Dedicated at the University of Chicago on October 10, 2016. In 1946, Willard Libby proposed an innovative method for dating organic materials by measuring their content of carbon-14, a newly ...

For decades, scientists have relied on tree rings to estimate how long trees can live. But new research suggests that this widely used method may have been underestimating the lifespan of many ...

“It’s like a time machine. So we can shake hands with these people from 2,000 years ago, and we can put them in time much better now,” said Professor Mladen Popović, University of Groningen, in ...

Kyrenia Ship Hull during excavation. Kyrenia Ship hull on the seabed off northern Cyprus during underwater excavation in the later 1960s. Updated radiocarbon calibration techniques provide improved ...