47 forecasters

By 2100, will 2 national space agencies conclude that an interstellar object in our solar system has a non-human artificial origin?

1%chance

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Authors:

Opened:

Nov 24, 2021

Closes:

Jul 2, 2063

Scheduled resolution:

Jan 1, 2100

Spot Scoring Time:

Nov 26, 2021

Natural Sciences

Manhattan-sized interstellar object 3I/ATLAS now turning green as something is ‘switched on’ as it nears Sun

New York Post•Sep 12, 2025

Interstellar overhype: Nasa debunks claim about alien-made comet

Guardian•Sep 11, 2025

Mysterious interstellar object is morphing in unexplained ways as it moves closer to Earth

Daily Mail•Sep 10, 2025

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