VehiclesFashionRecipesBlogsHuntTravelsSportFunHandmadeITEducation
Mini-Games
x

x
zakruti.com » Knowledge, science, education » What If
The True Scale of the Largest Objects in the Universe

The True Scale of the Largest Objects in the Universe

FBTwitterReddit

video description

Rating: 4.0; Vote: 1
Try Gamma Imagine: Today, we're going bigger and badder to reveal the absolute largest objects we can find in the entire observable Universe. And let me clarify something. We're talking physical size, not mass. We often talk about planets or stars as large and massive. When I say large, I mean the diameter of an object, top to bottom. And when I say massive, I mean the mass, which is the amount of matter stuffed into an object. You can have an incredible mass but be physically tiny, like a dense black hole or a neutron star. Those are not going to make it on our list, because today, we're talking size. And things are going to get huge. 00: 00 True Scale of the Largest Objects in the Universe 01: 34 Jupiter 02: 43 ROXs 42Bb 07: 12 The Largest Stars 09: 42 Sirius A 10: 42 Pollux 11: 22 Arcturus 12: 50 Betelgeuse 14: 29 Stephenson 2-18 16: 21 Ultra-massive Black Hole (TON 618) 17: 48 Phoenix A 19: 13 The Milky Way 20: 47 Andromeda 20: 57 IC 1101 21: 17 Quipu 22: 38 Hercules-Corona Borealis Great Wall Ever wondered what would actually happen Explore our biggest What If scenarios and go deeper with the What If community The What If Book: Articles: JOIN THE COMMUNITY Discord: WhatsApp: Instagram: Twitter/X: Facebook: SUPPORT WHAT IF Merch: Join this channel for exclusive perks: Patreon: MORE FROM UNDERKNOWN Aperture Philosophy & Psychology: How to Survive Survival Science: Brand partnerships & collaborations: contactunderknown. com Produced by Underknown: #universe #space #science #whatif #cosmos #comparison #documentary
Date: 2026-04-12

Comments and reviews: 20


Have they confirmed the mass of Phoenix A yet I keep trying to find the research where they are confirming it, but everything im reading says its mass is still based off theoretical models. It seems like scientists havent been able to confirm its mass yet, as they have been measuring the x-rays being emitted from matter inside of it. It seems like they believe it _can_ be 100 billion solar masses, but its not anywhere near as certain as scientists are about Ton 618's 66 billion which was based off spectroscopic analysis. Scientists seemed to be debating whether Phoenix A was actually near the 100 billion solar masses, or if it was closer to 20 billion. Either way its huge, I just wouldnt be putting it above ton 618 until its confirmed.
reply

13: 30
What are your qualifications
Betelgeuse: Ah, well. I attended the Winter Triangle. I'm a part of the Orion constellation. I travel quite extensively. I lived through the Black Plague and had a pretty good time during that I've dimmed and brightened again 167 TIMES, AND IT KEEPS GETTIN' FUNNIER EVERY. SINGLE. TIME I SEE IT! NOT TO MENTION THE FACT THAT YOU'RE TALKIN’ TO A DEAD GUY! NOW WHAT DO YOU THINK! You think I'm qualified
-Uh, what I meant is, can you be scary
Betelgeuse: Oh! I didn't know what you were askin' me. Can I be scary What do ya think of this
goes supernova
You like it

reply

We have elliptical orbits.
Evidence for Jupiter acting as a debris shield from asteroids and such is not a full realized theory and subject to real scrutiny. It can be argued that it can trap rocks but it's not as pat as those factoids that assert it as.
Also contextualizing any of the other planet relative to their importance in benefiting life on earth is a bit anthropocentric and silly.

reply

Based on our understanding huh Would you trust someone that talk about the outside when that person only saw the outside from a small hole in the wall For me that's how it feel with our understanding of the universe. I am not saying everything said is false, but it is hard to know how much of our understanding is right, and not just what we think is right.
reply

This video made me think of a question I see often in the internet, what if you could double or half something or if you could add or remove a zero from something in your life what would you chose.
So I propose a video idea, what if you doubled the speed of light, or halved the space between everything, or added a zero to the speed of light.

reply

Space is big. You just won't believe how vastly, hugely, mind-bogglingly big it is. I mean, you may think it's a long way down the road to the chemist's, but that's just peanuts to space.
Douglas Adams, The Hitchhiker’s Guide to the Galaxy

reply

The way you scaled everything down to a 12cm Earth made these unimaginable sizes so much easier to understand. My brain literally cannot comprehend the scale of the Hercules-Corona Borealis Great Wall at 22: 42
reply

When talking about big objects in space, I don't know why people move into galaxies That's not really an object. a galaxy is a cluster of objects. Black holes are the single largest objects known.
reply

I would like to point out that yes our sun is small compared to the giants its actuslly bigger than 90 percent of other stars. I kinda wish he put a red dwarf up here so we could see a good reference
reply

Cool video however we must say that talking about planets and stars so far away should be taken with a big risk tolerance. Heck half of the things in this video might be proven false in a few decades
reply

10: 45 I don't know why this made me so sad. 6 billion years is a long way away, but it's sad to think that all of this will be gone one day and no one will ever know any of us existed.
reply

bro there is not a single data that shows that Pheonix A exist, please do some research before u do a info video like this, PHOENIX A is HYPOTETICAL NOT ACTUALLY TRUE
reply

When you see the true scale of these objects, it honestly makes Earth feel almost invisible do you think humans will ever actually explore beyond our galaxy
reply

On the subject of Betelgeuse, it has been shown it has a companion star that affects its brightness. Siwarha (meaning her bracelet in Arabic) or Betelbuddy.
reply

So we hear sounds because of atmosphere - particles, and atmosphere is rare in universe. So that means so does sound. Sound is rare in the universe. Wow!
reply

For scale of the emptiness of space.
If the earth was 12cm in diameter the orbit of the moon would be around 3. 6m away (roughly 30 diameters of earth)

reply

and here i am paying taxes and being forced to work a 9-5 for up to 50 years. Thats half the life of someone who gets lucky with health and good genetics
reply

You really needed to keep them next to each other in the size comparison. Scrolling the camera passed each really doesn't help while panning out.
reply

then imagine that the number of digits of graham's number does not fit in this vast universe, even when 1 digit is the size of the planck length
reply

interesting.
would have been interesting when we got to the galaxies and beyond to reduce the Earth comparison to a pea or lentil.

reply
Add a review, comment






Other channel videos