Mysterious medieval stone disks unearthed in Ukraine were likely used by the Vikings as solar compasses to navigate the seas, a new study says. The eight unique discs, made from the easy-to ...

During their prime, the Vikings mastered the seas and went on to make wide-spanning voyages by boat. But how exactly did they know where they were going? A recent study, focused on a set of medieval ...

Mysterious medieval stone disks unearthed in Ukraine were likely used by the Vikings as solar compasses to navigate the seas, a new study says. The eight unique discs, made from the easy-to-process ...