The exhibition is at the Ulster Museum and will run until the beginning of June 2018.
Speaking ahead of the exhibition launch and about the research project, Dr Cesario said: “This research project renegotiates the meaning and importance of medieval science and demonstrates how medieval records of comets can help test the theory of the existence of the elusive ‘Planet Nine’. Looking at records of comets in Old English, Latin, Old Irish and Russian texts we aim to show that the early medieval people actually recorded genuine astronomical observations, reflecting their interest in cosmology and understanding of the heavens.
“The idea for this study came about from the strong desire to challenge the common assumption and perceived lack of scientific enquiry in the early Middle Ages, or commonly referred to as ‘Dark Ages’. This was the spark that ignited the intellectual collaboration between a medievalist and an astronomer.”
“Any strong indication that a ‘Planet Nine’ is required to fit the comet sightings recorded in the Middle Ages will be a unique result and will certainly have a remarkable impact on our understanding of the solar system.”