Featured Post from University of Delaware

UD physicists track one of the most powerful solar flares in nearly two decades

The physicists are seeing a roughly 65% increase in ground-level radiation, which is possibly the largest since 2006.

Nov 12, 2025

2 min

A massive solar flare – possibly the strongest recorded in nearly 20 years – has unleashed a wave of charged particles toward Earth, sparking radio blackouts across parts of Africa and Europe and triggering measurable increases in radiation levels worldwide.

At the University of Delaware, physicists Pierre-Simon Mangeard and John Clem are closely monitoring the event through UD’s neutron monitor network, a global system that tracks cosmic radiation from observatories in Newark, Greenland, Canada, Antarctica and Hawaii.

“This is a significant event, still in progress,” said Mangeard.

The physicists are seeing a roughly 65% increase in ground-level radiation, which is possibly the largest since 2006.

These elevated readings are known as a Ground Level Enhancement (GLE) – a rare occurrence caused by high-energy particles accelerated by solar flares that penetrate Earth’s magnetic field and reach the surface. The data being collected now will help researchers better understand how such bursts of solar activity impact Earth’s atmosphere, communications systems and even aviation safety.

Clem and Mangeard’s work at UD’s Bartol Research Institute and Department of Physics and Astronomy contributes to global efforts to monitor and predict space weather events, including solar storms and coronal mass ejections. The team’s continuous, real-time data help scientists worldwide assess potential disruptions to satellites, power grids and high-altitude flights.

As analysis of this flare continues, UD’s neutron monitor network will remain a key resource for understanding how space weather events ripple through our planet’s systems.

Experts available for interviews:

• Pierre-Simon Mangeard, research associate, Department of Physics and Astronomy

• John Clem, associate professor, Department of Physics and Astronomy

To contact Mangeard or Clem, email mediarelations@udel.edu.

Find Experts

Aug 26, 2026

1 min

How Trade Wars Are Reshaping Fashion and Apparel

Trade disputes and tariffs have become an increasingly common part of the global economic landscape, with the fashion and apparel industry often caught in the crossfire. University of Delaware professor Sheng Lu can explain how these disruptions reshape sourcing decisions, supply chains, prices and the products ultimately available to consumers. Lu can discuss: • How new tariffs, including those on Canadian jackets and wool products, could affect consumers, fashion companies and apparel supply chains. • How tariffs can affect apparel prices and product availability for U.S. consumers. • Why fashion and apparel supply chains are particularly vulnerable to trade policy changes. • The impact of trade disputes on fashion companies and retailers in the U.S. and abroad. • What previous trade disputes can tell us about the potential consequences of tariffs. To arrange an interview, visit Lu's profile and click on the “contact” button. Interested reporters can also email MediaRelations@udel.edu.

Aug 25, 2026

1 min

Epidemiologist Available to Discuss Measles, Vaccination and Infectious Disease Outbreaks

As measles cases continue to rise in the United States, University of Delaware epidemiologist Jennifer Horney is available to discuss measles outbreaks, vaccination, vaccine hesitancy and the challenges of preventing the spread of highly contagious infectious diseases. The deaths of two unvaccinated Pennsylvania residents from measles — the first measles deaths in the state in 35 years — underscore the continuing public health risks posed by the disease. Horney, a former member of the Centers for Disease Control and Prevention’s Board of Scientific Counselors, is an experienced epidemiologist who studies infectious disease outbreaks and public health preparedness. Horney can discuss: • Measles outbreaks and transmission: Why measles is among the most contagious infectious diseases and how outbreaks spread. • Vaccination: The effectiveness of the MMR vaccine and the importance of maintaining high vaccination rates. • Vaccine hesitancy and misinformation: What influences vaccination decisions and how public health messaging affects perceptions of vaccine and infectious disease risks. • Measles prevention and treatment: Why outbreaks can reemerge when vaccination coverage falls, and the role and limitations of vitamin A and other treatments. • Outbreak response and preparedness: How public health officials investigate and respond to measles and other infectious disease outbreaks, and what can be learned from previous outbreaks. To reach Horney directly and arrange an interview, visit her profile and click on the “contact” button. Interested reporters can also email MediaRelations@udel.edu.

Aug 10, 2026

1 min

Experts on earthquake response, community recovery and building safety

The shaking from a major earthquake may be over in minutes, but its consequences will last for years. University of Delaware experts can address emergency response, distributing aid, assessing damaged buildings, helping vulnerable communities and planning for long-term recovery. Their expertise is particularly relevant as communities across Latin America respond to major earthquakes, including the deadly magnitude 7.4 earthquake in Colombia. Tricia Wachtendorf, co-director of UD’s Disaster Research Center, offers expertise on how governments, nonprofits, emergency responders and community groups coordinate following a major disaster. Her research examines the role of spontaneous or “emergent” groups, humanitarian aid and donations, and how communities and organizations respond in the aftermath of disasters. Jennifer Trivedi, associate professor of anthropology and Disaster Research Center faculty member, specializes in disaster vulnerability and why some communities are more severely affected than others. She also addresses the long-term recovery needs and planning that emerge after the immediate crisis. Michael Chajes, professor of civil and environmental engineering, provides expertise on the structural damage caused by earthquakes, why some buildings collapse while others withstand the shaking and how engineers assess damaged structures and improve earthquake resilience. To arrange an interview with one of these experts, visit their profiles and click on the contact button. Interested reporters can also email MediaRelations@udel.edu.