The Columbia observatory and research institution welcomed more than 2,000 visitors for its special 75th anniversary ...

But there's much more information to be gleaned from growth rings than simply a tree's age. This information comes to us through the science of dendrochronology. Tree rings can reveal more than ...

Study tracking climate patterns across thousands of years found that periods of lower rainfall coincided with some major political upheavals.

It actually experiences a growth spurt—with new cells growing between the previous year's tree ring and the tree's bark. The cells that grow during this initial period are large. As the season ...

The most familiar of these so-called biochronologies are tree rings, which form every year in response to seasonal cycles in temperature and rainfall. Dendrochronology—the art of tree-ring ...

ABOVE: ©istock.com, Mehmet Gökhan Bayhan T o tell the age of a tree, you count its rings. Most people know that. But few people know that the rings in trees can tell us much more than just a tree’s ...

If you would like to see more of our reporting, please consider subscribing. 1. Tibetan tree rings link climate change and fall of major Chinese dynasties Researchers have used tree rings to track ...

Similar to tree rings determining a tree's age, fire scars help scientists learn how many fires happened in the area and when. TUCSON, Ariz. (KGUN) — It might surprise you to learn wildfire ...