The Face on Mars (Viking 1, 1976): What appeared to be a human face on the Martian surface triggered wild speculation-AI image recognition later.
The Saturn Hexagon (Cassini Mission): The observation of a giant hexagonal storm at Saturn's north pole remains unexplained.
The Wow! Signal (1977): NASA's AI-assisted audio analyses have still not matched this intense radio signal
Black Knight Satellite: It has been claimed that it is the remains of an alien spacecraft orbiting Earth.
Jellyfish UFO: An image of a glowing "jellyfish" captured by astronauts-still no explanation.
