Cosmic rays have revealed an underground Greek tomb in Naples, Italy.
Cosmic rays and lasers have revealed that deep underneath the city streets of Naples, Italy, lie the remains of the Greeks who originally settled the area, as well as the catacombs of Christians who lived there during the Roman era nearly two millennia ago, a new study finds.
But the layers of contemporary buildings make it difficult to access ancient sewers, cisterns and tombs 33 feet underneath the streets, so a group of Italian and Japanese researchers hypothesized that they could identify previously unknown burial hypogea from the Hellenistic period using 21st-century techniques.
However, placing the particle detectors requires some strategizing to catch the muons' movement. The researchers were most interested in scanning the Hellenistic necropolis, located about 33 feet under the current surface, which meant finding a stable place even deeper than that to set up the equipment, which looks a little like a flatbed scanner.
Muography revealed an excess of muons in the data that can be explained only by the presence of a new burial chamber. The chamber's area measures roughly 6.5 by 11.5 feet , according to the study, and its rectangular shape indicates it is human-made rather than natural.
France Dernières Nouvelles, France Actualités
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