Big Brains

Meet The ‘Planet Hunter’ Searching For Alien Life, with Jacob Bean

Big Brains

Show Notes

The search for life beyond Earth is no longer science fiction—it takes a lot of data, powerful telescopes and a bit of cosmic detective work. And at the center of this search is University of Chicago astrophysicist Jacob Bean. Bean was part of the team that made history by detecting carbon dioxide in the atmosphere of a distant planet using the James Webb Space Telescope—a major step forward in our ability to study exoplanets.

Bean uses cutting-edge tools and discoveries that are reshaping how we think about planet habitability, biosignatures and our place in the universe. From potentially habitable exoplanets like K2-18b to false hopes like Gliese 486b, Bean shares why the atmospheres of these faraway worlds might hold the key to one of humanity’s oldest questions: Are we alone in the universe?

More from Big Brains

Oct 9, 2026

Deep beneath the ice of Antarctica and high above its frozen expanse, University of Chicago astrophysicist Abby Vieregg is hunting for neutrinos—some of the most elusive particles in the universe. Often called "ghost particles," these tiny messengers travel across billions of light-years, passing right through ordinary matter unnoticed. She is among the many scientists hunting for high-energy neutrinos—an area of research that was awarded the 2026 Nobel Prize in Physics.

Sep 17, 2026

What if your thoughts could allow you to feel the texture of an object, type a message or move a robotic arm? How does the brain translate thought into physical movement, and can technology bridge the gap for paralyzed patients, whose pathways are broken?

Aug 20, 2026

For decades, traditional cancer treatments like chemotherapy and radiation have targeted tumors directly—often with severe side effects and mixed results. But what if the key to treating cancer was already inside our bodies?

Aug 6, 2026

What makes a good life? For decades, psychologists have debated whether true fulfillment comes from happiness—a life of comfort and joy—or meaning—a life of purpose and impact. But what if there's a third way?

Jul 23, 2026

What if the secret to restoring your focus, improving your mental health, and even reducing crime rates wasn’t found in an app or a pill, but in a tree? In this episode, we speak with University of Chicago psychologist Marc Berman, whose research on “soft fascination” and nature’s cognitive effects is reshaping how we think about everything from urban planning to depression treatment. From groundbreaking hospital studies to surprising results with plastic plants, Berman’s work uncovers the deep—and often invisible—power that natural environments hold over our minds and bodies. Whether you're a city planner, a parent, or just someone feeling mentally fatigued, this conversation may just change the way you think about a walk in the park.

See all episodes →