A free Charles Sturt University (CSU) Explorations series public lecture will explore the science of cultural heritage in Bathurst on Tuesday 28 October. CSU Faculty of Science Executive Dean Professor Tim Wess , will present the lecture. Professor Wess has a background in biophysics and international research in historical and archaeological artefacts, including the change in molecular structure of the Dead Sea Scrolls and the Domesday Book. He says the documents, objects, artwork and remnants of everyday life that have defined our society and culture are at risk of being lost due to the continual molecular changes that occur with ageing. "The study of these changes, and what we can and need to do to protect our future, form the basis of cultural heritage science," Professor Wess said. "This discipline also can tell us more about the provenance, history, and origin of artefacts that goes beyond the surface and visual information from objects such as paintings, sculptures and manuscripts. In the lecture I will describe the new and exciting techniques, projects and challenges of understanding the changes that pose a threat to keeping our history, and how information can be retrieved from documents which were thought to be lost to the ravages of time."