diff --git a/domains/space-development/clps-mechanism-solved-viper-procurement-problem-through-vehicle-flexibility.md b/domains/space-development/clps-mechanism-solved-viper-procurement-problem-through-vehicle-flexibility.md
index 3759841b0..37635f6f7 100644
--- a/domains/space-development/clps-mechanism-solved-viper-procurement-problem-through-vehicle-flexibility.md
+++ b/domains/space-development/clps-mechanism-solved-viper-procurement-problem-through-vehicle-flexibility.md
@@ -23,3 +23,10 @@ VIPER was originally contracted for 2023 delivery on Astrobotic's dedicated Grif
 **Source:** Multiple outlets, April 19, 2026
 
 NG-3 upper stage failure and subsequent FAA grounding creates timeline risk for VIPER late 2027 delivery. Blue Moon MK1 requires New Glenn reliability by mid-2027 to meet schedule, but no backup launch vehicle for VIPER appears documented in CLPS contract, revealing vehicle flexibility may not extend to launch vehicle substitution.
+
+
+## Extending Evidence
+
+**Source:** SpaceNews, September 23, 2025 (separate article confirming single bidder)
+
+The VIPER revival through CLPS demonstrates vehicle flexibility but reveals market depth limitations: Blue Origin was the only bidder for the task order. This single-bidder outcome shows CLPS provides procurement flexibility but cannot guarantee competitive redundancy when requirements are specialized (lunar south pole delivery, rover accommodation). The mechanism solved the procurement problem but exposed the absence of alternative providers.
diff --git a/domains/space-development/single-provider-ltv-selection-creates-artemis-program-concentration-risk.md b/domains/space-development/single-provider-ltv-selection-creates-artemis-program-concentration-risk.md
index 50da4c280..30cca762e 100644
--- a/domains/space-development/single-provider-ltv-selection-creates-artemis-program-concentration-risk.md
+++ b/domains/space-development/single-provider-ltv-selection-creates-artemis-program-concentration-risk.md
@@ -25,4 +25,10 @@ sourced_from:
 
 # Single-provider LTV selection creates program-level concentration risk for Artemis crewed operations because no backup mobility system exists if Lunar Dawn encounters technical or schedule problems
 
-NASA selected only the Lunar Dawn Team (Lunar Outpost prime, Lockheed Martin principal partner, GM, Goodyear, MDA Space) for the $4.6B LTV demonstration phase contract, despite House Appropriations Committee language urging 'no fewer than two contractors.' The two losing teams—Venturi Astrolab (FLEX rover with Axiom Space) and Intuitive Machines (Moon RACER)—are now unfunded with no backup program. This represents a departure from NASA's recent pattern of dual-provider competition in CLPS and HLS programs, which maintained market competition and program resilience through redundancy. If Lunar Dawn encounters technical delays, cost overruns, or performance issues, Artemis crewed surface operations have no alternative mobility system. The concentration risk is amplified because LTV is mission-critical infrastructure—astronauts cannot conduct meaningful surface exploration without it. Historical precedent from single-provider programs (e.g., Space Shuttle) shows that technical problems in monopoly contracts create program-level delays with no competitive pressure for resolution. The team composition is strong (GM/Goodyear Apollo LRV heritage, Lockheed systems integration), but institutional capability does not eliminate technical risk. Budget constraints likely forced the single-provider decision, but this trades near-term cost savings for long-term program fragility.
\ No newline at end of file
+NASA selected only the Lunar Dawn Team (Lunar Outpost prime, Lockheed Martin principal partner, GM, Goodyear, MDA Space) for the $4.6B LTV demonstration phase contract, despite House Appropriations Committee language urging 'no fewer than two contractors.' The two losing teams—Venturi Astrolab (FLEX rover with Axiom Space) and Intuitive Machines (Moon RACER)—are now unfunded with no backup program. This represents a departure from NASA's recent pattern of dual-provider competition in CLPS and HLS programs, which maintained market competition and program resilience through redundancy. If Lunar Dawn encounters technical delays, cost overruns, or performance issues, Artemis crewed surface operations have no alternative mobility system. The concentration risk is amplified because LTV is mission-critical infrastructure—astronauts cannot conduct meaningful surface exploration without it. Historical precedent from single-provider programs (e.g., Space Shuttle) shows that technical problems in monopoly contracts create program-level delays with no competitive pressure for resolution. The team composition is strong (GM/Goodyear Apollo LRV heritage, Lockheed systems integration), but institutional capability does not eliminate technical risk. Budget constraints likely forced the single-provider decision, but this trades near-term cost savings for long-term program fragility.
+
+## Supporting Evidence
+
+**Source:** SpaceNews, September 2025; Blue Origin only bidder for VIPER award
+
+VIPER delivery now exhibits the same single-provider concentration risk as the LTV selection. Blue Origin was the only bidder for the $190M VIPER lander task order, creating a single point of failure in the ISRU prerequisite chain. The phased contract (Phase 2 contingent on Phase 1 success and first Blue Moon landing) provides no fallback mechanism if Blue Origin fails to meet requirements.
diff --git a/domains/space-development/viper-prospecting-mission-structurally-constrains-operational-isru-to-post-2029.md b/domains/space-development/viper-prospecting-mission-structurally-constrains-operational-isru-to-post-2029.md
index 1c01a3b39..a5666cde7 100644
--- a/domains/space-development/viper-prospecting-mission-structurally-constrains-operational-isru-to-post-2029.md
+++ b/domains/space-development/viper-prospecting-mission-structurally-constrains-operational-isru-to-post-2029.md
@@ -10,12 +10,17 @@ agent: astra
 scope: structural
 sourcer: NASA, Blue Origin
 related_claims: ["[[the 30-year space economy attractor state is a cislunar industrial system with propellant networks lunar ISRU orbital manufacturing and partial life support closure]]", "[[water is the strategic keystone resource of the cislunar economy because it simultaneously serves as propellant life support radiation shielding and thermal management]]", "[[power is the binding constraint on all space operations because every capability from ISRU to manufacturing to life support is power-limited]]"]
-supports:
-- PROSPECT and VIPER 2027 missions are single-point dependencies for Phase 2 operational ISRU because they are the only planned chemistry and ice characterization demonstrations before 2029-2032 deployment
-reweave_edges:
-- PROSPECT and VIPER 2027 missions are single-point dependencies for Phase 2 operational ISRU because they are the only planned chemistry and ice characterization demonstrations before 2029-2032 deployment|supports|2026-04-17
+supports: ["PROSPECT and VIPER 2027 missions are single-point dependencies for Phase 2 operational ISRU because they are the only planned chemistry and ice characterization demonstrations before 2029-2032 deployment"]
+reweave_edges: ["PROSPECT and VIPER 2027 missions are single-point dependencies for Phase 2 operational ISRU because they are the only planned chemistry and ice characterization demonstrations before 2029-2032 deployment|supports|2026-04-17"]
+related: ["viper-prospecting-mission-structurally-constrains-operational-isru-to-post-2029", "prospect-and-viper-2027-demos-are-single-point-dependencies-for-phase-2-isru-timeline"]
 ---
 
 # VIPER's late 2027 prospecting mission structurally constrains operational lunar ISRU to post-2029 because extraction system design requires site characterization data
 
-VIPER is a science and prospecting rover, not an ISRU production demonstration. Its 100-day mission will use a TRIDENT percussion drill (1m depth) and three spectrometers (MS, NIRVSS, NSS) to characterize WHERE water ice exists, its concentration, form (surface frost vs. pore ice vs. massive ice), and accessibility. This data is a prerequisite for ISRU system design—you cannot engineer an extraction system without knowing the ice concentration, depth, and physical form at specific sites. The mission sequence is: VIPER landing (late 2027) → 100-day data collection → data analysis and site characterization (6-12 months) → ISRU site selection → ISRU hardware design and testing → deployment. Even under optimistic assumptions, this sequence cannot produce operational ISRU before 2029. This timeline constraint is particularly relevant for Artemis program goals: Project Ignition Phase 2 (2029-2032) targets 'humans on surface for weeks/months,' which would benefit from operational ISRU, but the VIPER timeline means ISRU design cannot be finalized until 2028 at earliest. The 2-year delay from VIPER's original 2023 plan to the 2027 revival represents a significant setback in the water ice characterization timeline that cascades through all downstream ISRU development.
\ No newline at end of file
+VIPER is a science and prospecting rover, not an ISRU production demonstration. Its 100-day mission will use a TRIDENT percussion drill (1m depth) and three spectrometers (MS, NIRVSS, NSS) to characterize WHERE water ice exists, its concentration, form (surface frost vs. pore ice vs. massive ice), and accessibility. This data is a prerequisite for ISRU system design—you cannot engineer an extraction system without knowing the ice concentration, depth, and physical form at specific sites. The mission sequence is: VIPER landing (late 2027) → 100-day data collection → data analysis and site characterization (6-12 months) → ISRU site selection → ISRU hardware design and testing → deployment. Even under optimistic assumptions, this sequence cannot produce operational ISRU before 2029. This timeline constraint is particularly relevant for Artemis program goals: Project Ignition Phase 2 (2029-2032) targets 'humans on surface for weeks/months,' which would benefit from operational ISRU, but the VIPER timeline means ISRU design cannot be finalized until 2028 at earliest. The 2-year delay from VIPER's original 2023 plan to the 2027 revival represents a significant setback in the water ice characterization timeline that cascades through all downstream ISRU development.
+
+## Challenging Evidence
+
+**Source:** SpaceNews, September 20, 2025; Blue Origin VIPER award details
+
+VIPER delivery now depends on a three-link sequential chain (New Glenn → Blue Moon MK1 first flight → VIPER delivery on second flight) with no documented fallback provider. Blue Origin was the only bidder for the $190M task order, confirming no alternative delivery vehicle exists in the market. The phased contract structure (Phase 1 design work, Phase 2 delivery contingent on Phase 1 success AND successful first Blue Moon landing) reduces NASA's cost risk but provides zero schedule resilience. With New Glenn grounded following NG-3 upper stage failure (April 2026), the first Blue Moon landing is delayed indefinitely, pushing VIPER delivery beyond late 2027 target.
diff --git a/entities/space-development/blue-moon-mark-1.md b/entities/space-development/blue-moon-mark-1.md
new file mode 100644
index 000000000..8e6b862bd
--- /dev/null
+++ b/entities/space-development/blue-moon-mark-1.md
@@ -0,0 +1,41 @@
+# Blue Moon Mark 1
+
+**Type:** Lunar lander  
+**Developer:** Blue Origin  
+**Status:** In development  
+**First flight:** Expected 2026 (delayed from "later in 2025" due to New Glenn grounding)  
+**Launch vehicle:** New Glenn  
+
+## Overview
+
+Blue Moon Mark 1 is Blue Origin's lunar lander designed for CLPS missions. Selected by NASA in September 2025 as the sole bidder for VIPER rover delivery to the lunar south pole.
+
+## Timeline
+
+- **2025-09-20** — NASA awards Blue Origin $190M phased task order for VIPER delivery using Blue Moon Mark 1. Phase 1 covers design work for VIPER accommodations and surface deployment. Phase 2 (actual delivery) contingent on Phase 1 success and successful first Blue Moon landing.
+- **2026-04-19** — First Blue Moon landing delayed indefinitely following New Glenn NG-3 upper stage failure and subsequent grounding.
+
+## Technical Details
+
+- **Payload capacity:** Sufficient for VIPER rover accommodation
+- **Target landing site:** Lunar south pole
+- **Mission profile:** VIPER delivery would be second Blue Moon flight
+
+## Program Structure
+
+**Phased contract approach:**
+- Phase 1 (base): Design work for VIPER accommodations and deployment procedures
+- Phase 2 (optional): Actual delivery mission, contingent on Phase 1 completion and successful first Blue Moon landing
+
+**Single-provider risk:** Blue Origin was the only bidder for the VIPER task order, leaving NASA with no alternative delivery provider.
+
+## Dependencies
+
+- New Glenn launch vehicle operational status
+- Successful first Blue Moon landing demonstration
+- Phase 1 design work completion
+
+## Sources
+
+- SpaceNews, September 20, 2025: "NASA revives VIPER lunar rover mission with Blue Origin lander award"
+- SpaceNews, September 23, 2025: "Blue Origin only bidder for new VIPER lander award"
\ No newline at end of file