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

date	predicted	market price	confidence
2026-08-27	56%	55%	49%
2026-08-20	60%	58%	53%
2026-08-13	58%	56%	60%

1. Planner Fable 5.1 · Fermi decomposition + tool plan

Tools chosen: kalshi_direct kalshi_related polymarket_related claude_news gdelt_news wikipedia code_execution

Sub-questions (Fermi decomposition)

What is the current Kalshi price for the US being next to send humans to the Moon, and how does it compare to the China contract in the same event?
What is the current launch date for Artemis II (crewed lunar flyby) and does a flyby (not landing) satisfy this market's 'manned mission to the Moon' criterion?
What is China's official target date for its first crewed lunar landing, and what is the status of Long March 10, Mengzhou, and Lanyue test milestones?
How has the Artemis program's schedule slipped historically (Artemis I, II, III delays) and what is the realistic probability of Artemis II launching before 2031 given SLS/Orion heat shield issues and budget/policy changes?
Are there any US policy changes (NASA budget cuts, SLS cancellation, shift to commercial Starship/New Glenn architectures) that could delay or accelerate a US crewed lunar mission?
Does any other country (Russia, India) have a credible crewed lunar mission before 2031?

Planner reasoning

This resolves Yes if the US is the first nation to launch a crewed mission to the Moon before 2031 — primarily a race between NASA's Artemis program (Artemis II lunar flyby, Artemis III landing) and China's crewed lunar landing target of 'before 2030'. Key uncertainties are whether Artemis II flies on schedule (flyby likely counts as 'manned mission to the Moon'), how the resolution treats a flyby vs landing, and China's Long March 10 / Mengzhou / Lanyue progress. The Kalshi price is the primary anchor; Polymarket has similar 'US vs China Moon' markets for triangulation.

2. Research Parallel tool calls

tool	status	time	items	summary
kalshi_direct	OK	0.2s	1	## This Market's Kalshi Data United States (KXMOONMAN-31-USA) - Current price (probability): 55.10% - 7-day price change: -3.10% - 30-day price change: +1.40% - Average daily volume: 114 contracts - Price range: 50.00% - 63.00% - Data points: 80 days
kalshi_related	OK	2.9s	1	1 related markets / summaries. series KXMOONMAN: 0 markets (skipped 5 no-signal) \| keyword 'Artemis': no matches \| keyword 'moon landing': ok \| keyword 'Artemis II': no matches
polymarket_related	OK	2.8s	0	Scanned 100 active Polymarket markets, kept 0 matches. keyword 'moon': 0 markets \| keyword 'Artemis': 0 markets \| keyword 'China moon landing': 0 markets \| keyword 'lunar': 0 markets
claude_news	OK	23.3s	13	## Findings Artemis II (US crewed lunar flyby) - Artemis II launched successfully on April 1, 2026, carrying astronauts NASA astronauts Commander Reid Wiseman, Pilot Victor Glover, and Mission Specialist Christina Koch, and CSA astronaut Mission Specialist Jeremy Hansen, on an approximately 10
gdelt_news	FAILED	240.0s	0	timeout after 240.0s
wikipedia	OK	3.6s	5	Fetched 5 Wikipedia entries (0 missing pages).
code_execution	OK	91.7s	0	## Monte Carlo Results: P(US launches crewed lunar mission before China and before Jan 1 2031) Model setup: Launch dates modeled as `EPOCH + Lognormal(μ, σ)` (μ solved so each program's stated P(launch<2031) is matched exactly); σ_US=0.30 (mature, closely-tracked program), σ_China=0.45 (higher

3. Evidence Brief Sonnet 5 · 7338 chars

# Current state Kalshi's YES price for "US is first to send humans to the Moon (before 2031)" sits at 55.1%, meaning the market is far from certain despite NASA's Artemis II crewed lunar flyby having already launched successfully in April 2026 — the market's resolution appears to require an actual crewed lunar mission/landing race outcome, not merely a flyby, and remains open/unresolved. The real contest is whether NASA's now-delayed crewed lunar landing (Artemis IV, targeted 2028) beats China's crewed landing (official target "before 2030," hardware still in flight-test stage) before the Jan 1, 2031 deadline. # Timeline of key events - 2017-12: Space Policy Directive-1 formally establishes NASA's Artemis program (confirmed, Wikipedia). - 2022-11: Artemis I, uncrewed Orion/SLS test flight to lunar orbit, completed (confirmed, Wikipedia). - 2024: Chang'e 6 returns first lunar far-side samples (confirmed, Wikipedia). - Early 2026: China completes Mengzhou zero-altitude abort test, Lanyue integrated landing/takeoff test, Long March 10 tethered ignition/low-altitude tests (reported, CGTN/SpaceNews). - 2026-02: NASA restructures Artemis III — cancels 2027 landing attempt, converts Artemis III into an Earth-orbit lander/spacesuit test mission; crewed lunar landing now planned for Artemis IV/V in 2028 (confirmed, Scientific American/Britannica). - 2026-04-01: Artemis II launches — first crewed SLS/Orion flight, 10-day lunar flyby with 4 astronauts, no landing (confirmed, NASA/Wikipedia). - 2026-06: NASA names Artemis III crew (Douglas, Rubio, Parmitano, Bresnik) for the now-2027 orbital test mission (reported, Al Jazeera). - As of mid-2026: No Long March 10/CZ-10A crewed-capable flight has occurred; China's crewed lunar architecture remains in prototype/uncrewed test phase, with Mengzhou-1 uncrewed flight as the next major gate (reported, azmth.space/SpaceNews). # Event Will the United States be the first country to launch a manned mission to the Moon before Jan 1, 2031? (Kalshi ticker KXMOONMAN-31-USA) # Outcomes to forecast Yes / No # Kalshi market anchor Current YES price: **55.10%**. 7-day change: -3.10%. 30-day change: +1.40%. Range over 80 days: 50–63%. Average daily volume: ~114 contracts (thin market). This is the consensus to beat — a near-coin-flip lean toward US, but well off the 63% high, suggesting recent softening (likely reflecting Artemis IV/V slip news or China hardware progress). # Sub-question answers 1. **Kalshi US price vs China price** — US price is 55.10%; no direct China-outcome data was retrieved in this pull (kalshi_related returned no China contract), but by construction the multi-outcome market implies China (plus "other") holds ~45% combined. 2. **Artemis II launch date / does flyby satisfy criterion** — Artemis II launched April 1, 2026 as a crewed lunar flyby (NASA, Wikipedia). Since the Kalshi market remains unresolved/open at 55% after this flyby, the market's operative criterion for "send humans to the Moon" appears to require a landing (or the resolution source treats flyby as insufficient) — this is an unresolved ambiguity in market rules. 3. **China's target date / milestone status** — China officially targets a crewed lunar landing "before 2030" (2029–2030 per Wikipedia/CGTN/SpaceNews). Key 2026 milestones: Mengzhou zero-altitude abort test, Lanyue landing/takeoff test, Long March 10 tethered/low-altitude ignition tests completed; no crewed or full-scale CZ-10 flight has yet occurred (azmth.space). 4. **Artemis historical slippage / P(Artemis II <2031)** — Artemis I, II, III have each slipped repeatedly (helium/hydrogen leaks, heat-shield concerns, wet dress rehearsal issues). Artemis II ultimately flew April 2026 (after slipping from earlier 2025-26 targets). Landing mission (now Artemis IV) pushed from 2027 to 2028. Monte Carlo modeling estimates P(US crewed landing effectively achievable before 2031) is high if schedule holds (~85-90%) but drops sharply (to ~35-40%) if further slips push past 2028. 5. **US policy risk** — No confirmed SLS cancellation or budget cut reported in this research; restructuring (Feb 2026) reflects technical/schedule adaptation (spreading landing tests across Artemis III/IV/V) rather than program cancellation. Commercial HLS landers (SpaceX Starship, Blue Origin Blue Moon) remain integral, adding dependency risk. 6. **Other countries (Russia, India)** — No evidence found of a credible Russian or Indian crewed lunar mission timeline before 2031; research is silent, implying no near-term competitive threat from these programs. # Key facts (high-confidence, factual) 1. [NASA/Wikipedia] Artemis II launched April 1, 2026, a crewed lunar flyby (not landing). 2. [Scientific American] NASA restructured Artemis III (Feb 2026), delaying the first crewed landing to Artemis IV, targeted 2028. 3. [Wikipedia/CGTN] China targets crewed lunar landing 2029-2030; core hardware (Long March 10, Mengzhou, Lanyue) still in uncrewed test phase as of mid-2026. 4. [Kalshi] Current YES price 55.10%, down from a 63% high, on thin volume (~114/day). # Cross-market signals - Kalshi related: "Will Blue Origin land on Moon before SpaceX (before 2030)" priced 61%, indicating active Kalshi trading on lunar-race commercial sub-questions. - Polymarket: No matching active markets found. - Sportsbook implied: N/A (not applicable to this event type). # Analyst opinions and speculation - [Yahoo/space analysts] Many experts view China as having a "real chance" of winning the crewed lunar race, given steady hardware testing cadence versus NASA's repeated SLS/Orion delays. - [claude_news synthesis] US retains a "slight technical edge" post-Artemis II, but landing-specific timeline (2028) is not guaranteed given SLS's delay history. - [code_execution Monte Carlo] Central estimate: ~70-75% P(US wins the race before 2031), highly sensitive to Artemis II/IV schedule adherence — could fall to a toss-up or worse if further slippage occurs past 2028. # Directional lean per outcome - **Yes (US)**: Supported by Artemis II's successful flight, named Artemis III crew, active commercial lander development (SpaceX/Blue Origin), and China's hardware still pre-crewed-flight stage. Opposed by NASA's chronic schedule slippage (SLS/Orion issues) and the 2-year gap now needed to Artemis IV (2028) with no landing yet demonstrated. - **No (implicitly China/other)**: Supported by China's disciplined, opaque-but-steady test cadence and long lead time to 2030; opposed by the fact no crewed Chinese lunar hardware has flown at all as of mid-2026. # Gaps / unknowns - Critical rules ambiguity: whether Artemis II's flyby (already flown) counts as "sending humans to the Moon" for resolution purposes — if not landing-specific, market should already have resolved, but hasn't, implying landing is required. - No confirmed China crewed-outcome Kalshi price for direct comparison. - No data on Russia/India programs (assumed non-competitive). # Calibration anchors - Kalshi current YES price: 55.10% (anchor). - Monte Carlo base-rate model: ~70-75% central estimate for US, ranging 60-85% depending on Artemis schedule assumptions, dropping to ~35-40% if Artemis IV slips past 2028. - Precedent: Artemis I/II both slipped multiple years from original targets — base rate for further NASA schedule slippage is high.

4. Forecasters Fable 5.1 + GPT-5.6 Sol · in parallel

claude-fable-5-1

44% conf

Yes	56%
No	44%

The Kalshi anchor of 55.1% (thin volume, down from a 63% high) frames this as a lean-US coin flip, and the market's failure to resolve after the April 2026 Artemis II crewed flyby implies a landing is the operative criterion. The US has a nominal schedule edge (Artemis IV landing targeted 2028 vs China's 2029-2030) and has actually flown crew around the Moon, while China's Long March 10/Mengzhou/Lanyue stack remains in uncrewed test phase. However, NASA's chronic multi-year slippage (Artemis I/II/III all slipped; the landing was just pushed from Artemis III to IV) plus dependence on unproven commercial HLS landers means a slip past 2028 is plausible, and 'No' also captures the meaningful chance that nobody lands before 2031. I stay close to the market with a slight upward tilt reflecting the US's demonstrated crewed lunar flight capability and China's own likely slippage.

gpt-5.6-sol

64% conf

Yes	61%
No	39%

The 55.10% Kalshi YES price is the primary anchor, with the still-open market indicating that Artemis II's completed flyby likely does not satisfy resolution. The United States has a slight lead because Artemis II succeeded and Artemis IV targets a 2028 landing, while China targets 2029-2030 and has not yet flown its crew-capable lunar architecture. NASA's repeated delays and dependence on commercial landers materially constrain that advantage, although there is no confirmed cancellation or comparable pre-2031 threat from Russia or India. I therefore move modestly above the thin-market consensus, but remain below the brief's 70-75% model estimate because further Artemis slippage is a substantial base-rate risk.

5. Devil's Advocate Sonnet 5 · red-team critique

Both forecasts land in a narrow 56-61% band clustered tightly around the Kalshi anchor, but neither engages with why the brief's own Monte Carlo model (70-75% central, ranging 60-85%) diverges so sharply from the market price — they mention it only to discount it, without explaining why the market's thin volume (~114 contracts/day) shouldn't be viewed as less informationally efficient than a structured base-rate model.

Neither forecast addresses the scenario where the "No" outcome could resolve YES for China even if China also slips past 2030, since the question is a race — if the US also slips past 2028 but ultimately lands before 2031 while China lands even later or not at all, "No" is still wrong; both treat "No" as roughly synonymous with "China wins or nobody wins," but the brief's framing suggests any resolution before 2031 by either party settles it, and the relative slippage risk (US 2-year buffer to 2031 vs. China's 2029-2030 target with almost no buffer) is underweighted as an asymmetry favoring the US.

The rules ambiguity flagged in the brief — whether a flyby like Artemis II counts, and the fact the market didn't resolve after April 2026 — is used by both forecasters to infer "landing is required," but neither considers the alternative explanation that the market simply hasn't gotten around to resolving yet (thin volume, low liquidity) or that resolution is contingent on a formal source not yet triggered, which could mean their entire framing of "landing-only" is a shaky inference elevated to near-certainty.

Both forecasters give a passing nod to "no confirmed threat from Russia/India" but neither stress-tests the tail risk that a wildcard (e.g., a joint Russia-China mission, or an unexpected private/national actor) could alter the race; given the brief explicitly says research is "silent" here, this is treated as zero risk rather than a small unmodeled probability mass that should trim both Yes and No.

Forecast 2's rationale claims to "remain below the brief's 70-75% model estimate because further Artemis slippage is a substantial base-rate risk," yet its 61% is barely above Forecast 1's 56%, suggesting the stated reasoning (justifying meaningful daylight below the model) doesn't actually differentiate its output much from a forecast that gives less weight to the model — the confidence delta (0.64 vs 0.44) is not clearly reflected in a materially different probability or tighter reasoning.

Neither forecast explicitly addresses the asymmetry in "how much slippage room" each side has before the Jan 2031 deadline: the US has slipped from 2027→2028 (a 1-year buffer to spare before 2031), while China's 2029-2030 target already sits close to the deadline with "no crewed hardware flown yet" — this asymmetry (China has essentially zero slack for delays, US has ~3 years of slack) arguably justifies a higher Yes probability than either forecaster lands on.

6. Aggregator Fable 5.1 · final calibrated forecast

58% (54% confidence)

Yes: 58% No: 42%

The Kalshi anchor (55%) already reflects that Artemis II's flyby did not resolve the market, so a crewed landing is the operative bar; both forecasters drew the same inference and the critique's alternative (unresolved due to thin volume) is unlikely for a fixed-rules contract. The US holds a genuine schedule asymmetry — a 2028 landing target with ~3 years of slack versus China's 2029–2030 target with almost none and no crew-capable hardware flown — which justifies leaning above the market. However, 'No' also captures the material scenario where nobody lands before 2031, and the US landing is gated on unproven commercial HLS landers (Starship/Blue Moon) plus NASA's chronic multi-year slippage, which caps how far I move from the anchor. I discount the brief's 70–75% Monte Carlo as overly reliant on schedule adherence and settle between the two forecasts at 58% Yes.

Pipeline Timing

Total pipeline time: 358.3s

Per-tool research timings shown in the Research section above.