ArchaeologyWhy societies become more vulnerable over timePre-modern states and civilisations became more prone to collapse as time passed – a pattern that holds lessons for today's ageing global powers.FutureArchaeologists start work at Dover Beacon siteCanterbury Archaeological Trust said it could find Roman, Anglo-Saxon and medieval deposits.The beach where people keep finding human bonesHuman remains have been discovered multiple times along one stretch of Welsh coastline.WalesWatch: Ancient bones may be thousands of years oldThe remains may be the victims of a 1st Century massacre or the dead from a shipwreck, says historian.WalesSuspected ancient human remains found at beachExperts believe they belong to shipwreck victims from the 16th and 17th centuries. WalesAncient henge discovered near medieval abbeyThe henge showed the location was a sacred space at different times over millennia, experts say.LincolnshireStonehenge research explores possible Moon connectionResearchers are investigating whether the ancient monument aligns with a major lunar standstill.EnglandRoman coffin to be displayed for the first timeAnalysis reveals the coffin contained a high-status woman and the partial remains of a child.Leeds & West YorkshireDazzling artwork found at ancient city of PompeiiArchaeologists unearth significant new paintings in the ancient Roman town buried by a volcano in AD79.Science & Environment