DiscoverBedtime AstronomyThe i-process: The Missing Link in How Stars Create Heavy Elements
The i-process: The Missing Link in How Stars Create Heavy Elements

The i-process: The Missing Link in How Stars Create Heavy Elements

Update: 2025-11-27
Share

Description

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.
Comments 
00:00
00:00
x

0.5x

0.8x

1.0x

1.25x

1.5x

2.0x

3.0x

Sleep Timer

Off

End of Episode

5 Minutes

10 Minutes

15 Minutes

30 Minutes

45 Minutes

60 Minutes

120 Minutes

The i-process: The Missing Link in How Stars Create Heavy Elements

The i-process: The Missing Link in How Stars Create Heavy Elements

Synthetic Universe