Trade: Major meteor strike (10kt+) in 2026?

Market context

A natural meteoroid striking Earth's atmosphere with explosive force equivalent to 10 kilotons of TNT or greater remains a low-frequency but non-zero event. The 10-kiloton threshold sits well below the Chelyabinsk meteor of 2013 (approximately 440 kilotons), which injured over 1,500 people across Russia, yet substantially above the smaller bolides detected regularly by atmospheric monitoring networks. The current order book on Polymarket reflects an 18% implied probability, suggesting traders assess roughly a one-in-five chance of such an impact occurring within the 2026 calendar year.

Historical detection records from NASA's JPL Fireball and Bolide repository show that impacts in the 10–100 kiloton range occur on average once every few decades, though detection rates have improved markedly since satellite-based monitoring became routine in the 1990s. The Chelyabinsk event itself was largely unexpected before impact, highlighting gaps in near-Earth object cataloguing. Smaller confirmed bolides—such as the 2018 Kamchatka explosion (approximately 173 kilotons) and numerous sub-kiloton atmospheric detonations logged annually—establish that detection infrastructure now captures most significant events, though uncertainty remains around the true frequency of unobserved oceanic or remote-region impacts.

Traders should monitor announcements from NASA's Planetary Defense Coordination Office and updates to the Minor Planet Center's near-Earth object tracking database, which publishes revised orbital predictions for known asteroids. The European Space Agency's Near-Earth Object Coordination Centre also releases periodic risk assessments. No scheduled major survey expansions or detection capability upgrades are anticipated before year-end 2026 that would materially shift baseline impact probabilities, meaning the probability will largely track observational data as it accumulates through the settlement period.

How this market resolves

Resolution is handled by the UMA optimistic oracle on Polygon. A proposer submits the outcome, a two-hour dispute window opens, and if no one stakes a counter-claim the payout is final. Contested outcomes escalate to UMA token-holder voting. Payouts clear in USDC to the winning side.

How to trade this market step by step

The mechanics for trading "Major meteor strike (10kt+) in 2026?" are the same as any other PolyGram event contract. Each YES share resolves to $1 if the event happens, or $0 if it doesn't. The current price between 0¢ and 100¢ is the market's probability estimate, set live by the order book.

1. Sign in on polygram.ink with your email — no full KYC under $1,500 lifetime trading volume.
2. Deposit USDC on Polygon (lowest fees, ~$0.01 per transaction) or Ethereum. Funds credit after 12 confirmations.
3. Pick a side. Buy YES if you believe the event will happen; buy NO if you think it won't. The current YES price reflects the market's collective probability.
4. Size your position. If you stake 100 USDC at 18% YES, you'll receive shares that pay $556 if YES resolves true — a 456% gross return. If NO resolves, your shares are worth $0.
5. Set risk controls (optional). Stop-loss, take-profit, and limit-order types all supported. Use the trade ticket's slippage box to cap your maximum entry price.
6. Wait for resolution. When the event resolves on-chain via the UMA optimistic oracle, the winning side settles to 100¢ automatically and USDC hits your balance within seconds. Withdrawable to any wallet you control.

How active is this market?

$152K in lifetime turnover and $32K of resting liquidity puts this market in the top 30% by volume for climate science contracts on PolyGram. Order-book depth is strong — order books support five-figure trades with single-cent slippage.

Last 24 hours alone saw $2K in turnover, consistent with the market's lifetime daily-average pace.

The market has been open for 4 months — the price has had time to stabilise as new information arrived.

Higher-volume markets tend to have tighter spreads and faster price discovery — meaning the displayed YES/NO percentages are more likely to reflect the true crowd-implied probability rather than a single trader's directional view.

Key terms

YES / NO share

A binary outcome token that pays $1.00 if the underlying claim resolves true (YES) or false (NO), and $0 otherwise. The market price between 0¢ and 100¢ is the implied probability.

CLOB

Central limit order book. The matching engine that pairs YES buyers with NO buyers (effectively the same trade). Polymarket's CLOB on Polygon executes trades on-chain via the conditional-tokens framework.

Liquidity

USDC capital sitting in resting limit orders inside the order book. Deeper liquidity means smaller slippage on large trades and a tighter bid-ask spread.

UMA optimistic oracle

The on-chain dispute system that settles each Polymarket market. A proposer submits the outcome, a two-hour challenge window opens, and unchallenged proposals finalise the resolution.

Slippage

The difference between the displayed mid-price and your fill price. Affects market orders most; limit orders avoid slippage but may take time to fill.

Conditional token

ERC-1155 outcome share issued by Gnosis Conditional Tokens on Polygon. The token type that resolves to $1.00 or $0.00 at settlement.

See the full prediction-market glossary →

Frequently asked questions

Risk and regulatory note

Prediction-market positions can lose 100% of staked capital. Outcomes are uncertain by definition — historical accuracy of crowd-implied probabilities is high in aggregate but not for any single market. PolyGram does not provide investment advice. Trade only with capital you can afford to lose.

Regulatory status varies by jurisdiction. Germany, the United States, and most EU countries treat Polymarket-style event contracts under one of three frameworks: financial derivative, gambling product, or unregulated novel asset. Consult local counsel before trading.

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