The Mind-Blowing Scale of Voids and Supervoids

Supervoids are the massive, empty spaces between galaxy clusters and galaxy filaments. But just because they are empty, doesn't mean they can't be fascinating! They have taught us a great deal about galaxy structures and the early universe, and today we'll be venturing into a few of the biggest!

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Music, Footage Credits & Sources of Information:

MUSIC:
- Long Walks [Emily A Sprague] - YouTube Audio Library
- Fairy Meeting [Emily A Sprague] - YouTube Audio Library
- A Slow Dream [Emily A Sprague] - YouTube Audio Library
- Devoid [ELPHNT] - YouTube Audio Library
- Rain Cloud Music [Emily A Sprague] - YouTube Audio Library

FOOTAGE:

- Expanding Galaxies:

SOURCES OF INFORMATION:

TIMESTAMPS:
0:00 Emptiness in Space
2:04 Defining a Void
3:52 Mapping Voids Around Us
4:38 How Voids Form
7:05 The Bootes Void
9:16 Voids and Dark Energy
10:33 The Cold Spot
12:10 The KBC Void

[elbozo]

matter: *exists*
humans: “whoa”

matter: *doesn’t exist*
humans: “whoa”

[fortythreenorth]

In summary, there is lots of space in space.

[ykszmht]

Big respect to the guy going out to space and counting all the atoms 🙏

[meganb]

"If you want to go emptier you need to go higher"
My mans, the only time I don't feel empty is when I'm high

[thomaslarkin]

When you realize traveling at light speed isn't nearly fast enough to actually get anywhere.

[orpheus]

Could you imagine winning a Nobel prize for discovering nothing.

[neeltheother]

I could imagine a sci-fi story set in the 60s where we are in the Bootes Void and other galaxies were first discovered.

[cactynemann]

The cold spot can easily be explained as an indicator of the presence of impossibly large ghosts the size of many hundreds of galaxies

[theslyredfox]

"Just because they're empty doesn't mean they can't be interesting".

*Teary eyed looking in the mirror with a sad smile*

[Nitephall]

It's scary to think most of the universe is just dark emptiness.

[Folse]

Imagine traveling in a spaceship in the heart of one of these voids. You could presumably look out of a window and see absolutely _nothing…_ mind you, there will be no depth perception or anything. Pure blackness. Just nothing, in the most profound sense of the word.

[moze_-]

There's just something weirdly comforting about how impossibly, incomprehensibly large our universe is. I get to be a collection of sentiment particles for a bit, then back to darkness.

[widget]

It's awesome to learn about this stuff, knowing it was barely a generation ago that we discovered our physical place in the universe gets me excited for what we might know when I'm older

[captainslut.]

You realize this guy is literally talking about nothing.

[BarryDylan]

Damn, maybe thats why theres no aliens around... we're in the cosmic Wyoming

[paradice]

"Our universe could be an atom for a much, much larger one."

[Shedding]

For those of you saying that light speed is too slow for interstellar travel.. just remember that there is Lorentz time dilation. At the speed of light, going from point A to point B will feel instantaneous for you. Regardless of where you go. From an outside observer, it will take however long it takes for light to traverse those distances. It has always boggled my mind that for light which has traveled billions of miles to reach my eyes from a twinkling star. It literally is born and dies on that same instant. Light doesn't perceive creation because it just pops into existence and it disappears from it's point of view. IF you were traveling at you literally could go anywhere in an instant, but once you got there it would be way farther in the future. Distances narrow, but time stretches. This is why it is called space-time. They are intricately connected.
Edit: Fixed grammar and made the paragraph easier to understand.

[grandpa]

Sometimes I feel like my brain has 10 atoms per cubic metre

[pawstravel]

I've watched this a year ago and my friend SEA is making quality videos and doesn't upload that often. Re-watching was definitely worth it. It's just the way SEA does the narration and the tempo of his voice. Thanks for making these mind-blowing and mind opening videos sir ☺️👍

[wabbit]

Well, this is a channel that definitely deserves an instant subscription. Absolutely fascinating.