Archaeologists and climate scientists from the University of Copenhagen can now show that ritual sacrifices of sun stones coincided with a large volcanic eruption that made the sun disappear throughout Northern Europe. This image shows two so-called sun stones, which are small flat shale pieces with finely incised patterns and sun motifs. They are known only from the island of Bornholm in the Baltic Sea. Credit: National Museum of Denmark Volcanic eruptions shaped the destinies of ancient European societies, leading to dramatic cultural shifts and the emergence of sun worship practices among Neolithic communities. Archaeological findings, including the mysterious sun...