Astronomy Cast Ep. 787: Evolved Stars (They're not dead yet!)

Astronomy Cast Ep. 787: Evolved Stars (They're not dead yet!)

Published: March 23, 2026

Duration: 31:09

https://www.youtube.com/watch?v=jY1_q9a0UFc

Hosted by: Fraser Cain ( @frasercain ) and Dr. Pamela L. Gay ( @CosmoQuest )

Streamed live on Mar 16, 2026.

Main sequence stars spend most of their time being… normal. Fusing hydrogen into helium in their cores. Producing radiation. But as their stockpiles of hydrogen run out they switch to other fuels, starting to climb the ladder of the periodic table of elements. And this is when things get weird. As we get more and more observations of the cosmos, our understanding gets more detailed. In this episode we...