Using hyperspectral cameras, researchers are able to see subtle differences in the red pigments of the rock art that are invisible to the naked eye.

Towering over the shore of Lake Yövesi near Ristiina, Finland, is a cliff covered in prehistoric rock art. The site, known as Astuvansalmi, features around 80 paintings of humans, animals, and other figures that date back some 5,000 years.

Now, thanks to the latest imaging technology, scientists are uncovering new patterns on the rocks. Hyperspectral cameras are picking up previously unknown images and revealing even more information about the existing art, such as how the pigments changed over time. This research is also creating a digital archive of the site, virtually preserving it for future generations.

How New Imaging Technology Is Re

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