The Cosmic Scale

How large is the universe? Where does it begin and end? And how does it expand? These are some of the biggest questions of astronomy. And while humanity is so small that we may never be able to fully understand the true scale of the universe, advancements in technology are helping us to look ever-deeper into the wilds of our existence- towards the edge of our observable universe, known as the Cosmic Horizon. Today, we will analyse the universe, its laws, and its awe-inspiring scale.

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MUSIC:
Special thanks to Lombus, who allowed me to use his song Doppler Shores in the title screen:

Other songs are from the YouTube Audio Library:
- Landing | Godmode
- Tundras | Amulets
- Dolphin-esque | Godmode
- Space Chatter | Doug Maxwell
- Traversing | Godmode
- At The Precipice of a Dying Light | Dan Bodan

FOOTAGE:
The space scenes in this video were captured using SpaceEngine Pro, a virtual universe simulator:

VIDEO CLIPS:

IMAGES:

SOURCES OF INFORMATION:

TIMESTAMPS:
0:00 Introduction
2:23 Defining the Universe
6:51 The Big Bang
9:12 The Observable Universe
10:53 The Hubble Telescope
11:46 The Hubble Deep Field
16:49 Cosmic Expansion
19:40 Redshift
21:48 The Cosmic Horizon and the Unobservable Universe
25:36 Accelerating Expansion
28:29 Dark Energy
30:14 The End of the Universe

[Tom-tzhi]

Huge respect for the cameraman who traveled around the universe just to record this.

[alexanderslater]

Using "bus size" to describe the Hubble telescope was definitely the most comprehensible unit of measurement in the whole video

[jharris]

I enjoy thinking about how big the universe is because it makes my problems feel insignificant. There's so much comfort in that.

[patriley]

I feel privileged to live at a time when these wonders are revealed.

[elmowilcox]

It’s always crazy to remember that every time you hear the unimaginable scale of the “observable” universe that there’s still an awful lot of unobservable universe out there.

[minhwangfreerunner]

33 min of pure cosmic knowledge. 1 ad
this guy needs some recognition

[bittech]

You’re really good at getting just the right mix of casual depth and more advanced concepts into your videos. Gives the viewer room to research more into a topic, but also doesn’t lock them away behind a bit too much detail, or not enough to be interesting.

[punkypinko]

I will always remember the first time I saw the Hubble Deep Field image. It's one of those moments in life that changes your view forever.

[JaYoeNation]

I think it’s important to watch content like this regularly. It’s grounding to see the bigger picture.

[carbon_no]

No matter how many times I view pictures showing “Hubble Deep-Field or Hubble Ultra Deep-Field” my mind is always melted by how impressive it truly is that those light-points in the photographs are entire galaxies!!

[xGaLoSx]

I dont understand how this shit isn't all everyone thinks about and obsesses over everyday of their life.

[randomname]

No matter how many videos I watch or rewatch that discuss the sheer scale of the universe, I'll never get bored. Really passionate about it, even not a professional or anything, I will forever admire these topics until I can't.

[siroswaldfortitude]

This is one of the finest if not the best presentation I have ever seen on this subject matter. For someone like me, who is no expert, but knows slightly more than some, it is the perfect blend of explainable fact and theory and i was gripped from start to finish. I subscribed within minutes of it starting...thank you all

[stefb.]

You've synthesized the most comprehensive guide to the cosmic universe I've ever seen. This was beautifully written and a pleasure to experience

[jlc]

I came to YouTube stoned to watch funny videos and am leaving with an existential meltdown.

[Azdingue]

This has been one of the best videos about astronomy I've ever seen, it includes everything I've seen in every other video and the relation between it in a single video and is put together so elegantly and makes understanding it or finding the relation between different things I've known very easy and admirable . Thank you ❤

[tomlyle]

I’ve been watching cosmology videos for the entire period of the pandemic (so far), and this is definitely one of the best there is. Respect.

[apmm]

No matter how many times we watch these type of videos ! We still cannot comprehend, the sheer distances that are involved. The universe truly is mind blowing.

[wellzysmagic]

It's insane how underrated this channel is. One of the greatest channels on the platform.

[stephenmani]

This channel is the best I have seen so far amongst all the ones that explain the concepts of the universe and space/time. The reason I like it the most is because the explanation is simple and clear, and the focus is on helping everybody understand the mysteries of the universe. What I particularly like about this channel is that it is focused on the facts supported by research, and there is no attempt to intersperse the explanation with needless, unnecessary music and over-dramatizing. In some channels, the loud music is sometimes so distracting that it actually takes away from the focus on the facts of the science. And I say this despite being an English Literature graduate, with no background in Science. If I could understand and appreciate it, I am sure anybody can. Thank you for this excellent channel and narration!