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Science & Space Odds on Polymarket
Updated September 23, 2026 · 113 live markets · refreshed twice a day
Science, space launches, climate, pandemics and other science questions. Every live market on the topic is below, with the leading outcome's probability, its 24-hour change, trading volume and end date.
Live Science & Space markets
| Market | Leading outcome | 24h change | 24h volume | Ends |
|---|
| Will the US confirm that aliens exist? | By December 31 3.2% | -0.1 pts | $856.6K | Jan 1, 2027 |
| Hantavirus pandemic in 2026? | Yes 2.9% | +0.1 pts | $67.4K | Jan 1, 2027 |
| U.S. enacts AI safety bill before 2027? | Yes 13.5% | +7.5 pts | $15.3K | Jan 1, 2027 |
| Where will 2026 rank among the hottest years on record? | 1 75% | +0.5 pts | $7.4K | Mar 2, 2027 |
| Tesla and SpaceX merger officially announced? | By December 31, 2027 65.5% | — | $4.8K | Jan 1, 2028 |
| Skin cancer vaccine BLA submitted? | By June 30, 2027? 86.5% | -1.5 pts | $4.7K | Jul 1, 2027 |
| Will there be a power grid emergency before October 1? | Central US (SPP) 2.1% | -8.1 pts | $4.4K | Oct 2, 2026 |
| Which Millennium Prize Problem will AI solve next? | Hodge Conjecture 55.5% | -6.0 pts | $3.9K | Jan 1, 2028 |
| SpaceX Starship Flight Test 14 | October 31 97.5% | -0.1 pts | $3.5K | Jul 1, 2027 |
| Confirmed US Screwworm case in Livestock beyond Texas by... | December 31 99.9%+ | +22.9 pts | $3.4K | — |
| Highest wind gust at NYC LaGuardia, September 24 to 28? | 25 kt or more 94.5% | — | $3.3K | Sep 29, 2026 |
| OpenAI announces another Millennium Prize solution? | By December 31, 2027 81.5% | — | $3.2K | Jan 1, 2028 |
| Peak wave height at NY Harbor, September 23 to 28? | 8 ft or more 97% | — | $3.1K | Sep 29, 2026 |
| Will CMI declare a Millennium Prize Problem solved by ___? | December 31, 2028 32.5% | +8.5 pts | $3.0K | Jan 1, 2029 |
| AI lab announces another Millennium Prize solution? | By December 31, 2027 82.5% | -1.0 pts | $2.1K | Jan 1, 2028 |
| Precipitation in Hong Kong in September? | <275mm 97.7% | +2.6 pts | $1.7K | Dec 8, 2026 |
| How many West Nile neuroinvasive disease cases will be reported among New York City residents in 2026? | 35 to 49 45.5% | +1.0 pts | $1.7K | Apr 1, 2027 |
| When will the first hurricane form in the Atlantic in 2026? | No Atlantic hurricane will form in September 2026 91.5% | +2.0 pts | $1.7K | Oct 1, 2026 |
| Which math problems will AI solve in 2026? | Hadamard Matrix Conjecture 32.5% | — | $1.6K | Jan 1, 2027 |
| Will a hurricane make landfall in Hawaii before 2027? | Yes 30.5% | +17.5 pts | $1.6K | Dec 31, 2026 |
| How many 6.5 or above earthquakes worldwide September 21 - September 27? | 0 56.5% | +6.0 pts | $1.4K | Sep 28, 2026 |
| Highest wind gust at Boston Logan, September 24 to 28? | 35 kt or more 57.5% | — | $1.4K | Sep 29, 2026 |
| Largest IPO by market cap in 2026? | Anthropic 53.9% | -1.9 pts | $1.3K | Jan 2, 2027 |
| Screwworm National Emergency declared? | By December 31 30% | -16.0 pts | $1.2K | Jan 1, 2027 |
| How many more Millennium Prize Problems will AI solve in 2026? | 0 49.5% | +0.5 pts | $1.2K | Jan 1, 2027 |
| Precipitation in NYC in September? | 2-3" 59.5% | +6.0 pts | $1.1K | Dec 8, 2026 |
| Precipitation in Seattle in September? | 1.5-2" 45.5% | +0.5 pts | $1.1K | Dec 8, 2026 |
| Measles cases in U.S. in 2026? | ↑3.5k 99.9%+ | — | $1.1K | Jan 1, 2027 |
| Lowest Mississippi level at St. Louis by November 30? | -3.00 to -1.01 ft 21.5% | — | $1.0K | Dec 2, 2026 |
| Ebola pandemic in 2026? | Yes 2.8% | +0.5 pts | $986 | Jan 1, 2027 |
| Trump declassifies new UFO files? | By November 30 87.5% | — | $930 | Jan 1, 2027 |
| How many Chinook will pass Bonneville Dam by October 31? | More than 550,000 89.8% | -1.5 pts | $916 | Nov 4, 2026 |
| How many 5.5 or above earthquakes worldwide September 21 - September 27? | ≤6 56.5% | +2.5 pts | $814 | Sep 28, 2026 |
| Precipitation in London in September? | 30-40mm 45.5% | — | $800 | Dec 8, 2026 |
| September 2026 Temperature Increase (ºC) | 1.30–1.34ºC 9.5% | -3.5 pts | $692 | Nov 2, 2026 |
| New pandemic in 2026? | Yes 5.5% | — | $678 | Jan 1, 2027 |
| What will the peak RONI be for the 2026–27 El Niño? | Over 2.5 78% | +0.5 pts | $662 | Apr 1, 2027 |
| How strong will Hurricane Polo be? | Category 5 97.9% | -0.4 pts | $652 | Oct 16, 2026 |
| September 2026 1st, 2nd, or 3rd hottest on record? | 2nd hottest 97.6% | +0.4 pts | $624 | Oct 1, 2026 |
| How many hurricanes will form during the Atlantic Hurricane Season in 2026? | 1-3 57.5% | +2.0 pts | $582 | Dec 1, 2026 |
73 smaller markets are not shown; all 113 are in the JSON data.
For multi-outcome markets the leading outcome is the one with the highest price; for yes/no markets it is the YES price. Prices are Polymarket share prices read as probabilities, not executable quotes.
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More Tech & AI odds
AI (165) · OpenAI (68) · Anthropic (55) · Big Tech (171) · Elon Musk (69)
Frequently asked questions
What are the Science & Space odds on Polymarket today?
As of September 23, 2026 at 15:42 UTC, Polymarket lists 113 live Science & Space markets with $1.02M traded in the last 24 hours. The most active is Will the US confirm that aliens exist? (By December 31 3.2%), followed by Hantavirus pandemic in 2026? (Yes 2.9%), U.S. enacts AI safety bill before 2027? (Yes 13.5%).
How many Science & Space markets are open on Polymarket?
113 live markets as of September 23, 2026, not counting single games and markets that close within a few hours. The table lists them by 24-hour trading volume and refreshes twice a day.
Where do these odds come from?
From Polymarket's public market data. Each probability is the displayed price of an outcome's YES share, so 60¢ reads as roughly a 60% chance. Polymarket View is independent and not affiliated with Polymarket; nothing here is financial advice.
Use this data
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