Open
Science & Tech
Polymarket
Will the US confirm that aliens exist by...?
Top outcomes
December 31
10%
September 30
6%
June 30
1%
May 31
0%
This market will resolve to "Yes" if the President of the United States, any member of the Cabinet of the United States, any member of the Joint Chiefs of Staff, or any US federal agency definitively states that extraterrestrial life or technology exists by December 31, 2026, 11:59 PM ET. Otherwise, this market will resolve to "No".
The primary resolution source for this market will be official information from the government of the United States, however a consensus of credible reporting will also be used.
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$52.8M Vol.
Closes Dec 31, 2026
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Top outcomes by win probability — price history from Polymarket, updates when you refresh.
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$52.8m Vol.
All outcomes
Pick Yes or No on any outcome, then explain your pick below. Reputation-only — no money or trading.
$52.8M Vol.
December 31
10% market probability
10%
$refs['reasoning-0']?.focus())"
>
Yes 10%
+90 / −10
$refs['reasoning-0']?.focus())"
>
No 90%
+10 / −90
September 30
6% market probability
6%
$refs['reasoning-1']?.focus())"
>
Yes 6%
+94 / −6
$refs['reasoning-1']?.focus())"
>
No 94%
+6 / −94
Explain your Yes on September 30
Explain your No on September 30
(optional)
0 / 2,000
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June 30
1% market probability
1%
$refs['reasoning-2']?.focus())"
>
Yes 1%
+99 / −1
$refs['reasoning-2']?.focus())"
>
No 99%
+1 / −99
Explain your Yes on June 30
Explain your No on June 30
(optional)
0 / 2,000
Share the argument behind your pick — visible in the public forecast feed.
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May 31
0% market probability
0%
$refs['reasoning-3']?.focus())"
>
Yes 0%
+100 / −0
$refs['reasoning-3']?.focus())"
>
No 100%
+0 / −100
Explain your Yes on May 31
Explain your No on May 31
(optional)
0 / 2,000
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April 30
0% market probability
0%
$refs['reasoning-4']?.focus())"
>
Yes 0%
+100 / −0
$refs['reasoning-4']?.focus())"
>
No 100%
+0 / −100
Explain your Yes on April 30
Explain your No on April 30
(optional)
0 / 2,000
Share the argument behind your pick — visible in the public forecast feed.
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March 31
0% market probability
0%
$refs['reasoning-5']?.focus())"
>
Yes 0%
+100 / −0
$refs['reasoning-5']?.focus())"
>
No 100%
+0 / −100
Explain your Yes on March 31
Explain your No on March 31
(optional)
0 / 2,000
Share the argument behind your pick — visible in the public forecast feed.
Post forecast
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