Ancient, engraved stones may have been buried to summon the sun
Ice cores hint at a volcanic eruption around the time of the burial in Stone Age Denmark

More than 100 engraved stones unearthed in Denmark depict images of the sun. The stones, including the two shown here, may have been buried as part of a ritual to bring back the sun after a volcanic eruption, researchers say.
John Lee/National Museum of Denmark, R. Iversen et al/Antiquity 2025