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The REAL Largest Star

October 25, 2026 · 30 min

Show notes

What is the largest star, and where can it be found? For a few years now, it has been known as Stephenson 2-18, often claimed to boast a diameter more than 2,100 times our sun’s. But is this estimate really reliable? And if not, then what other giant stars may be lurking out there? These are the questions we will be aiming to answer as we wind back the clock in search of the real “largest star”.


MUSIC:

- Holographic Rain - CO.AG Music (https://www.youtube.com/watch?v=37aEn7yuChQ)

- Strange Visions (Giuseppe Rizzo)

- Endless Mist (Enzo Orefice)

- Dystopia - Instrumental (Efliz)

- Nights of Darkness 01 - CO.AG Music (https://www.youtube.com/watch?v=FwC9HZv7Zw0)

- Static Balance (Enzo Orefice)

- Agnus Dei (Michele Nobler)

- Light the Way (Enzo Orefice)


Artists:

- Enzo Orefice: https://www.music-bay.net/artists/enzo-orefice/

- CO.AG’s music channel: https://www.youtube.com/@co.agmusic


CHAPTERS:

00:00: What is the Largest Star?

01:48: It’s Not Stephenson 2-18

05:20: Modern-day Contenders

11:30: Primordial Stars

15:47: Quasi-Stars

18:11: MoM BH*-1: Webb’s New Black Hole Star

22:28: A Source of Galactic Engines?

26:20: The REAL “Largest Star”


All episodes of SEA: Space Exploration & Astronomy

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