at subscale. Mars only.
53 (6) #0605 Lunar Regolith Excavation, Manipulation, and Transportation Digging and moving regolith; IPEx. MB (regolith, ISRU)
54 (6) #0601 Oxygen Extraction from Lunar Regolith ~250 kg O2/year; CaRD at TRL 5/6. MB (ISRU)
55 (6) #0603 Water Recovery from Lunar Regolith/Ice ~700 kg water/year, including in PSRs. MB (ISRU)
56 (6) #0604 Metal Extraction from Lunar Regolith Metals for manufacturing feedstock; TRL 4. MB (ISRU)
57 (6) #0502 In-situ Manufacturing of Spares, Repairs, and New Parts On-demand parts and tools; lowest-rated gap. A Glenn bio-plastic with regolith, paired by subject (the wiki's).

Data gaps

From the data gaps spreadsheet (December 2025). All 25 have a page. The list is not prioritized. All 19 lunar data gaps are named in the Moon Base Users Guide (near-term); the 6 Mars gaps are not tied to the Moon Base. ADD Rev C's Appendix E prints the same 25 records, and each page cites its ADD table: 23 match the sheet field for field, and two differ (DN-016 L's data type; one reworded sentence in DN-007 L).

Page Summary
Data gaps index What a data gap is ("even partially addressing" one is valuable); the Appendix E fields against the Key sheet's; five replace former technology gap #0602; all 25 with need driver, data type, segment, objectives and Moon Base challenges; missions and payloads measuring the same things (the wiki's matching); objective reverse index; the January 2026 workshop briefing.
DN-001 L Sub-meter imaging of South Pole sites Orbital images <0.5 m/pixel, at least weekly for a year; the white paper's worked example.
DN-002 L High-fidelity elevation maps DEMs <1 m/pixel, <0.1 m height error, 84°S–90°S.
DN-003 L Time-resolved thermal mapping Thermal maps <50 m; today Diviner at 240 m/pixel.
DN-004 L Imaging missions in progress Quick orbital images <1 m/pixel of landed elements and surface disturbance.
DN-005 L Surface panoramas of real lighting 360° images from the surface to check illumination models; feeds solar power.
DN-006 L Orbital mapping of water ice Regional water ice maps <10 km, 1 wt%; FE segment.
DN-007 L In-situ water ice Ground truth to 1 m depth in 20 cm steps; "no ground truth measurements" today.
DN-008 L Regolith geotechnical properties Particle size, density, bearing capacity, cohesion to ~3 m; five Moon Base challenges.
DN-009 L Regolith electrostatic properties Chargeability, resistivity, charge decay; six Moon Base challenges.
DN-010 L Regolith composition Elemental and mineral make-up to 0.1 wt%, with depth.
DN-011 L Surface plasma Plasma and surface potential, 0–30 keV; electrostatic discharge risk.
DN-012 L Surface radiation and space weather Neutrons to 100 MeV; regolith neutrons up to ~30% of crew dose.
DN-013 L Other near-surface volatiles Non-water volatiles to 1 m, 0.1 wt%; possible toxic or corrosive release.
DN-014 L Sub-meter rocks Rock and particle sizes 10 μm–1 m, below orbital resolution; tip-over hazard.
DN-015 L Meteoroid ejecta Ejecta speed 0.1–4.8 km/s, mass, direction, frequency. The mass range is plain text in NASA's spreadsheet, "10-6 - 102 g" (cell H16); 10⁻⁶ to 10² g is the wiki's inference.
DN-016 L Seismic activity Moonquake baseline at several sites; young thrust faults at the South Pole. The ADD and the sheet give different data types.
DN-017 L Plume ejecta particle velocity PSI ejecta sizes, speeds and angles; SCALPSS flew on Blue Ghost. Langley's 2026 plume-surface ground tests, paired by subject (the wiki's).
DN-018 L Landing-site alteration Topography before, during and after landing at cm–m scale.
DN-019 L Dust flux and charge Charge and flux of dust hitting hardware; six Moon Base challenges.
DN-001 M Mars geotechnical properties Regolith, rock and bedrock; Mars counterpart of DN-008 L.
DN-002 M Mars water content Ice and hydrated minerals at sites; framed around landing.
DN-003 M Mars surface weather Pressure, wind, dust at the surface; Mars GRAM weak there.
DN-004 M Mars EDL atmosphere Atmosphere at human-class EDL altitudes; risks "may not be able to close".
DN-005 M Mars plume ejecta Mars counterpart of DN-017 L, plus local atmospheric density.
DN-006 M Mars landing-site alteration Mars counterpart of DN-018 L, at cm scale or better.

Sources

All sources (generated from the download records): every document and web page read, with its NASA address, download time and SHA-256 fingerprint, and the documents listed on the architecture site but not read. Each source below has its own page: date and version, contents, what the PDF shows that the text loses, what changed by Rev C, and oddities as printed.

The current architecture (December 2025)

Page Summary
ADD Rev C (Dec 2025) The Architecture Definition Document, ESDMD-001 Rev C, released 12/12/2025: what it is and is not, revision history, contents by page with where each part sits in the wiki, changes since its release, slips by section.
2025 Architecture Update (Dec 2025) 20-page companion to Rev C: the "contracted baseline" caveat; two new elements; Mars crew reasoning (differs from the ADD on six); technology-gap changes; standards by year; the six 2025 white papers; 2026 focus areas. Cites PDF pages, one above printed.
Tech gaps spreadsheet (Dec 2025) The 57 architecture-driven technology gaps with targets, child gaps, traceability, segments and priority; column guide and caveats; compared with ADD Appendix D.
Data gaps spreadsheet (Dec 2025) The 25 architecture-driven data gaps (19 lunar, 6 Mars); Key-sheet definitions, segment codes, no priority field; compared with ADD Appendix E.
Lunar objective decomposition (Dec 2025) 18-sheet workbook: objectives → use cases → functions → assets, as "HLR" and "FE+"; its key; missing sheets; an allocation headed "FORWARD WORK" that matches ADD B.3 to B.5 closely.
Mars objective decomposition (Dec 2025) 7-sheet workbook: 46 objectives → 148 use cases → 263 functions, with no allocation to elements; missing C&N sheets; Mars groups its key doesn't name.
ACR25 data-gaps white paper (Dec 2025) What a data gap is, knowledge decomposition, partner data, how the list will change; data utility of four gaps.
ACR25 "Architecture Definition" white paper (Dec 2025) Six guiding questions; roadmapping definition tasks; Table One of Mars tasks MD-01 to MD-12, four closed; supersedes two 2022–2023 papers.
ACR25 "Why Moon and Mars?" white paper (Dec 2025) Crawl-walk-run; distance, gravity, hazards; four programmatic considerations; compared with ADD Section 1.3.1.
ACR25 lunar power white paper (2025) "Integrated Lunar Power Strategy Considerations": the strategy still to come, its figures and takeaways, a future "integrated surface power element".
ACR25 planetary protection white paper (2025) "Architecture-Driven Planetary Protection Considerations": Mars-focused; Table One's forward and backward grouping; the same policy documents as #1202.
ACR25 FE C&PNT white paper (2025) "Communications and Navigation Needs for the Foundational Exploration Segment": the ADD's p. 67 figure, three notional charts, 3GPP and 802.11, a 25–50 m navigation need against #0101's 10 m.

Earlier architecture products (2022–2024)

Page Summary
Moon to Mars Objectives (Sep 2022) The source of the objectives: 63 under ten goals in four categories, the nine tenets, five method principles, a 15-term glossary; Rev C and the 2025 lunar sheet print its wording word for word.
Strategy and Objectives Development (2023) 78 pages by NASA's Federated Board: why go, five principles, how the objectives were made, a rationale for each goal; appendices on benefits, the development process and the decadal surveys. Printed page numbers one lower than PDF.
2023 Executive Overview (Jan 2024) Ten-page summary of the 2023 review: pillars, key terms, segments, the four new sub-architectures, the 13 white papers of 2023, six elements added in 2023, element initiation, the annual cadence.
2024 Executive Overview (Dec 2024) Summary of the 2024 review, after Rev B: accomplishments, the 12 white papers, the "Lunar Coffee Maker" pre-formulation example, #0101 in its 2024 form, the "Priority Decisions" chart, the Mars power decision.
Lunar Objective Mapping Tables, 2024 NASA's Rev B-era lunar workbook: 53 objectives → 133 C&Ns → 162 use cases → 206 functions, with an HLR and FE allocation; what changed by December 2025.
Mars Objective Mapping Tables, 2024 The Rev B-era Mars workbook: 46 objectives → 115 C&Ns → 113 use cases → 218 functions, science objectives "NOT YET … DECOMPOSED"; what changed by December 2025.
ACR24 "Lunar Mobility Drivers and Needs" (2024) Moving cargo from landers to points of use: 500–15,000 kg over up to 5,000 m, against the LTV's 800 kg; figures read from the PDF; what changed by Rev C.
ACR24 "Lunar Surface Cargo" (2024) Cargo demand against 2024 landers: a 500–12,000 kg gap; lander capacities; eight potential South Pole landing regions; a cargo reference mission promised for Rev B.
ACR24 "Lunar Reference Frames" (2024) Mean Earth and Principal Axis frames; five considerations; a working group's endorsement of Mean Earth for initial surface operations; Rev C names no frame.
ACR24 "Architecture-Driven Technology Gaps" (2024) The first published gap list (Rev B): 56 gaps and its five highest; technology push and pull; gaps and STMD shortfalls; little changed by Rev C.
ACR24 "Priority Science Objectives Enabled through NASA's Moon to Mars Architecture" (2024) Lunar planetary science: six challenges tied to LPS codes; what changed by Rev C (science mapping still forward work).
ACR24 "Humans in Space to Accomplish Science Objectives" (2024) What astronauts add to science; the four reports it quotes; the decadal's themes behind LPS-1 to LPS-3.
ACR24 "International Partnerships" (2024) NASA's pre-formulation process with partner and industry lanes (Figure 2, transcribed); "architecture gaps" defined; what changed by Rev C.
ACR24 "Responsible Exploration" (2024) Ethical, legal and societal implications (ELSI) of the architecture; what changed by Rev C.
ACR24 "Mars Crew Complement Considerations" (2024) What drives the number of crew to Mars vicinity and surface; three concepts of operations; no number; it prepared MD-05 and MD-06.
ACR24 "Mars Surface Power Technology Decision" (2024) Fission chosen as the primary Mars surface power technology (MD-07): how and why; at least 10 kW for two crew up to MW-class; the Moon as a testbed.
ACR24 "Mars Entry, Descent, and Landing Challenges" (2024) Why heritage Mars EDL doesn't scale to human landers; landing ellipses and a table of eight EDL systems, transcribed from the PDF.
ACR24 "Mars Ascent Propellant Considerations" (2024) ISRU or Earth-origin propellant for Mars ascent: three studies, three bands of options, three driving factors, no decision.

The Moon Base Users Guide and Ignition (March–April 2026)

Page Summary
Moon Base User's Guide (Apr 2026) NASA's bridge from the ADD to the Moon Base: phases, Phase 1 functional gaps, technology and data gaps, Mars-forward, partnerships.
Going back to the Moon (24 Mar 2026) The Ignition fact sheet on the Artemis restructuring: Artemis III an Earth-orbit test, the landing in 2028 on Artemis IV, Moon Base construction starting with robotic landings.
Going back to the Moon, Ignition copy The same PDF under a second address (same size and SHA-256); a pointer page.
Ignition fact sheet, 24 Mar 2026 A bullet version of the Ignition release; its differences: phase names, Artemis III to dock "with one or both" landers, MoonFall and CADRE among CLPS payloads.
Building the Moon Base fact sheet, 24 Mar 2026 The three phases with dates, a third set of names, contents and cargo (Phase 1 up to 25 missions and four tons; Phase 2 up to 60 tons; Phase 3 up to 38 tons a year); commercial and partner roles.
Nuclear power fact sheet, 24 Mar 2026 SR-1 Freedom (December 2028, the PPE bus, over 20 kWe) to retire nuclear flight risk before Lunar Reactor-1 lands in 2030 "to keep the Moon Base operating through periods of darkness".
Science fact sheet, 24 Mar 2026 Moon and Mars points: science for the Moon Base, MoonFall, LuSEE-Night, VIPER, "30 robotic lunar landings within three years, starting in 2027".
LEO fact sheet, 24 Mar 2026 The ISS-anchored transition to commercial stations; no Moon or Mars content; RT-8's subject (the wiki's pairing).
Ignition deck 1, "Returning to the Moon" (Mar 2026) ESDMD's 21-slide Artemis briefing: hardware status, notional plans for the 2027 Earth-orbit test and the 2028 South Pole landing, the Centaur V on a standard Block 1 SLS. A "Pre-Decisional --- CUI" line sits in its text layer, not on the slides; NASA posts the deck publicly and the wiki cites it like any other source.
Ignition deck 2, "Building the Moon Base" (Mar 2026) The Moon Base Program's 65-slide briefing: Gateway "not required"; the three phases under a fifth set of names, with per-year tables and "$10 BILLION" per phase; key missions with specs; capability tables by phase for communications and PNT, power, mobility, habitation and logistics; a 2026 procurement timeline.
Ignition deck 3, "Staying in Low Earth Orbit" (Mar 2026) The LEO Program's briefing on replacing the ISS; no Moon or Mars content; the core-module plan as an "alternate" option, "$250 million per year through end of ISS".
Ignition deck 4, "Science as Only NASA Can" (Mar 2026) SMD's picture deck; eight Moon slides: "Moon Base Science", Blue Ghost Mission 1's instruments, Intuitive Machines' south polar payloads, the payloads RFI.
Ignition deck 5, "America Underway in Space on Nuclear Power" (Mar 2026) The Space Reactor Office's briefing on SR-1 Freedom and Skyfall; "Fly, learn, build forward": LR-1 in 2030 with its trades reopened; "100s kWe to MW-class" in the 2030s.
Ignition deck 6, "NASA Inspires" recap (Mar 2026) The event's closing deck: workforce and outreach, and a one-line recap of each announcement.
Ignition page The Ignition event's hub (undated): links to six fact sheets and five decks, and the RFIs and RFPs that followed (commercial human lunar transport, CLPS 2.0, Moon Base Capabilities, LTV Services, CLPS CX-2 and CS-8).
Ignition release, Mar 2026 The 24 March announcement: three Moon Base phases, partner habitats and a utility vehicle in Phase Three, Gateway paused "in its current form", landings every six months after Artemis V, up to 30 CLPS landings from 2027, SR-1 Freedom.

Architecture workshops

January and February 2026

Page Summary
2026 industry and academia workshop deck (Jan 2026) "Charts for Distribution" from the 21–22 January 2026 workshop (50 slides): Rev C and the Update as briefed, plus newer items: a NextSTEP "Appendix B" industry day, a fission surface power quiet period, nine international standards named, MD-05's third wording, the data-gaps briefing. Never says "Moon Base".
2026 international partners workshop deck (Feb 2026) "Selected charts" from the Rome workshop of 24–25 February 2026, co-hosted with ASI: a near-copy of the January deck, and what differs (fireside chats, a Rev B page, the pre-formulation chart for elements).
Partner posters, Feb 2026: ASA · ASI · CNES · ESA · GISTDA · KASA · LSA · UKSA Eight agencies' posters from the Rome workshop, each the agency's own material and attributed to it: rovers, habitats, oxygen extraction, derisking demonstrations, lunar orbiters and landers. None says "Moon Base".

February 2025 (after Rev B, before Rev C; most decks were shown at both the industry and academia workshop and the international partners workshop, and where a copy exists it is listed beside the primary)

Page Summary
Architecture Updates deck, Feb 2025 · industry and academia copy The opening briefing: Rev B's new pages and appendices, decomposition updates, the habitat's "up to 4 surface crew" and the cargo lander's "on the order of 2 tons", 56 gaps, NextSTEP-2 Appendix R, the 2024 workshops' feedback.
Architecture 101 deck, Feb 2025 · international copy An introduction after Rev B: pillars, goals, segments, sub-architectures, elements on a notional timeline, the partner pre-formulation chart, all 31 white papers of 2022–2024 by focus.
Foundational Exploration gaps deck, Feb 2025 · international copy A four-office panel: ESDMD's "Architecture Gap Definition", a South Pole power-sharing example, 11 high-priority and 16 secondary "integrated gaps" for Foundational Exploration; STMD's top 30 shortfalls; the LEO Microgravity Strategy.
Program Office updates deck, Feb 2025 · international copy Artemis I to V as planned in February 2025, since superseded; hardware photos; the Pressurized Rover agreement with Japan.
Paths to Partnership deck, Feb 2025 Five offices on how industry and academia can work with them: the pre-formulation chart as "Partner Path to Infusion into Artemis Enterprise", procurement routes, STMD's structure, CLPS figures, the Mars Campaign Office's "Priority Development Areas".
International Partnerships deck, Feb 2025 OIIR's guidelines for partners (each funds its own part; generally no joint technology development) and two cooperation models; the pre-formulation chart; CLPS for partners.
Technology gaps briefing, Feb 2025 · international copy The 2024 technology-gaps paper as briefed, with Rev B's whole ranked list of 56 and #0301's Rev B table ("150 (TBR) hours").
Lunar logistics, mobility and cargo briefing, Feb 2025 · international copy The 2024 cargo and mobility papers briefed together: capability gaps in logistics and uncrewed mobility, Rev A's cargo functions, the LTV's uncrewed "800 kg (full performance)".
Mars surface power briefing, Feb 2025 · international copy The working behind MD-07: ten attributes scored, options dropped, solar against fission mass, a scoring against measures of effectiveness.
Mars crew complement briefing, Feb 2025 · international copy The 2024 crew paper as briefed; no number; a figure of five hazard groups and four discussion prompts.
Mars EDL briefing, Feb 2025 STMD's briefing of the 2024 EDL paper in the partners' "Mars Room"; no industry copy; the paper's text and Figure 5 only.
"Human Exploration Enables Science" briefing, Feb 2025 · international copy SMD's briefing of the 2024 humans-in-space and priority-science papers; adds almost nothing to them.
Panels and roundtables, Feb 2025 · international partners Title cards only: the 13 industry and academia sessions and the 6 partner sessions, with rooms and speakers.

February 2024 (after Rev A, before Rev B; the white-paper briefings brief 2023 papers, of which the wiki holds one, "Lunar Site Selection")

Page Summary
Overview and Updates deck, Feb 2024 The opening briefing: Rev A's decomposition changes in numbers, a seventh "New Elements" hexagon (the UAE's airlock), "nearly 90" Mars decisions behind the first seven, the forward work for 2024.
Program Office updates deck, Feb 2024 Artemis I to V as planned in February 2024; a requirements flow-down for "UC-001-L"; "HLS Uncrewed Mission Milestones".
Mission Directorate Panel deck, Feb 2024 ESDMD, SMD, STMD and SOMD: SMD's "1:1 trace" of lunar themes to LPS-1 to LPS-3; STMD's investment checks against the LI objectives; SCaN's lunar navigation system for "10-m surface positioning".
Element initiation breakout deck, Feb 2024 Element initiation's purpose and approval; the earliest pre-formulation charts, for partners and for industry; "SAO leads architecture and strategy until acquisition strategy".
Foundational Exploration breakout, Feb 2024 Six priorities for the segment, three kinds of lunar infrastructure, nine "technical advancements", and a surface map of Wi-Fi and EVA ranges.
Technology and infrastructure breakout, Feb 2024 STMD's slides: the LIFT-1 RFI on oxygen extraction, the Lunar Surface Innovation Consortium, lunar surface power investments, nuclear propulsion partners.
Mars science and architecture breakout, Feb 2024 Mars science drivers (a National Academies study, a MEPAG Tiger Team), crew health research, three Mars science objectives and six crew health and performance objectives.
Human health and performance briefing, Feb 2024 Five hazards with 32 human system risks, and what medical systems, vehicles, ECLSS and suits must provide.
Mars decisions briefing, Feb 2024 "Key Mars Architecture Decisions": "Nearly 100 key architecture decisions" and the seven priority decisions, one slide each.
Mars challenges briefing, Feb 2024 Three 2023 papers (abort, round-trip mass, communications disruption): trajectories, Mars landers from Viking to Perseverance, a human-class lander concept of 36,000–40,000 kg.
ISS lessons briefing, Feb 2024 "Exploration Lessons Learned from the Space Station": six lesson areas, ECLSS figures, navigation demonstrations; RT-8's subject (the wiki's pairing).
Lunar logistics briefing, Feb 2024 "Lunar Logistics Drivers and Needs": six categories of logistics items, four drivers, totals for 2 and 4 crew, "Water, gases, and food dominate".
In situ vs sample return briefing, Feb 2024 In situ analysis against returned samples: "case-by-case", and an "integrated strategy" of both.
Surface EVA drivers briefing, Feb 2024 "Surface EVA Architectural Drivers": 260+ ISS EVAs against Apollo's 14 surface EVAs, and ten "Key Considerations".
Lunar Site Selection, 2023 paper (filed Feb 2024) Not a briefing: the 2023 white paper itself, the only one of the thirteen 2023 papers held; its content is on Lunar site selection.

Moon Base web pages and releases (2025–2026)

NASA's hub and reference pages first (most undated), then dated items by month.

Page Summary
Moon Base landing page NASA's Moon Base hub page and news list.
Moon Base Phases page Phase names, dates and named Phase 1 and Phase 2 assets.
Moon Base Systems Five systems by phase (mobility; communications and PNT; habitation; power; logistics), close to Ignition deck 2; LTV and pressurized rover figures; "up to eight metric tons per 28-day mission".
Moon Base encyclopedia entry Overview, leadership, 2026 history of announcements.
The Lunar South Pole Region Light, volatiles, terrain and dust at the Moon Base site.
From Apollo to Artemis (environment visualization) Undated interactive comparing an Apollo 17-like site with Artemis sites; why the South Pole.
Lunar Surface Technology Nine technology areas and projects for the lunar surface.
Moon Base Solicitations The Lunar Surface Technologies solicitation (five areas), with pointers to its own pages.
Moon Base Media Resources Press list of the Ignition briefing and the 2026 updates and releases; used for dating.
Carlos García-Galán · Jim Geffre · Nujoud Merancy Staff pages of the Moon Base Program Manager, Deputy Program Manager and Chief Architect.
CLPS page NASA's CLPS hub (undated): 17 deliveries to five vendors, $2.6 billion through November 2028, against the ADD's 15 task orders.
Artemis page NASA's Artemis hub (undated): Artemis I to V; still calls Gateway "central" (open question 79).
Space Reactor-1 Freedom page "Prove fission surface power technology for NASA's Moon Base": 12,000 kg, HALEU, 20 kWe, the PPE bus, six objectives, launch "late 2028".
CLPS timeline graphic, Jul 2025 NASA's "Timeline of Past and Future CLPS Deliveries", older than Rev C: four flown and seven planned deliveries, read from the image.
Artemis III plans, May 2026 The 2027 Earth-orbit test: SLS with a spacer, Starship and Blue Moon "pathfinder" landers, a docking demonstration, an upgraded heat shield.
LESTR lunar-night test rig, May 2026 Glenn's cryocooler rig to 40 K for materials and hardware; #0804's subject (the wiki's pairing).
Moon Base rovers and landers release, May 2026 Moon Base I, II and III; LTV awards to Astrolab and Lunar Outpost; Blue Origin's delivery task orders; CLPS 2.0; MoonFall.
Realignment release, May 2026 22 May 2026: ESDMD and SOMD unified as HSMD, ARMD and STMD as RTMD; the Moon Base and Artemis program managers.
Administrator's workforce note, 22 May 2026 The realignment's ten directives: the Moon Base Program as "NASA's central authority for all lunar activities" (Directive 6); space nuclear work under RTMD's Space Reactor Office (Directive 7).
Moon Base speech, 26 May 2026 The Administrator's remarks at the May update: Moon Base I as "the first privately funded lunar lander mission", II and III before the end of 2026.
Lunar surface technologies, draft input, Jun 2026 Comments sought on LEIA's draft; its five topics address gaps "as identified in NASA's Civil Space Shortfalls".
Moon Base science awards release, Jun 2026 Four late-2028 CLPS landings with SCALPSS, a laser retroreflector array and LETS; PROMISE under consideration; four coming solicitations.
NextSTEP-3 A: Lunar Enabling Technology The Lunar Enabling Infrastructure Accelerator (LEIA): five areas to TRL 5–6 by ground testing, for "the technology objectives of NASA's Moon Base".
NextSTEP-3 B: Moon Base Demonstrations HSMD's appendix for demonstrations and studies "that address Moon Base architecture gaps"; nine topics, surface power first; names no ADD gap.
CAPSTONE 02 announcement, Jul 2026 Two-spacecraft lunar-orbit demonstration of rendezvous, navigation and communications.
CAPSTONE extended mission, Jul 2026 The 2022 CAPSTONE (not CAPSTONE 02): autonomous navigation and delay/disruption tolerant networking at the Moon; NASA's work ended June 2026.
Moon Base update, Aug 2026 Status of four commercial landers; Northrop Grumman HALO-derived demonstrations.
NavCube3-mini delivery, Aug 2026 NASA's GPS and Galileo receiver for Intuitive Machines' Altus-1 relay: Earth GNSS navigation in lunar orbit, not the ADD's future lunar "GNSS-like" services.
Building the Moon Base: NASA Stories at the Ion, Aug 2026 Report of a July 2026 talk by the Moon Base Program's principal systems engineer: South Pole challenges, line of sight to Earth, a base that "may not be a single cluster"; recorded as reported.
Wheel challenge, Aug 2026 Rock and Roll with NASA lunar wheel challenge results.
Moon Base podcast, Aug 2026 The Moon Base Program Manager, as reported: the phases, "surviving the shadow", power and landers, the architecture team "matching up to technology gaps".
Plume-surface interaction tests, Aug 2026 Langley's vacuum-sphere tests of engine plumes on regolith simulant; DN-017 L's subject (the wiki's pairing).
PRISM science selections, Sep 2026 Three suites flying via CLPS for the Moon Base Program: LEMS-SP, GIMLI and DISCO; no phase or date.
HSMD page, Sep 2026 The new directorate: "unified leadership for the agency's systems, operations, and architectures"; programs LEO, Artemis, Moon Base and Commercial Access to Space.
Lunar surface technologies release, Sep 2026 LEIA's final solicitation (8 September 2026): the five areas; international partners "through U.S.-led teams".
5G contract, Sep 2026 Modulate Space, about $38 million, for a lunar 5G and Wi-Fi surface network demonstration; #0103's subject (the wiki's pairing).
Lander communications challenge, Sep 2026 The 2027 Human Lander Challenge: student solutions for lunar lander and surface communications.
Moon manufacturing material, Sep 2026 Glenn's bio-plastic mixed with regolith simulant, for parts made in habitats; #0502's subject (the wiki's pairing).

NASA's Moon to Mars Architecture web pages

All undated; fetched 2026-10-01. Most of their text is the 2024 executive overview's.

Page Summary
Main page The front door: "What is Architecture?", the four document groups, mailing list and contacts.
Architecture Definition Documents Every review's products, 2022 to 2025, plus the Users Guide under "2026 Ignition"; which are held (not Revs A and B or the 2022 ADD).
White Papers All 35 papers by year (5, 12, 12, 6); the 18 from 2024–2025 held, and one from 2023, "Lunar Site Selection".
Architecture Workshops Workshops and webinars, May 2023 to Rome, February 2026; a 2025 "Lunar Mobility and Logistics" briefing (open question 30).
Architecture Concept Review The yearly review: SAO, polling for concurrence, the products.
Architecting from the Right Decomposition, technology gaps, and decision roadmapping, with a Mars crew example.
Components Segments, sub-architectures, elements; an editor's note says it is being updated for 2026.
Strategy and Objectives The objectives-based approach; the ten goals and nine tenets in the 2022 wording.
Mars Architecture Trade Space Five open areas for the first Mars missions, from transport to ascent; the page the 2025 Update links.
Mars Architecture Studies Seven historical Mars studies, 1989–2014 (DRA 5.0 and others); none held.
Industry Engagement NextSTEP and its Appendices A (habitation) and R (lunar logistics and mobility studies).
International Engagement OIIR's three contact areas.
Supplemental Reading Eleven links; two out-of-date Artemis III lines; its standards address is the document host the ADD cites.
Feature Stories Ten dated articles, April 2023 to February 2025.
Multimedia Resources Four image galleries; nothing architectural.

Fetched 2026-10-01.

Page Summary
International Deep Space Standards NASA's list of the nine standards adopted for Moon to Mars and Gateway, in two groups, with their revisions; the page the 2025 Update links; it doesn't say which two standards have the "forward work" the ADD mentions (p. 99).
NextSTEP-2 Appendix R, Lunar Logistics and Mobility Studies The 2024 solicitation page: "two gaps in its lunar architecture" (integrated surface logistics, uncrewed surface mobility), seven study areas, and $24 million in study contracts to nine companies in January 2025.