School of Physics Professor Ignacio Taboada provided brief commentary on KM3NeT, a new underwater neutrino experiment that has detected what appears to be the highest-energy cosmic neutrino observed to date.

“This is clearly an interesting event. It is also very unusual,” said Taboada, spokesperson for the IceCube experiment in Antarctica. IceCube, which has a similar detector-array design as KM3NeT but is encased in ice rather than water, has detected neutrinos with energies as high as 10 PeV, but nothing in 100 PeV range. “IceCube has worked for 14 years, so it’s weird that we don’t see the same thing,” Taboada said. Taboada is not involved in the KM3Net experiment. 

The KM3NeT team is aware of this weirdness. They compared the KM3-230213A event to upper limits on the neutrino flux given by IceCube and the Pierre Auger cosmic-ray experiment in Argentina. Taking those limits as given, they found that there was a 1% chance of detecting a 220-PeV neutrino during KM3NeT’s preliminary (287-day) measurement campaign. 

This also appeared in Scientific American and Smithsonian Magazine.

Physics Magazine

Marvin Whiteley, professor in the School of Biological Sciences, has been named the new editor in chief of mBio, an open-access journal that explores the interconnected microbial world and publishes research in microbiology and allied fields. Whiteley’s term will begin on July 1, 2025. 

American Society for Microbiology

National Weather Service staff cuts may put lives at risk, meteorologists say

The firings of hundreds of National Weather Service employees will affect local forecasters’ ability to warn the public about dangerous weather, local meteorologists warn. And that could have deadly consequences when there are tornado outbreaks or an approaching hurricane, some say.

Georgia Tech’s Dean of the College of Sciences, Susan Lozier, says the weather forecasts aren’t just useful for those planning outdoor activities.

“It goes beyond protecting people and personal property, which is great. But it just impacts so many corners of our economy,” Lozier said. “Transportation relies on the weather. Do we really want the safety of our skies dependent on private industry? Or our armed forces? There are just amazing stories about how accurate weather forecasting has won battles."

The Atlanta Journal-Constitution

The Board of Regents of the University System of Georgia named Robert Scott president of Albany State University, effective May 1, 2025. Scott, who holds a Ph.D. in cellular and molecular biology from the Georgia Institute of Technology, will return to higher education after almost two decades working in the private sector. 

University System of Georgia, External Affairs

A shallow magnitude earthquake shook parts of middle Georgia earlier Tuesday evening, less than half a day after tremors were felt in northwest Georgia in Chattooga County.

11Alive meteorologist Melissa Nord (EAS 2013) spoke with a Georgia Tech seismologist, who explained Northwest Georgia is the state's most active seismic region. It is located within the Eastern Tennessee Seismic Zone, which experiences frequent, small earthquakes. 

Zhigang Peng, professor of geophysics in the School of Earth and Atmospheric Sciences, recently co-authored a research study on the frequency of earthquakes in this Eastern Tennessee Seismic Zone.

"We connected all of the data that has been recorded in that region over the past 15 years or so. And then we carefully relocated, trying to determine exactly where they're located. And after we did that, we found out that many of them occur in small kind of ligament, which is probably an indication that there are some small faults," Peng said. 

It's possible that Tuesday's earthquake in northwest Georgia was one of those small ligaments or faults, but Dr. Peng said he'd need to investigate further. 

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