Will the US confirm that aliens exist by 2027?

Platform comparison

Active sub-markets

Market context

The key event is a **formal US government statement** by the President, a Cabinet member, the Joint Chiefs, or a federal agency that definitively says extraterrestrial life or technology exists before 31 December 2026. Recent releases on UFOs and UAPs have not met that bar: the Pentagon’s May 2026 file drops, reported by the BBC, said the material did not provide evidence of alien technology or extraterrestrial life, and Pentagon spokesperson Sean Parnell said the documents contained no such evidence, which helps explain why the market has stayed well below even 50%.[2][1]

That low single-digit-to-10% type pricing is consistent with the historical record. Congress has held high-profile UFO hearings, and former officials have made claims about “non-human biologics”, but the Pentagon has repeatedly said it found no verifiable information supporting reverse-engineering or extraterrestrial-material claims.[4] For traders, the decisive catalysts are not more ambiguous footage, but explicit language in an official announcement, a scheduled press briefing, a hearing transcript, or a published agency report that plainly confirms extraterrestrial life or technology. Under the market rules, broad UFO disclosure, unresolved UAP files, or officials saying evidence is insufficient would still resolve to No.[1][2]

The regulatory and access angle matters here as well. A market hosted by a US-facing venue can sit within the CFTC’s practical reach where it involves event contracts, while German GlüStV rules are relevant because German gambling law can affect whether residents are treated as eligible users and how access is restricted. “No-KYC up to $1,500” means a user can usually trade up to that cumulative threshold with only basic account setup before identity checks become necessary, which lowers friction for small positions but does not change the underlying settlement standard for this market.

Sources: 1 · 2 · 3 · 4 · 5

Methodology

We track Will the US confirm that aliens exist by 2027? on the five venues with material liquidity for prediction markets. Live odds come from the Polymarket Polygon order book — the only source that ships real-time data under an open licence. For Kalshi, Betfair and Manifold we list platform attributes (fee, KYC, settlement, payment) instead of fabricated odds, because their APIs use non-comparable contract definitions.

Resolution & payout

At resolution the UMA oracle takes over: a proposer posts the outcome with a bond, any token holder can dispute within two hours. Without dispute the result is accepted and the smart contract distributes USDC instantly.

On Kalshi (CFTC-regulated) resolution runs through their in-house clearing engine in USD. Betfair Exchange settles after match end in the account's local currency. Manifold pays no cash — only its in-platform "mana" currency.

FAQ

Is this market available outside the US?

Polymarket KYC UK is available in most jurisdictions where Polymarket isn't directly accessible. Polymarket itself is geo-blocked in the US/UK/EU. Always check local regulations.

How does resolution work?

Through the UMA Optimistic Oracle on Polygon: a proposer submits the outcome, a two-hour challenge window opens, and USDC payouts settle automatically once the result is final.

What's the difference between YES and NO shares?

A YES share pays $1.00 if the event happens, $0 otherwise. A NO share pays $1.00 if the event doesn't happen. The market price between 0¢ and 100¢ is the implied probability.

How fast are USDC deposits?

Polygon credits deposits after 12 confirmations — usually under 30 seconds. Withdrawals follow the same path and land back in your wallet within minutes.

Do I need to KYC for this market?

Not under $1,500 of lifetime trading volume. Above that threshold, Polymarket KYC UK triggers a quick verification flow that finishes in minutes.