Featured Post from University of Rochester

Weird and complex life emerged on Earth as the planet's magnetic field gave way

The Earth’s magnetic field protects life, but an ancient phase when it nearly collapsed coincided with a key step in evolution, says University of Rochester geophysicist John A. Tarduno.

Apr 8, 2025

1 min

The Earth’s magnetic field plays a key role in making the planet habitable. It shields lifeforms from harmful solar and cosmic radiation. It helps limit erosion of the atmosphere and keeps water from escaping into space.


CaptionResizeWrap TextRemove


But new data show a prolonged near collapse of Earth’s magnetic field that took place some 575-565 million years ago coincided with the blossoming of macroscopic complex animal life.


We now face the possibility of a new, unexpected twist in how life might relate to the magnetic field, says John A. Tarduno, the William R. Kenan Professor of Geophysics and the dean of research at the School of Arts and Sciences and the Hajim School of Engineering and Applied Sciences at the University of Rochester.


“That twist could reach deep into Earth’s inner core,” says Tarduno, who recently wrote about the findings for Physics Today magazine.


Tarduno is frequently cited by news outlets, like CNN, The Washington Post, and Smithsonian magazine, on matters related to the Earth’s inner core, or dynamo, and magnetic field. He can be reached at john.tarduno@rochester.edu.


You might also like...

Check out some other posts from University of Rochester

1 min

Covering the Conclave? Our Expert Can Help.

The world is watching the Vatican as cardinals from across the globe gather for the papal conclave. The monumental event, which involves cardinals closing themselves off in the Sistine Chapel to elect a new pope, is steeped in history, mystery, and speculation. The new pontiff will be expected to make difficult decisions about the future direction of the Catholic church, which has almost 1.4 billion followers worldwide, and address the Vatican's strained finances and its sexual abuse scandals. If you're a reporter looking for an expert who can provide valuable insight, perspective and opinion on any angle of the events unfolding in Vatican City, consider reaching out to Jack Downey, the John Henry Newman Professor of Roman Catholic Studies at the University of Rochester.  Downey and his scholarship have been featured in media outlets such as The Washington Post, National Public Radio, and Time Magazine. Simply click on his icon now to arrange an interview today.

1 min

Hidden History of Bermuda is Reshaping the Way We Think About Colonial America

Early colonialism in the Americas tends to conjure images of Jamestown and Plymouth Colony. But long before settlers there acclimated to the New World’s growing conditions and overcame starvation conditions, an English settlement established in Bermuda in 1612 was wealthy and prosperous. University of Rochester historian and archaeologist Michael Jarvis has been uncovering the hidden history of Smith’s Island in Bermuda and its pivotal role in reshaping the understanding of colonial America. Nicknamed “Chainsaw Mike” by his students, he has spent 14 years excavating Smith’s Island and one of the first English settlements in the New World. Jarvis argues that Bermuda’s role in supplying Jamestown with food and influencing early colonists make it a cornerstone of America’s origin story rather than the historical footnote to which it has largely been relegated. His research on Smith’s Island was recently the cover story of Smithsonian magazine and was featured on the History Unplugged podcast. Jarvis is an expert on colonial America, the international and intercolonial networks of trade at the time, and settlement patterns in eastern North America, Bermuda, the Bahamas, and the communities surrounding European gold- and slave-trade forts in West Africa. He can be reached at 585-275-4558 and michael.jarvis@rochester.edu.

1 min

Research Matters: Targeting ‘jumping genes’ holds promise for treating age-related diseases

A growing number of clinical trials gauging the effects of inhibiting transposons, so-called “jumping genes,” have yielded encouraging results for treating Alzheimer’s and a wide range of other conditions. Vera Gorbunova, a molecular biologist at the University of Rochester whose research on the causes of aging and cancer is widely regarded as pioneering, says researchers tackling aging “need something new, and inhibiting transposons shows great promise.” Gorbunova’s comments were recently featured in Science magazine, a leading news outlet for cutting-edge research in all areas of science. Researchers say clinical trials of transposon inhibitors are important not just to identify potential treatments, but also to test whether jumping genes do, in fact, drive human diseases, as many suspect. Transposon genes are found in a diverse variety of organisms, from miniscule bacteria to humans, and they are known in biological terms as “transposable elements” because they literally jump around the genome. Their vagrancy has been implicated in illnesses such as lupus, Parkinson’s disease, cancer, and aging. Gorbunova is a recognized expert in aging and cancer whose research has been featured in high-profile publications ranging from Nature to The New York Times. Reach out to Gorbunova by clicking on her profile.

View all posts
Powered by