Will SpaceX Starship Flight Test 12 launch by May 31?
Probability
87¢
1h
+0.0pp
24h
-6.0pp
24h Vol
$1.0K
Liquidity
$2.5K
Canonical status
confidence: highSource status (Polymarket)
Derived status (Orrery)
Reason
Active market, expiry beyond the near-expiry window.
Resolution & Risk
LOW risk- End date
- May 31, 2026
- UMA status
- n/a
- Resolution source
- Market type
- Binary
- No obvious resolution-risk signals in metadata.
Probability (last 7 days)
-1.0pp 7dWhy did it move?
Structured · 2 factors- 01Price move
Down 6pp over 24h
Now 87¢; flat in the last hour.
- 02Liquidity
Thin liquidity
Only $2.5k of visible book — small orders can move the line. Treat the probability as a soft estimate.
What to track next
- Set an alert if probability recovers above 92¢ — that's where this move would be reversing.
- Add to your watchlist — Home will show probability deltas since your last visit.
- Compare against sibling markets in the same event below — divergent pricing across related contracts is the cleanest tell.
Verification actions only — never trade recommendations.
Each factor is grounded in a single named metric you can verify on this page — probability, volume, liquidity, signal, resolution state. No predictions, no prose hallucinations.
Resolution & Risk
LOW risk- End date
- May 31, 2026
- UMA status
- n/a
- Resolution source
- Market type
- Binary
- No obvious resolution-risk signals in metadata.
Timeline
critical · price · trade flowCritical
- May 31, 00:00 UTCScheduled resolutionLOW
Market resolves in 305.0h
Price movement
-6.0pp over the last 24h, now 87¢.
Biggest hourly move: +12.0pp at May 15, 08:00 UTC (to 92¢).
Show top 8 of 23 hourly moves
- 06:58 · -6.5pp → 86¢
- 03:00 · -6.0pp → 86¢
- 02:00 · -6.0pp → 87¢
- May 15, 13:00 UTC · +6.5pp → 93¢
- May 15, 12:00 UTC · +8.5pp → 92¢
- May 15, 10:00 UTC · +7.5pp → 92¢
- May 15, 08:00 UTC · +12.0pp → 92¢
- May 15, 07:00 UTC · +9.5pp → 92¢
Recent Trades
No recent trades visible from the Data API for this market. That usually means liquidity is thin or this market is between event windows.
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Market Description
If the 12th SpaceX Starship successfully launches from its launch pad by May 31, 2026, 11:59 PM ET, this market will resolve to “Yes”. Otherwise, this market will resolve to “No.” The outcome of any launch will be corroborated by examining official video provided by SpaceX (https://www.youtube.com/c/SpaceX), as well as secondary video feeds and/or written reports if necessary. Any subsequent anomaly (e.g., an explosion) after the launch will have no bearing on the outcome. Any name change of the Starship with another vehicle will have no bearing on the outcome of the market.
Why this category?
confidence: highCategory
Source
Matched term
starsReason
Question text matched the sports hard-marker "stars" — runs before rules to catch upstream mis-tagging.
Categories come from a deterministic engine: manual overrides (highest priority) → sports hard markers → event-tag rules → keyword rules → Gamma category hint → default. The engine is versioned in category-overrides.ts; methodology lives at /methodology.
FAQ — questions readers actually ask
What is the current Polymarket probability for "Will SpaceX Starship Flight Test 12 launch by May 31?"?
As of Mon, 18 May 2026 06:58:12 GMT, YES is priced at 87% implied probability on Polymarket. The price changed -6.0pp in the last 24 hours, +0.0pp in the last hour, and -1.0pp in the last 7 days.
When does this market resolve?
This market resolves by May 31, 2026 (2026-05-31T00:00:00.000Z). Resolution is determined from the market description on Polymarket.
What source determines the outcome?
Resolution is sourced from the market description on Polymarket. Polymarket's UMA optimistic oracle is the final settlement layer; if the published source is ambiguous, UMA tokenholders adjudicate. Source-extraction confidence is shown in the Resolution & Risk block above.
How much is being traded on this market?
$1.0K of trading volume in the last 24 hours. Lifetime volume on Polymarket: $17.8K. Open liquidity in the YES/NO orderbooks: $2.5K. Spread between best bid and best ask: 1.0¢.
Is this a trade recommendation?
No. Orrery describes — never predicts. Every signal on this market carries explicit Evidence, Backtest, and Action tiers. The Action is always one of: Watch only, Inspect timeline, Create alert, Verify source, or Ignore — never Buy or Sell. The probability above is the market's collective implied probability, not a forecast Orrery is publishing.
How fresh is this data and where does it come from?
This page revalidates from the public Polymarket APIs every 30 seconds. Probability and 24h-change come from Gamma; the chart series comes from the CLOB orderbook history; trade and holder data come from the Data API. The fetched-at timestamp on each block tells you exactly how old the underlying upstream pull was.
Alerts
In-app banners fire as soon as a rule is satisfied. Email digests are wired to a server-side cron and continue while your tabs are closed. Telegram and Discord are planned — every existing rule will keep working as channels light up.