Resolution criteria on PolyGram: This market will resolve to "Yes" if a natural meteoroid (bolide) explodes in Earth's atmosphere with a total impact energy greater than or equal to 100 kilotons of TNT equivalent between January 1 and December 31, 2026, 11:59 PM ET. Otherwise, this market will resolve to “No”. The object must be classified as a natural meteoroid; events involving artificial objects or reentry vehicles do not qualify. The primary resolution source will be the NASA JPL Fireball and Bolide Data repository: https://cneos.jpl.nasa.gov/fireballs/. The relevant field for determining impact energy is the “Impact Energy (kt)” column.
PolyGram is an on-chain prediction market where you trade YES or NO outcome shares with real USDC on Polygon. For this market, buy YES if you believe the event will happen, or NO if you think it won't. Your maximum loss is your stake — winning shares pay $1.00 each at resolution. Unlike sportsbooks, there is no house edge: prices are set by supply and demand from other traders and reflect the crowd's real-time probability.
Market outcomes
| 100kt meteor strike in 2026? | 6% YES | 94% NO |
A natural meteoroid striking Earth's atmosphere with explosive force equivalent to 100 kilotons of TNT or greater represents a rare but non-negligible planetary hazard. Such an event would be roughly seven times more powerful than the Hiroshima bomb and comparable to the 1908 Tunguska impact. The market settles affirmatively if NASA's JPL Fireball and Bolide Data repository records an impact energy meeting or exceeding this threshold during 2026.
Historical fireball records show that impacts of 100+ kilotons occur irregularly. The Chelyabinsk meteor of 2013 released approximately 440 kilotons and injured over 1,500 people, whilst smaller bolides in the 10–50 kiloton range occur several times per decade. Across the past two decades, events exceeding 100 kilotons have been exceptionally rare—roughly one or fewer per decade on average. This historical scarcity underpins the current 5% implied probability on Polymarket's order book, reflecting a baseline expectation that such a strike remains unlikely in any given calendar year.
Traders should monitor near-Earth object tracking updates from NASA's Planetary Defense Coordination Office and ESA's Near-Earth Object Coordination Centre, particularly any revised orbital assessments of known asteroids with 2026 approach windows. The JPL Fireball repository updates continuously as atmospheric detection networks process data, so resolution will depend on real-time sensor networks rather than advance warning. No scheduled asteroid close approaches of significant concern have been widely publicised for 2026, though detection of previously unknown objects remains possible.
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.
The mechanics for trading "100kt meteor strike 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.
$7K in lifetime turnover and $2K of resting liquidity puts this market in the below the median by volume for space contracts on PolyGram. Order-book depth is thin — large orders may need to be split across the book or executed as limit orders.
Last 24 hours alone saw $10 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.
As of today, traders on Polymarket price this outcome at 6%. The number updates continuously as the order book clears. PolyGram mirrors the same live odds with locale-aware formatting and USDC settlement.
Resolution is handled by the UMA optimistic oracle on Polygon. A proposer submits the outcome, a 2-hour dispute window opens, and if uncontested the payout is final. Contested outcomes escalate to UMA token holders.
This prediction market is scheduled to close on 31 December 2026. After the resolving event occurs, settlement typically clears within 24 hours once the UMA optimistic oracle confirms the outcome. All payouts are in USDC on the Polygon network.
To trade on this prediction market, create a free PolyGram account at polygram.ink, deposit USDC via Polygon, and place a YES or NO order on the outcome you believe in. You can learn more on our how-it-works page. Your maximum loss is limited to your stake — there is no leverage or margin.
When the outcome is determined, winning YES shares pay out $1.00 each in USDC, while losing shares pay $0. Settlement is handled by the UMA optimistic oracle on Polygon — a proposer submits the result, a two-hour dispute window opens, and if uncontested, payouts are distributed automatically. You can withdraw your winnings to any Polygon wallet.
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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