News Photos


Caption: A 4.4 billion-year-old zircon crystal is providing new insight into how the early Earth cooled from a ball of magma and formed continents just 160 million years after the formation of our solar system, much earlier than previously believed. The zircon, pictured here, is from the Jack Hills region of Australia and is now confirmed to be the oldest bit of the Earth's crust.
Credit: Image courtesy of John W. Valley
Larger PNG


Caption: A timeline of the history of our planet places the formation of the Jack Hills zircon and a "cool early Earth" at 4.4 billion years.
Credit: Timline courtesy of Andree Valley
Larger JPG

Photo use

Photographs are available to media organizations and University of Wisconsin-Madison departments for news, editorial and public relations uses, both print and electronic, that are directly related to UW-Madison. They are NOT available for generic use. For university-related use -- including textbooks, commercial products or advertising -- please contact Bryce Richter, photographer, University Communications, (608) 262-7411 or brichter2@wisc.edu.

Published photos must include a credit ("photographer's name/University of Wisconsin-Madison" or "courtesy of"). The specific credit and other details are also embedded in the digital file, which can be viewed by using Photoshop and selecting "file>file info."

None of these images may be modified, altered or used in any way that changes or misrepresents the photograph's content or overall context.