Scan: Which country will be the next to send humans to the Moon?

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Which country will be the next to send humans to the Moon? — United States

KXMOONMAN-31-USA · Science and Technology · 2026-05-14

55%

Agent

51%

Market Price

+3.9%

Edge

50%

Confidence

Volume: 69,428

Spread: 4.3c

Days to resolution: 1692

Markets in event: 5

Final Rationale

The Devil's Advocate correctly identified a major reasoning flaw: the question asks which country is NEXT to send humans to the Moon, and Artemis II's successful April 2026 crewed lunar flyby plausibly already satisfies resolution under the Apollo 8 precedent — I ACCEPT this critique substantially. Even under a strict landing interpretation, P(US first | anyone lands by 2031) is ~85-90% since China's 2030 target requires multiple untested new vehicles. Combining ~30-40% probability the flyby already qualifies with ~45% US landing probability and high conditional 'US first' probability yields roughly 55%, aligning with the market. The market at 54% has high depth and 214 days of price discovery post-Artemis II, deserving deference given my acknowledged reasoning gap.

Price vs. prediction

How the market moved after the agent's call. Solid blue line is the actual market price; dashed line is the agent's static forecast at $t{=}0$.

$n = 58$ follow-ups

Re-scan Context

This market has been scanned before. Previous predictions:

Date	Predicted	Market Price	Confidence
2026-05-07	47%	51%	40%
2026-04-30	58%	53%	45%
2026-04-03	68%	52%	50%

1. Planner Opus · Fermi decomposition + tool plan

Tools chosen: kalshi_data kalshi_orderbook article_search web_search wikipedia_lookup code_execution

Sub-questions (Fermi decomposition)

Will any country send humans to the Moon before January 1, 2031? (w=0.25)
Will NASA's Artemis program successfully land humans on the Moon before January 1, 2031? (w=0.45)
Will a competitor nation (China, private entities) beat the United States to a crewed lunar landing before 2031? (w=0.30)

Planner reasoning

This question asks whether the United States will be the first country to send humans to the Moon before Jan 1, 2031 — a ~4.6 year window from today (May 2026). The key causal chain is: (1) NASA's Artemis program successfully completes Artemis II (crewed lunar flyby) and Artemis III (crewed landing), (2) No other nation (primarily China) beats them to it. Artemis has a long history of delays: initially targeting 2024, pushed to 2025, 2026, and now Artemis II (uncrewed Earth-Moon flyby with crew) may not fly until late 2025 or 2026. Artemis III (the actual landing) depends on Artemis II success plus SpaceX Starship Human Landing System (HLS) readiness. As of 2026, Artemis III is likely targeting no earlier than 2027-2028. Reference class: NASA's history of large program delays suggests a ~50-70% probability of further slippage beyond current targets. Apollo took 8 years from announcement; Artemis has been in serious development since ~2019. China's crewed lunar program targets ~2030 and is also subject to delays but is a real competitor. China has successfully demonstrated robotic lunar capabilities (Chang'e 5, 6). Temporal sequence for YES: Artemis II flies (2026?), Artemis III ready by late 2027 or 2028, Starship HLS certified, no China mission precedes it. The 4.6-year window is substantial but Artemis III alone requires multiple prerequisites. The most likely window for US success is 2027-2029 if things proceed. Key uncertainties: SpaceX Starship HLS readiness, political/budget continuity (NASA budget under scrutiny), SLS reliability after Artemis I. The US is heavily favored IF any crewed Moon mission happens before 2031, but the overall probability of any such mission is itself uncertain.

2. Research Parallel tool calls · legacy v2

Tool	Status	Time	Items
kalshi_data	OK	2.0s	-
kalshi_orderbook	OK	0.3s	-
article_search	OK	0.9s	-
web_search	OK	73.7s	-
wikipedia_lookup	OK	1.9s	-
code_execution	OK	0.0s	-

3. Evidence Synthesis Sonnet · 19 items · legacy v2

#	Strength	Credibility	Direction	Source	Claim	Priced In
1	STRONG	95	↑ UP	article_search	Artemis II successfully completed a crewed lunar flyby (April 1–11, 2026), splashing down safely — confirming the US has active, functioning crewed deep-space hardware.	Yes
2	STRONG	88	↑ UP	article_search	NASA's revised plan (Feb 27, 2026) targets a crewed lunar landing (now called Artemis IV) in 2028, with Artemis III as an Earth-orbit lander test in late 2027.	Yes
3	MODERATE	40	↑ UP	code_execution	A Monte Carlo simulation estimates P(any country lands before 2031) at ~60% and P(USA is first to land before 2031) at ~54%.	No
4	MODERATE	70	NEUTRAL	kalshi_data	Kalshi market for 'United States sends humans to the Moon before 2031' is priced at 54%, down 9% over 30 days but up 3% over 7 days.	Yes
5	STRONG	97	↑ UP	article_search	Artemis II (crewed lunar flyby) completed successfully on April 11, 2026 — a critical prerequisite milestone for the landing missions has been cleared.	Yes
6	STRONG	88	↓ DOWN	web_search	As of late April 2026, NASA confirmed Artemis III (Earth-orbit lander test) targets late 2027, but this initial target will be missed due to delays in SpaceX Starship HLS and Blue Origin Blue Moon — pushing the schedule further right.	No
7	STRONG	90	↓ DOWN	article_search	NASA's February 2026 overhaul redesignated the lunar landing as Artemis IV, targeting 2028 — adding at least one more mission step compared to prior plans.	Yes
8	MODERATE	75	NEUTRAL	web_search	Orion spacecraft for Artemis III has an internal readiness date of January 2028, and NASA/Lockheed Martin are accelerating production following the mission redesign.	No
9	MODERATE	82	↑ UP	web_search	SLS core stage hardware for Artemis III arrived at KSC on April 28, 2026, and RS-25 engines are scheduled for delivery by July 2026 — showing tangible hardware progress.	No
10	MODERATE	72	↑ UP	article_search	NASA announced a $20 billion plan to build a moon base, targeting two landing missions per year and semi-permanent lunar occupation — indicating high-level political and institutional commitment.	Yes
11	MODERATE	80	↑ UP	article_search	There were known safety concerns about Orion's heat shield going into Artemis II; NASA flew anyway and the mission succeeded, partially validating the vehicle for future missions.	Yes
12	MODERATE	72	↑ UP	article_search	NASA has an 80% favorability rating and bipartisan public support (62% say costs are justified), reducing the probability of program cancellation due to political pressure.	Yes
13	STRONG	82	NEUTRAL	wikipedia_lookup	Wikipedia confirms Artemis III is targeted for late 2027 as an Earth-orbit lander test, with the first crewed lunar landing now referred to as Artemis IV targeting 2028.	Yes
14	MODERATE	78	NEUTRAL	web_search	The Artemis III Earth-orbit test mission is confirmed to fly to a 460 km low Earth orbit and will use a mass-simulator 'spacer' instead of a functional upper stage — indicating hardware compromises are being made to maintain schedule.	No
15	STRONG	85	↑ UP	article_search	NASA's February 2026 overhaul explicitly cited 'a race with China' as motivation for the restructured plan, confirming China is considered a serious near-term competitor.	Yes
16	WEAK	60	↓ DOWN	wikipedia_lookup	China's lunar program has demonstrated robotic capabilities (Chang'e missions) but Wikipedia does not confirm a specific crewed lunar landing date before 2030 for China.	Yes
17	MODERATE	55	↑ UP	kalshi_data	A related Kalshi market 'Will Blue Origin land on the moon before SpaceX — Before 2030' is priced at 65%, suggesting significant market belief that SpaceX (the US HLS contractor) is likely to reach the moon before 2030.	Yes
18	WEAK	38	↓ DOWN	code_execution	Monte Carlo simulation estimates the probability that USA is NOT first (i.e., a competitor beats the US) at roughly 6% conditional on anyone landing before 2031 (0.602 - 0.540 = 0.062 difference).	No
19	MODERATE	65	↓ DOWN	article_search	No recent articles report any imminent Chinese crewed lunar mission milestone — China's crewed lunar landing program is acknowledged as a ~2030 target with its own potential for delays.	Yes

Information Gaps

No specific data on current status of SpaceX Starship HLS development — critical for Artemis IV landing timeline and probability
No specific data on Blue Origin Blue Moon lander readiness or test milestones
No current intelligence on China's crewed lunar program hardware status, budget, or specific milestones achieved in 2025-2026
No data on NASA FY2026/2027 budget appropriations or potential DOGE/OMB cuts that could affect Artemis funding
No information on whether Artemis III Earth-orbit test with landers is on track for late 2027 or facing further schedule pressure
No data on Orion Artemis IV spacecraft production progress or heat shield resolution status post-Artemis II
No data on whether private crewed lunar missions (e.g., SpaceX Starship commercial) could launch independently before a NASA-led landing

Key Uncertainties

SpaceX Starship HLS readiness: Starship is still in development with its own test history; delays in Starship directly delay Artemis IV lunar landing
Whether Artemis III (Earth-orbit lander test, late 2027 target) will slip further, potentially pushing Artemis IV landing to 2029 or beyond the 2031 deadline
China's pace of crewed lunar development — if China accelerates, it could plausibly reach the Moon by 2030, beating the US
NASA budget sustainability under current administration scrutiny of federal agencies — any significant cuts could slow or cancel missions
Whether the Orion heat shield issue discovered after Artemis I was fully resolved going into Artemis II, and implications for Artemis IV
Political continuity: 2028 presidential transition could change space policy priorities
Whether 'sending humans to the Moon' in the resolution criteria requires a landing or includes orbital missions (Artemis II was a flyby, not a landing)

Market Context

Price: 0.54 · 7d: +0.03 · 30d: -0.09
Volume: MODERATE · Depth: HIGH (112,341 depth reported)
Reliability: MEDIUM-HIGH — 287 avg daily contracts, 214 days of data, wide historical price range (26%-74%) suggests genuine uncertainty; recent 30-day decline may reflect Artemis program restructuring news from Feb 2026

4. Independent Forecaster Opus · No market price · legacy v2 Did NOT see market price

Independent estimate: 41% (40% confidence)

base rate

45%

40% conf

evidence driven

46%

40% conf

contrarian

33%

40% conf

Spread

13pp

Moderate

sq1: Will any country send humans to the Moon before January 1, 2031?

55%

Base rate for major NASA programs hitting targets within 5 years of stated date is ~30-40% given historical slippage (Apollo, Shuttle, Constellation, JWST all slipped). However, Artemis II's successful April 2026 flyby is a major de-risking event. If 'send humans to the Moon' includes flybys/orbital missions, this is already partially satisfied — but the colloquial interpretation requires landing. Weighting ~85% landing interpretation: P(US lands by 2031) ~50% + P(China lands by 2030) ~10% (with overlap), gives ~55% any country lands. Adding ~15% weight for flyby interpretation where Artemis II already qualifies pushes up slightly. Final: 55%.

sq2: Will NASA's Artemis program successfully land humans on the Moon before January 1, 2031?

45%

Base rate: NASA flagship programs hitting landing milestones within 4-5 years of stated date is ~30-40%. Current target is Artemis IV in 2028, meaning ~2 years of slack before the 2031 deadline. Strong UP factors: Artemis II success (+10%), tangible SLS/Orion hardware progress (+5%), bipartisan political support and China-race urgency (+5%). Strong DOWN factors: Starship HLS still in development with significant unknowns (-10%), Blue Moon delays (-3%), addition of Artemis III as intermediate test pushes landing further right (-5%), historical 1-2 year slip per Artemis mission means 2028 target likely becomes 2029-2030 (-5%). Net: starting from ~50% base for a 4.6-year window with active hardware, adjusting to ~45%.

sq3: Will a competitor nation beat the United States to a crewed lunar landing before 2031?

Base rate: China's stated target is 2030, and China has consistently met or come close to its stated space program timelines (Tiangong, Chang'e series). However, crewed lunar landing requires new heavy-lift rocket (Long March 10), new crew capsule (Mengzhou), new lander (Lanyue) — all in development. Probability China lands by end of 2030: ~15-20%. Probability they do so BEFORE the US: depends on US timeline. If US lands in 2028-2029, China very unlikely to beat. If US slips to 2030+, China could beat. Conditional probability competitor beats US to landing: ~8%. This question is for YES=competitor beats US, so 8%.

Show full reasoning trace

base rate: NASA flagship programs historically slip 1-2 years per major milestone. Artemis has already slipped from 2024 to 2028+ for landing. Base rate of hitting current target within 2-year slack window: ~40-50%.

evidence updates: Artemis II success is a major positive update (+10% on US landing probability). Reorganization adding Artemis III as Earth-orbit test pushes landing later (-5%). Starship HLS and Blue Moon uncertainty (-10%). China not showing imminent threat (+slight up for US-first probability).

combination method: Conditional probability: P(US lands by 2031) × P(US first | US lands), with weighting for ambiguity in 'send humans to the Moon' interpretation (landing vs flyby).

final: The landing interpretation dominates and gives ~40-45%. Slight upward adjustment for flyby interpretation ambiguity (Artemis II already happened) yields ~45%. Confidence is medium-low due to Starship HLS uncertainty, political/budget risks, and interpretation ambiguity.

ensemble: {'ensemble_count': 3, 'perspectives': {'base_rate': {'p_yes': 0.45, 'confidence': 0.4}, 'evidence_driven': {'p_yes': 0.46, 'confidence': 0.4}, 'contrarian': {'p_yes': 0.33, 'confidence': 0.4}}, 'spread': 0.13, 'individual_p_yes': {'base_rate': 0.45, 'evidence_driven': 0.46, 'contrarian': 0.33}}

5. Devil's Advocate Sonnet · legacy v2 Market price revealed

Reasoning Flaw Missing Info Asymmetric Evidence

Challenges

Question interpretation conflation: The question is 'Which country will be the NEXT to send humans to the Moon — United States'. This typically resolves based on which country is FIRST to send humans (crewed landing or flyby depending on resolution criteria), not whether the US lands by 2031. The forecaster mixed two different questions: (a) does the US land by 2031, and (b) is the US the next country to send humans. If Artemis II (April 2026 crewed flyby) already counts as 'sending humans to the Moon,' then the US has ALREADY done this and the question may resolve YES regardless of future landings. This is a major reasoning gap that should push the forecast significantly higher.
Sub-question framing mismatch: sq1 asks about 'any country' and sq2 about US Artemis landing, but the resolution likely hinges on whether the US is first to do the qualifying activity. Given Artemis II already happened and no competitor has come close, the conditional P(US is next | something qualifies) is very high — likely 85-95%, not implied by the 41% combined estimate.
Combination math is unclear and likely underweights the 'Artemis II already qualifies' scenario. The forecaster gives this only ~15% weight in sq1 but doesn't propagate it properly to the final answer. If 'sending humans to the Moon' includes the Artemis II flyby (a defensible and common interpretation, as Apollo 8 is universally described as 'sending humans to the Moon'), then YES is near-certain.
Market at 54% with high orderbook depth and 214 days of data, knowing Artemis II succeeded, suggests the market interprets resolution criteria as requiring a landing AND prices US-first probability around 54%. Forecaster's 41% is below this without strong justification — the contrarian perspective (33%) is pulling the ensemble down despite weak basis.

Suggested adjustment: +10pp

The primary flaw is interpretation: 'send humans to the Moon' plausibly includes lunar flyby missions (Apollo 8 precedent), and Artemis II already completed a crewed lunar flyby in April 2026 with no competitor close. Even under strict landing interpretation, the question asks who is NEXT (first), not whether the US lands by a date — so P(US first | someone lands) is high (~85%) because China is years behind. The decomposition conflates 'US lands by 2031' with 'US is next country.' Adjusting upward ~10pp to reflect (a) non-trivial probability Artemis II already satisfies resolution, and (b) high conditional probability US beats China if anyone lands.

Market comparison: Forecaster: 41.3%, Market: 54%. The 12.7pp divergence is not justified by superior information — if anything, the forecaster has a reasoning flaw (conflating 'US lands by 2031' with 'US is next country to send humans'). Market's higher price likely reflects proper weighting of Artemis II completion and US-vs-China lead. Divergence appears to favor the market here.

6. Aggregator Opus · final calibrated forecast

55% (50% confidence)