Episodes
Astronomers and physicists aren’t freaking out. Okay, well maybe just a little. New data from the James Webb Space Telescope is making them question just about everything.
Published 04/11/24
Published 04/11/24
Here in the U.S., many of us are eagerly awaiting the April 8th, 2024 total solar eclipse, the last of its kind to cross our paths (at least in the contiguous U.S.) until the year 2045. Austin, Texas, where we produce Point of Discovery, is right in the path of totality. And this eclipse feels even more special because the last total solar eclipse in Austin happened before there was an Austin, in the year 1397. On today’s show, we talk to bird biologist Peter English about the strange ways...
Published 03/08/24
On today’s show we talk with Philip Souza, a Ph.D. student in the lab of Simon Brandl at the Marine Science Institute, and a Stengl-Wyer fellow. His research is focused on the sounds that fish along the Texas Gulf Coast make to attract mates or defend territory. He works in the Mission-Aransas Estuary near Port Aransas, whose oyster reefs and other habitats support rich communities of fish, many of which have a big impact on the Texas economy — including spotted sea trout, catfish, red drum...
Published 09/08/23
On today’s show we talk with Alex Huth, assistant professor of neuroscience and computer science at The University of Texas at Austin, and Ph.D. student Jerry Tang about a new system that can read a person’s thoughts in real time and produce a stream of continuous text. The system they developed, called a semantic decoder, relies in part on the kind of AI model behind ChatGPT. It might one day help people who are mentally conscious yet unable to physically speak, such as those debilitated by...
Published 05/01/23
For graduate student Olivia Cooper, the successful launch of the James Webb Space Telescope, or JWST, comes at the perfect time to help launch her career studying galaxy evolution. Cooper works with University of Texas at Austin associate professor Caitlin Casey on the biggest project in JWST’s first year—COSMOS-Web—which is designed to take the deepest images of the universe to date and reveal some of the earliest galaxies to form after the Big Bang. We talk with Cooper about the...
Published 12/13/22
Over the past 15 years or so, tawny crazy ants from South America have been popping up across the southeastern U.S. like paratroopers dropping in from an invading army. Where they take hold, they’re like an ecological wrecking ball and they cause headaches for homeowners. Podcast host Marc Airhart joined biologist Edward LeBrun in the Texas Hill Country to test a new weapon in the battle against the destructive tawny crazy ant.
Published 07/13/22
Here in part 2 of our continuing remembrance of Steven Weinberg, we’re diving a little deeper into what we know because of him. Weinberg was one of the world’s greatest theoretical physicists, and his passing last year was deeply felt not only by us here at The University of Texas at Austin, but by a broad community of scientists and science-loving people. Weinberg summed up the goal of his life’s work as: “to know why things are the way they are.” To him, that meant distilling the rules of...
Published 03/09/22
Today, in the first of two parts of a special segment, we’re remembering the life and legacy of one of the greatest theoretical physicists of all time — The University of Texas at Austin’s Steven Weinberg, who died in July. We’re exploring who he was as a scientist, writer and mentor — and a deep thinker about our place in the universe. We’ll hear from colleagues who worked with him — fellow UT Austin physicists Katherine Freese, Willy Fischler and Can Kilic — and from his former student John...
Published 02/21/22
Did you know frogs are also in a pandemic? Today on the Point of Discovery podcast, five ways the frog pandemic is like COVID-19.
Published 01/13/22
Today we’re doing something a little different. We’re bringing you an excerpt from another great podcast produced here at the University of Texas at Austin, called TX512. It’s about all things UT Austin and Texas. In this excerpt, host Sam Torres asks guest Sara Robberson Lentz about the Texas Podcast Network, which is a group of more than a dozen podcasts produced across the university, including Point of Discovery. Sara is the managing editor for feature content in the University...
Published 08/16/21
Physical punishment, or spanking, is widely practiced in the U.S. and around the world, although it appears to be decreasing. Parents, caregivers and school administrators who use it say the goal is to prevent unwanted behaviors and teach children to make better choices. But does it actually work? And what long term effects does it have on the physical and mental health of people who are punished this way? In today’s special episode, we’re teaming up with Ike Evans, producer of the Into the...
Published 05/12/21
When we get sick, we change our social interactions—we keep away from others and we don’t share food. It turns out, humans aren’t the only species to do it. According to a new review in the journal Science, when highly social animals — such as ants, mice and bats — get sick, their social interactions change, too. For example, sick vampire bats groom each other less, move less and call out less, and this may help reduce the spread of disease. It’s not active social distancing, but rather more...
Published 03/03/21
Evolutionary biologists never have enough time. Some of the most mysterious behaviors in the animal kingdom—like parenting—evolved over thousands of years, if not longer. Human lifespans are just too short to sit and observe such complex behaviors evolve. But computer scientists are beginning to offer clues by using artificial intelligence to simulate the life and death of thousands of generations of animals in a matter of hours or days. It’s called computational evolution. One behavior...
Published 10/12/20
We asked you, dear listeners, to send us your most burning questions about COVID-19. And you didn’t disappoint. You asked: When will it be safe for my 12-week-old baby to meet her grandparents? Can you catch it twice? Is the virus mutating and will that make it harder to develop vaccines? In today’s episode, our three experts get to the bottom of these questions, and more. Meet our experts: Professor Lauren Ancel Meyers is an epidemiologist and leader of the UT COVID-19 Modeling Consortium....
Published 08/20/20
In these next few decades, will humans finally find life in space? We asked University of Texas at Austin astronomer Caroline Morley and her answer just might surprise you. Morley shares her vision for the future in this latest episode of our miniseries, The Next 50 Years. Check out more podcasts and essays in the Next 50 Years series: https://cns.utexas.edu/news/tags/the-next-50-years Scientists from across UT Austin are joining forces in the hunt for life on other planets. Astronomers,...
Published 06/07/20
Can we simulate life — in all its messy complexity and at the scale of each individual atom — in a computer? Even the most powerful supercomputers today can only simulate a tiny portion of a single living cell for a few nanoseconds. Carlos Baiz is a biochemist at the University of Texas at Austin who says it might someday be possible to simulate an entire living cell for hours or longer. But he says there are two big catches. Baiz shares his vision for the future in this latest episode of our...
Published 04/28/20
Daily life has changed for many of us due to the coronavirus pandemic. During this unusual time, when it’s harder to connect physically with important people in our lives, it can be helpful to step back and spend a little time thinking about the things that still bind us together, like the wonder of the natural world and the hope that scientists offer us as we take on societal challenges. We’ve put together a compilation from our previous episodes that we hope will help you find some solace...
Published 03/27/20
Artificial intelligence is becoming more and more a part of our daily lives. But will AI have mostly positive or negative impacts on society? Some potential unintended consequences include home service robots that accidentally break your fine china, or systems that increase the gap between the haves and the have-nots. Peter Stone co-leads the Good Systems initiative at the University of Texas at Austin, which is trying to hash out guiding principles for building AI systems that are more...
Published 03/10/20
Have you ever wondered why some people seem to be able to follow a specific diet or exercise plan and others fail? The answer might have to do with factors unique to each person, like their microbiomes and genetics. Geneticist Molly Bray is working toward a future where each person gets a diet and exercise plan optimized just for them. She shares her vision for how this would work in this latest episode of our miniseries, The Next 50 Years. Check out more podcasts and essays in this series:...
Published 02/13/20
We know absolutely nothing about roughly 80 percent of the different types of life on Earth. Biologist David Hillis aims to discover all those missing species—by some estimates 5 to 10 million—possibly in the next few decades. Sound impossible? He shares his vision for how this would work in this first episode of our new miniseries, The Next 50 Years. Check out more podcasts and essays in this series: https://cns.utexas.edu/news/tags/the-next-50-years Hillis, along with colleagues Derrick...
Published 01/08/20
If you've been listening to our podcast for a while, you probably have noticed that we haven't had a new episode for a few months. We’ve taken that time to step back and reflect on our show, both what has changed over the last few years (we’re now in our fifth year of production – yay!) and where we're going in the future. In this month’s episode, producer and host Marc Airhart chats with senior editor Christine Sinatra about the podcast. We also share some exciting news: we’re kicking off a...
Published 12/18/19
Why do so many first-year students struggle in college? Who is most likely to fail? And what can professors and staff do to help them get over the hump? “I didn't know what was going on. And I just felt out of place as a whole,” said Ivonne Martinez, a first-year student at UT Austin who was in danger of failing Freshman Calculus. “I was like, What am I doing? And that kind of made me panic.” In today’s show, math professor Uri Treisman and chemistry professor David Laude describe ways they...
Published 09/20/19
Virtually everyone contracts RSV (respiratory syncytial virus) as a child, but few people have even heard of it. It’s actually one of the leading causes of infectious disease deaths in infants. Now a team of researchers, including molecular biologist Jason McLellan, are using a radically new way to develop a potential vaccine against RSV. This method, called structure-based vaccine design, is already changing the way many vaccines are now being developed. To see a cool image of the...
Published 08/01/19
Kristen Grauman, professor of computer science at the University of Texas at Austin, and her team have taught an artificial intelligence agent how to do something that usually only humans can do—take a few quick glimpses around and infer its whole environment. That will be a critical skill for search and rescue robots that can enter a dangerous situation—like a burning building—and relay information back to firefighters or other personnel. To see an animation of how the new AI agent creates...
Published 06/17/19