The Largest Black Hole in the Universe – Size Comparison



The Black Hole story continues with our Black Hole merch, spanning the whole range from somewhat bonkers to more serious. Check it out here:

Sources & further reading:

The largest things in the universe are black holes. In contrast to things like planets or stars they have no physical size limit, and can literally grow endlessly. Although in reality specific things need to happen to create different kinds of black holes, from really tiny ones to the largest single things in the universe. So how do black holes grow and how large is the largest of them all?

OUR CHANNELS
▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀
German Channel:
Spanish Channel:

HOW CAN YOU SUPPORT US?
▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀
This is how we make our living and it would be a pleasure if you support us!

Get Merch designed with ❤
Join the Patreon Bird Army 🐧

DISCUSSIONS & SOCIAL MEDIA
▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀
Reddit:
Instagram:
Twitter:
Facebook:
Discord:
Newsletter:

OUR VOICE
▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀
The Kurzgesagt voice is from
Steve Taylor:

OUR MUSIC ♬♪
▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀
700+ minutes of Kurzgesagt Soundtracks by Epic Mountain:

Spotify:
Soundcloud:
Bandcamp:
Youtube:
Facebook:

The Soundtrack of this video:

Soundcloud:
Bandcamp:

If you want to help us caption this video, please send subtitles to subtitle@kurzgesagt.org
You can find info on what subtitle files work on YouTube here:

Thank you!

🐦🐧🐤 PATREON BIRD ARMY 🐤🐧🐦
▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀
Many Thanks to our wonderful Patreons (from who support us every month and made this video possible:
BBumbrazz, Sir Harry Farr, Abigail von Kelsch, Szabolcs Dombi, Conner Wilson, Enoch, Moody Bastard, Diego Marcheselli, Paxton LaRiviere, Richard Hagen, Robin Harn, Izzy Crow, Kristy Evangelista, Michael Baker, Tuna The Fish, @charlievankamp, Calvin Black, Justin Fisher, Jan Hübler, Anshul Choudhry, garshtoshteles, Mark Moses, Mau Magaña, seasar2000, Toda, newline, Matt, schubadu, Slumperd, Cracker, Josh Carpenter, Benedikt S., Jeti, Kevin Williams, Enrique Mejia, Juan Carlos Coto Sanchez, Paulmega, Jasmeet Singh, Austin Daily, Andrew Bourgeois, Andrew Dawson, Fin Brewin, Graesha Lizardo, Hagen, Diogo Moreno, Madeline McKinnon, akshay niranjan, The Entity, sontino catalano, Aubrey Temple, Terone, Oleksandr Bolgarov, Jacob Bell, Kyle Harmse, Henry Angulo, Luka Dulčić, mors741, Billyboots75, Joe Bedell, Merasmus 2.0, jimmy davies, PBYuki-Onna, Billy Z Duke

source

25 Comments

  1. For anyone talking about Phoenix A*, it isn't verified. The 100B number is a non-gravitational indirect estimate based on adiabatic gas-cooling models. It has an massive margin of error. TON 618 is still the highest directly measured, verified black hole (note that current TON 618 measurements place it at like 40.7 billion solar masses, so despite being indirect we have better data on it than on giants like Phoenix A*)

  2. I’m gonna make things more terrifying. The light we are seeing from Ton 618 is from around 10 billion years ago given the fact that Ton 618 was able to move with the expansion of the universe… this means that we are seeing what Ton 618 looked like 10 billion years ago… not what it looks like today.

    To make matters even worse, Ton 618 has been dethroned. The largest known black hole now is Phoenix A, which is located in the center of the Phoenix cluster. It’s located around 5.8 billion light years away, and pretty decently outsizes TON-618

  3. And now the largest black hole is Phoenix A, which is so unfathomably big its got a mass of 100 BILLION SOLAR MASSES! That is so insane when I first heard about it I thought my brain was gonna break.

  4. Interesting property of ultra massive black holes. The Schwartzchild radius of an object grows faster than its radius if you keep adding matter of the same density. This means that the larger a black hole, the less “dense” it is, which is the mass divided by the volume of the event horizon.

    Primordial black holes are the mass of a mountain compressed into the size of a proton, but ultramassive black holes have the density of water.

Leave a Reply

Your email address will not be published. Required fields are marked *

You might like

© 2026 Cantinho do Vídeo - WordPress Video Theme by WPEnjoy