Open cases

Unsolved: what do you think?

The cases still open, with the competing explanations and a vote on each one.

Unsolved, and you decide

These 12 cases are still open: credible data, no settled answer. Each one sets out the competing explanations, with the evidence for and against, and asks what you think. The "worth watching" ones are where a real discovery would show up first.

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Worth watching

Worth watchingThe Nimitz "Tic Tac"November 2004 · Off San Diego, USANavy pilots and radar tracked a white craft that outflew their fighter jets.Vote: 5 explanationsWorth watchingThe Yemen "orb" and the Hellfire missileFilmed Oct 2024, shown Sept 2025 · Off YemenA US drone's missile hit a glowing orb and appeared to bounce off.Vote: 5 explanationsWorth watchingThe silent black triangleJune 2026 · Western USAFederal agents saw a matte black triangle hover and fly off silently.Vote: 5 explanationsWorth watchingK2-18b and dimethyl sulfideApril 2025 · 124 light years awayThe James Webb telescope found a gas that on Earth only life makes.Vote: 5 explanationsWorth watchingMars: the "leopard spots" of Cheyava FallsJuly 2024; paper September 2025 · Jezero Crater, MarsNASA's rover found the clearest sign of ancient life on Mars.Vote: 4 explanationsWorth watchingEnceladus's ocean plumes2005 to 2023 · Saturn's moonSaturn's icy moon has everything life needs.Vote: 3 explanations

Unproven

UnprovenProject Blue Book1952 to 1969 · US Air ForceThe Air Force studied thousands of UFOs and couldn't explain hundreds of them.Vote: 4 explanationsUnprovenThe "Gimbal" video2015 · US Navy, AtlanticAn object rotates against the wind in a way no aircraft can.Vote: 3 explanationsUnprovenCrash retrieval and "non-human biologics"July 2023 · US CongressA former intelligence officer testified under oath that the US holds crashed craft and non-human bodies.Vote: 4 explanationsUnprovenThe Pentagon's UAP filesMay to October 2026 · war.gov/UFOThe government finally released its UFO files, so the truth must be in there.Vote: 3 explanationsUnprovenThe Wow! signalAugust 1977 · Big Ear telescope, OhioA 72-second radio burst was the best alien signal ever received.Vote: 3 explanationsUnprovenPhosphine on VenusSeptember 2020 · VenusA gas made by microbes on Earth was found in Venus's clouds.Vote: 4 explanations