The collection — unparalleled in the world — is itself the very foundation of the field of dendrochronology, the science of tree-ring dating that arose at the University of Arizona out of the work of ...

An enormous solar storm that occurred 7,000 years ago has helped archaeologists to date an ancient settlement in northern Greece. A spike in radiocarbon was spotted in the wood from which these ...

A historic Hunter Creek Valley building was excavated and tree-ring dated on Friday, Sept. 20. The building, which experts think housed farm animals, is made of wood that is around two centuries old, ...

Perhaps you’ve wandered through a forest or strolled into a neighborhood park and found tree trunks — and wondered if counting the rings on a trunk is truly a way to know the tree’s age. “Most of us ...