Saturday - April 19, 2025
University of Arizona: Study Sheds Light on Ancient Solar Activity Using Radiocarbon Locked in Tree-rings
April 12, 2025
TUCSON, Arizona, April 12 -- The University of Arizona issued the following news release:

* * *

Study sheds light on ancient solar activity using radiocarbon locked in tree-rings

Researchers have used tree-rings to learn more about how the sun behaved more than 2,000 years ago.

By analyzing radiocarbon locked over millennia in tree-ring samples, scientists from the University of Arizona Laboratory for Tree-Ring Research and ETH Zurich in Switz . . .

Targeted News Service Document Request Form

This document is available to you by e-mail if you complete the form below with relevant information. There may be a fee for this article or ongoing service of similar materials. We will be in touch shortly.

Name:
What's your
Affiliation		 Government Newspaper / Media Business
Public Policy Individual / Student Educators
Email:
Phone:
Organization, if any:
State/Country you are in:
Additonal questions
or comments:

Click here for more information about our products

Click here for more information about our products