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Black Hole Star – The Star That Shouldn't Exist

Kurzgesagt – In a Nutshell · 15.8M views · 2022-12-15 · 9:57

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Overview

Kurzgesagt explains black hole stars, a hypothesized kind of giant star with a black hole at its core that could be a route to early supermassive black holes.

On Hacker News

HN uses it as a quick, accessible introduction to the black hole star concept in threads about early-universe black holes.

Recommended by 2 HN people across 2 months · HN mentions 2022–2025

Topics

Cosmology & astrophysics
Search by tags
kurzgesagtblack holesastrophysicsearly universequasi stars

What people said

db48x · 2025-07 · Recommendation

Just in case you somehow don’t know what a Black Hole Star is, check out Kurzgesagt’s video about them < [VIDEO] >

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rishav_sharan · 2023-11 · Recommendation

Quasi stars are one of the theories for the existense of the super massive black holes. Here is a nice video [VIDEO] by Kurzgesagt on this topic.

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banana_giraffe · 2022-12 · Reference

If you want an CLI version of a similar idea, you can use yt-dlp and some simple jq to pull down the captions for a file: curl `\ yt-dlp -j [VIDEO] | \ jq -r '.automatic_captions.en[] | select(.ext=="json3") | .url'`

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Sources

Video by Kurzgesagt – In a Nutshell, played through YouTube.

Data and selection notes

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HN Library: HackerTube export (2026-10-31) and open-index/hacker-news. Upstream summaries and classifications may contain AI errors.

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