What Lies Beneath The Outer Layers Of A Star?

Science Friday

You might think of a star as a mass of incandescent gas, a gigantic nuclear furnace where hydrogen is turned into helium at a temperature of millions of degrees. But researchers recently reported that they’d observed some of what lies beneath all that hydrogen and helium, at least inside one unusual supernova. The star, named supernova 2021yfj, had its outer layers stripped away, leaving behind a silicon- and sulfur-rich inner shell.

Astrophysicist Steve Schulze joins Host Flora Lichtman to describe what the team spotted in the heart of a dying star.

Guest: Dr. Steve Schulze is a research associate at Northwestern University’s Center for Interdisciplinary Exploration and Research in Astrophysics.

Transcripts for each episode are available within 1-3 days at sciencefriday.com.

Subscribe to this podcast. Follow our show on Instagram, TikTok, Facebook, and Bluesky @scifri and sign up for our newsletters. Got a science question that’s keeping you up at night? Call us: 877-472-4374


Hosted by Simplecast, an AdsWizz company. See pcm.adswizz.com for information about our collection and use of personal data for advertising.

More description

You might think of a star as a mass of incandescent gas, a gigantic nuclear furnace where hydrogen is turned into helium at a temperature of millions of degrees. But researchers recently reported that they’d observed some of what lies beneath all that hydrogen and helium, at least inside one unusual supernova. The star, named supernova 2021yfj, had its outer layers stripped away, leaving behind a silicon- and sulfur-rich inner shell.

Astrophysicist Steve Schulze joins Host Flora Lichtman to describe what the team spotted in the heart of a dying star.

Guest: Dr. Steve Schulze is a research associate at Northwestern University’s Center for Interdisciplinary Exploration and Research in Astrophysics.

Transcripts for each episode are available within 1-3 days at sciencefriday.com.

Subscribe to this podcast. Follow our show on Instagram, TikTok, Facebook, and Bluesky @scifri and sign up for our newsletters. Got a science question that’s keeping you up at night? Call us: 877-472-4374


Hosted by Simplecast, an AdsWizz company. See pcm.adswizz.com for information about our collection and use of personal data for advertising.

2025-08-27 12 min
Listen elsewhere

Available Results

Generated results are saved to your library for reuse and search.

No generated results are available for this episode yet.

Transcript

No transcript is available for this episode yet.
Sign in to generate a transcript for review.
Sign in

Chapters

No chapters available.