Experts in the News

In a video interview published by 11 Alive, School of Chemistry and Biochemistry faculty Mike Evans explains the science behind two classic summer traditions: fireworks and grilling.

Thursday’s meteor captivated many across the Southeast, but perhaps no one was quite as thrilled as the amateur meteorite chasers who track down bits of space rock and the astronomy researchers whose lifework is analyzing space activity.

Toshi Hirabayashi, a Georgia Tech associate professor who studies space operations, celestial mechanics, and planetary science, quickly began analyzing videos of the fireball Thursday “just for fun.”

Based on his rough calculations, the object was moving “definitely faster than 10 miles per second” or roughly 36,000 mph, he said.

While it’s fun to see smaller meteorites hit the Earth, it’s critical to prepare for when a larger meteor comes blazing in and does real damage. In 2013, a meteor the size of a house exploded 14 miles above Russia, Hirabayashi said.

“We are working so hard to monitor, as well as develop technologies to defend Earth,” he said.

Hirabayashi was also cited in articles published by FoxWeather and WSB TV.

Researchers at the Georgia Institute of Technology and India's National Center for Biological Sciences have found that yeast clusters, when grown beyond a certain size, spontaneously generate fluid flows powerful enough to ferry nutrients deep into their interior.

In the study, "Metabolically driven flows enable exponential growth in macroscopic multicellular yeast," published in Science Advances, the research team — which included Georgia Tech Ph.D. scholar Emma Bingham, Research Scientist G. Ozan Bozdag, Associate Professor William C. Ratcliff, and Associate Professor Peter Yunker — used experimental evolution to determine whether non-genetic physical processes can enable nutrient transport in multicellular yeast lacking evolved transport adaptations.

A similar story also appeared at The Hindu.

Imagine your memories, way of thinking, and who you are being saved into a computer system. Not as a backup, but as a fully conscious version of yourself. Without a body, but with a mind. Sounds like science fiction? That’s exactly what mind uploading to a computer is. It’s an attempt to create a digital existence that can last forever.

In a virtual world where physics operates on different principles, a digital consciousness could eat virtual food, fly, travel to planets, or pass through walls. 

Limitations? Only those imposed by technology and the current state of knowledge. Associate Professor Dobromir Rahnev from the Georgia Institute of Technology’s School of Psychology does not rule out this possibility.

“Theoretically, mind uploading is possible. However, we are currently very far from this goal,” he writes in The Conversation.

Georgia Tech alum Miriam Guthrie (EAS 2025) answers a reader question about her experiences as a meteorologist intern at The Weather Channel and shares advice on how to prepare for a career in meteorology. Here is an excerpt of her response: 

“A passion for weather is important [and] I would suggest really focusing on your math and science classes to prepare for the right school. When you're taking those hard math classes and you feel like you want to give up, remembering why you're passionate about this is really gonna help.

“I decided to go to Georgia Tech because it's a really good school for math and science, and I knew that that was something that I wanted to pursue. 

“My time at the Weather Channel so far has been awesome. I love teaching people about the weather, and it's been exciting the past few days with the first hurricane of the year, Hurricane Erick, just with the chaos of it all. It's a fun job, but it is a chaotic kind of fun.”

Friday marks the official start of summer and with the changing of the seasons comes a significant shift in the weather pattern. After weeks of an unusually wet pattern, temperatures are expected to climb into the mid-90s throughout the coming week. 

This transition poses particular challenges for those unaccustomed to the high temperatures. Mike Sawka, an adjunct professor at Georgia Tech’s School of Biological Sciences who studies heat adaptation in athletes and workers, emphasized the importance of gradual acclimatization.

"You can do quite a bit in four days, but you basically adapt to what you [are] exposed to," Sawka explained. "We usually use a rule of thumb that after eight to 10 days, you're pretty well adapted to whatever you've been exposed to."

Sawka was cited in a similar story about acclimatization, published by 11 Alive on June 24.

Warming waters are causing the colors of the ocean to change — a trend that could impact humans if it were to continue, according to new research.

Satellite data shows that ocean waters are getting greener at the poles and bluer toward the equator, according to a paper published Thursday in the journal Science by a research team that included Haipeng Zhao, postdoctoral fellow in the School of Earth and Atmospheric Sciences (EAS), and Susan Lozier, College of Sciences Dean, Betsy Middleton and John Clark Sutherland Chair, and EAS professor. 

The change in hue is being caused by shifting concentrations of a green pigment called chlorophyll, which is produced by phytoplankton

The presence of chlorophyll in open ocean is a proxy for concentrations of phytoplankton biomass. The colors indicate how chlorophyll concentration is changing at specific latitudes, in which the subtropics are generally losing chlorophyll, and the polar regions — the high-latitude regions — are greening, the researchers said.

Similar stories appeared at San Francisco Chronicle, Miami Herald, Oceanographic Magazine, Earth.com, and Good Morning America.

A volcano seems to have been identified near the rim of Jezero crater on Mars, which is being explored by NASA’s Perseverance rover. The rover has been collecting samples that were intended to be returned to Earth as part of the Mars Sample Return mission in the 2030s.

Some of the material in the samples was thought to have been volcanic, including signs of lava flows. Now, James Wray, professor at Georgia Tech’s School of Earth and Atmospheric Sciences, and his colleagues have found a possible source – a dormant volcano on the south-eastern rim of Jezero named Jezero Mons.

High-resolution imagery from Mars orbiters have revealed fine-grained material on the mountain, consistent with ash from a volcano. The size and shape of Jezero Mons – 21 kilometres wide and two kilometres tall – also matches similar volcanoes on Earth.

“An igneous volcano interpretation seems most consistent with the observations,” says Wray, one fuelled by magma from below the surface. “It’s the strongest case we can make without actually walking across it.”

By counting craters near the volcano, Wray and his team estimate that Jezero Mons may have last erupted as recently as 1 billion years ago, possibly flinging ash, lava and rocks into Jezero crater, even as far as Perseverance’s landing site.

Similar stories appeared at 11 Alive, Science Alert, Earth Sky, ZME Science, and Gizmodo. 

David Hu, professor in the Schools of Biological Sciences and Mechanical Engineering, drew on ant behavior in his commentary of a study that examined towering behavior in nematodes.

Ants, which assemble to form buoyant rafts to survive floodwaters, are among the few creatures known to team up like nematodes, said Hu.

“Ants are incredibly sacrificial for one another, and they do not generally fight within the colony,” Hu said. “That’s because of their genetics. They all come from the same queen, so they are like siblings.”

Notably, there has been a lot of interest in studying cooperative animal behaviors among the robotics community, Hu said. It’s possible that one day, he added, information about the complex sociality of creatures like nematodes could be used to inform how technology, such as computer servers or drone systems, communicates.

Three years after the Kashlan triplets graduated from Georgia Tech together at 18 years old with B.S. in Neuroscience degrees, they are now entering medical school.

Zane, Rommi and Adam Kashlan spoke with 11Alive on Friday, giving an update on what's next after sharing the graduation stage in high school as valedictorians and earning neuroscience degrees with minors in health and medical sciences in college. 

Venus is famous for its "pancake domes" — steep-sided volcanoes that rise from the planet's surface like circular welts. In a paper published in the Journal of Geophysical Research: Planets, a research team that included School of Earth and Atmospheric Sciences postdoctoral fellow Madison Borrelli suggested that these unusual dome-shaped structures are at least partly sculpted by the planet's upper crust, which seems more flexible in certain regions.

To determine how a bendy crust could affect the formation of a pancake dome, Borrelli and her colleagues at universities in France and the U.S. focused on the only dome for which they had high resolution data: the Narina Tholus, an 88.5-mile-wide (55 kilometers) dome located on the circumference of the Aramaiti Corona, one of the many giant oval structures that pockmark Venus' surface.

Borrelli hopes that upcoming missions to Venus — like NASA's VERITAS program — will provide higher resolution topography of the planet's surface, allowing the researchers to test their model with more data.

Similar stories appeared at Daily Galaxy, Extreme Tech, and Newsbytes.

As part of The Conversation’s Curious Kids series, Dobromir Rahnev, associate professor in the School of Psychology, answered a question regarding the the possibility of uploading the consciousness of the mind into a computer: "As a brain scientist who studies perception, I fully expect mind uploading to one day be a reality. But as of today, we’re nowhere close". Read Rahnev's full response.