EPISODE · Nov 27, 2025 · 35 MIN
The i-process: The Missing Link in How Stars Create Heavy Elements
from Bedtime Astronomy · host Synthetic Universe
We thought we knew how the universe forged elements heavier than iron—until the data stopped adding up. In this episode, we sit down with experimental physicist Mathis Wiedeking from Berkeley Lab to discuss the i-process (intermediate neutron capture), a newly identified third mechanism of stellar nucleosynthesis.Discover why the traditional "slow" and "rapid" processes couldn't explain recent astronomical anomalies and how the i-process fills the gap. Wiedeking breaks down the complex nuclear physics experiments required to model these unstable reactions and explains why understanding the hearts of stars is crucial for advancing medical isotopes and nuclear technology here on Earth.Thank you for listening to Bedtime Astronomy — your guide to the cosmos. New episodes on space exploration, NASA missions & the latest astronomy breakthroughs.
What this episode covers
We thought we knew how the universe forged elements heavier than iron—until the data stopped adding up. In this episode, we sit down with experimental physicist Mathis Wiedeking from Berkeley Lab to discuss the i-process (intermediate neutron capture), a newly identified third mechanism of stellar nucleosynthesis.Discover why the traditional "slow" and "rapid" processes couldn't explain recent astronomical anomalies and how the i-process fills the gap. Wiedeking breaks down the complex nuclear physics experiments required to model these unstable reactions and explains why understanding the hearts of stars is crucial for advancing medical isotopes and nuclear technology here on Earth.Thank you for listening to Bedtime Astronomy — your guide to the cosmos. New episodes on space exploration, NASA missions & the latest astronomy breakthroughs.
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The i-process: The Missing Link in How Stars Create Heavy Elements
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