Category Archives: 3D scatter plots

Tracing origin of Atacama ‘alien’ skeleton: A PCA step-by-step example

They found Ata 15 years ago in a deserted Chilean town. She resembled no one on Earth. She had features that would make James Cameron immediately call his director of photography: angular skull, disproportionately large head, and slanted eyes. She was indeed featured in a documentary film about UFOs and… Read more »