The Source
Monday-Thursday from noon-1 p.m. on KSTX
The Source is a daily, one-hour call-in talk program that gives listeners in San Antonio the opportunity to call and connect with our in-studio guests and city-wide audience.
The Source seeks to give life, context and breadth to the events and issues affecting San Antonio by bringing newsmakers and experts to the public, and highlighting the people being affected by the news of the day.
The show is hosted by veteran journalist David Martin Davies.
Tune in to The Source for insightful discussion and analysis on topics that matter to residents of the Alamo City.
Contribute to the conversation:
- Call or text during the live show at 833-877-8255.
- Leave a voicemail at 210 615-8982 anytime. Submissions may be played on-air.
- Email comments to thesource@tpr.org.
Support for The Source comes from Texas Mutual Workers' Compensation Insurance.
Support for The Source comes from UT Health San Antonio.
Latest Episodes
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Over 2.5 million grandparents in the U.S. are primary caregivers for their grandchildren. This is a growing trend driven by parental addiction, incarceration, mental health issues, neglect, and financial instability. This "grandfamily" phenomenon often leaves seniors managing financial, legal, and health challenges with little to no support. -
UT Health San Antonio has launched a new Center for Excellence in Diabetes to advance treatment and work toward a cure for a disease that impacts about one in six people in San Antonio. The center will bring together clinicians, researchers and trainees to better understand the wide range of symptoms and complications of diabetes that can vary from patient to patient. -
Solar energy advocates are excited about perovskite-based solar technology, which could produce cheaper, more efficient panels that use less energy to manufacture than traditional silicon solar cells. But hurdles still stand in the way, including durability, large-scale production and environmental concerns. -
As NASA’s Artimis ll is orbiting around the moon and will soon head back to Earth, there are lots of questions about what is next for humanity and space exploration. A permanent moon base is planned and then explorations of Mars. But how realistic are these ambitious plans? -
As San Antonio enters a new industrial era, four frontier industries are driving opportunity and innovation: cybersecurity, bioscience, advanced manufacturing, and aerospace. How will San Antonio leverage its $44 billion innovation ecosystem, retain local talent and discoveries – to foster breakthrough bioscience research, technologies, and companies? -
As the United States’ space program is heading back to the moon — we hear from Eileen Collins — a retired NASA astronaut. Collins was the first woman to pilot the Space Shuttle and the first to command a Space Shuttle mission. A new documentary “Spacewoman” tells the story of this NASA pioneer. She tells us about her time in space and what the future might hold for space exploration. -
FRONTLINE's “Strike on Iran: The Nuclear Question,” is an updated report that is produced with The Washington Post, Evident Media and Bellingcat. The documentary investigates Iran’s nuclear program after the June 2025 strikes. Iran's ability to build a nuclear weapon was the primary justification for the ongoing U.S. Israeli war with Iran. -
One month into the U.S. Israeli war against Iran, and there remain questions about why President Trump decided to launch the attack and what the objectives are. Under the Constitution only Congress has the authority to declare war — but that didn’t happen. San Antonio Congressman Joaquin Castro (D) joins us to answer your questions about the war with Iran. -
The history of the Mayan civilization seemed to be lost forever when Spanish explorers first saw the ruins of the ancient cities in Mexico and Central America. Today with recent decipherment of their writings the story of the Maya can now be told from their perspective. -
San Antonio Mayor Gina Ortiz Jones is using overseas trade missions to make the case that the city can compete for the industries shaping the next economy. Her latest trip, a March delegation visit to Taiwan, was framed by City Hall as an effort to strengthen bilateral ties, attract investment, and position San Antonio as a landing spot for Taiwanese firms looking to expand in the United States.
