Huffington Post: Hundreds of mysterious yellow orbs have been found beneath Mexico’s Temple of the Feathered Serpent. The once-metallic spheres were discovered by a robot named Tláloc II-TC, which was deployed by archaeologists exploring a tunnel and series of chambers beneath the ancient ruins. Jorge Zavala, an archaeologist with Mexico’s National Anthropology and History Unit told NBCNews Science: “They look like yellow spheres, but we do not know their meaning. It’s an unprecedented discovery.”
The balls range from 1.5 to 5 inches in circumference, have a core of clay and are covered with a yellow material called jarosite. Of the jarosite spheres, Gomez says: “This material is formed by the oxidation of pyrite, which is a metallic ore. It means that in pre-hispanic times they appeared as if they were metallic spheres. There are hundreds of these in the south chamber.”.
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