The scale of the universe is so mindbendingly vast, it's good to just sit back, put on a KZfaq video, and just chill out while you listen to how insignificant everyone and everything you know is in the grand scheme of everything

Don't be sad, or sorry, Don. The fact that in a universe this bewilderingly vast, we get to even be aware of it - and have our minds blown by the realization - is a precious gift. Everything you learn, be it how the rasengan works or the scope of the universe in which a single human once dreamt up that fictional idea, exploration, discovery, and surprise are guarateed to be infinite. To the curious mind, everyday is christmass morning, with as many new gifts to unpack as we can manage. Enjoy it, mate.

Born too late to discover anything new on earth, born too early to discover anything new beyond it...

The observable universe is everything we can see through voyager 1, Hubble telescope etc, it’s estimated that the universe is probably bigger than we will ever conceive and the universe is expanding faster than the speed of light meaning we will never see past the observable universe

It’s so hard for our brains to comprehend how big the universe really is. The crazy part is that this is just an estimated size, the universe is probably even bigger, and this increases the probability for another earth like planet with life on it.

I know it's not really your traditional content but, I'd personally love to see more videos like this. Also, to CLARIFY, the part they mentioned about only being able to detect a certain distance, they were talking about radiowaves, not what we can see. (Recommendation: look into explanations for higher dimensions. It gives you a good feel for how much vaster even a single room could be).

to me Carl Sagan's words about every single person living on that tiny dot suspended in a sunbeam shows us how insignificant most of our squabbles are and how we would be so much better off working together as people.

"Oracle, are we alone in the universe?" "Yes." "So there's no other life out there?" "There is. They're alone too." - Written by James Miller from A Small Fiction ; there's also a nice comic of it from The Oatmeal I feel it really captures the sad part you were talking about.

What really bums me out is that even if intelligent life does exist somewhere out there, chances are really high that it exists so far away from us that we will never even detect, much less meet or talk to them.

I’d love to see you react to more videos like this about space, science and history.

Should do more similar stuff like this. Love watching just random reactions

Good Sir, please watch "history of the entire world, i guess" next. It is the perfect addition to this space video. You will 100% appreciate seeing it. Thank you and can't wait for you to react to it!

This reminds me of a memorable series of books I read as a teenager called The Ultimate Hitchhiker's Guide To The Galaxy where they would show someone everything in existence in an instant as a form of execution due to our brains not being able to comprehend it all and literally shutting off.

Bro, Imagine Mario's face when he realized he's gonna have to travel across 2 trillon galaxies.

cool to see you reacting to stuff like this

The flipside of the coin to your sadness is that you are actually alive in a time where not only we can observe our universe, but actually have that information shared online to educate us all. Such a privilege. Be well ✌❤

next reaction, history of the entire world i guess?

Even with these tools to help us visualize the scale of the universe, even while looking right at it, our brains still can't truly comprehend the scale.

Who else is certain that aliens are definitely real after watching this?

Hey, something I know a little about! (I'm just a guy who watches a lot of space videos, not a scientist or anything lol so correct me if Im wrong folks) Our radio broadcast do not go beyond the yellow dot that was pointed out. Were indeed going to collide with the Andromeda galaxy in the future. When galaxies collide, nothing actually 'collides' because stars and planets are still too far apart to do that . But many stars and plants and gas will be flung away from the center. Supermassive blackholes are the gravitational center of most galaxies but they don't have enough gravitational pull to keep galaxies 'together', that's the job of the dark matter that surrounds galaxies (theoretically). Telescopes like the recently launched JWST can see infrared galaxies up to a few hundred million years after the big bang (which is currently a mystery since we didn't know galaxies formed that early!). The part about how far we can see was specifically about the naked eye when we look up in the sky. That's why we know what the observable universe looks like. It's whats 'observable' with our various telescopes. Light travels faster than anything, yeah. It's known as the max speed of causality because if you were to travel at light speed, time would stand still for everything except you. Going faster (which isn't possible) would break the laws of physics and you would end up probabaly traveling backward in time lol. Is there life out there? Almost certainly. Will we ever get to know what it's like? Almost certainly not. It's bittersweet to think about :p

Definitely love your enthusiasm! I considered looking in to all of your questions because it is honestly incredible

YESSS! I love science and was hoping you'd get around to this video because alot of reactors have done it and you didn't disappoint. If you like this id recommend 2 similar videos 1 is "VFX artist reveals the scale of atoms" and 2 is "VFX artist reveals the scale of the universe" they are both really mind-blowing and informative like this one.

Really enjoyed the reaction! Wanted to help answer a couple things, not sure if others have or not already. Even with how many stars exist inside our galaxy, and even more in the Andromeda galaxy, there is a very low chance that any stars would collide with one another when our galaxies merge because of the absolutely immense distance that is between stars. Some orbits of planets and stars could be effected by others which could certainly cause some major problems over long periods of time. It would make for one insane spectacle however if you were around to see it. The way we know that these incredibly distant things like stars or galaxies exist is because we can see them with telescopes. Light waves that shoot through the universe become "stretched out" as they travel through space for significant amounts of time because of the expansion of space itself and those waves become way to large for our eyes to be able to see them. So to be able to see things very distant we use telescopes to capture the enormous waves and focus the waves down to a length that our eyes can see.

It's cool that you check out this video and posted it. This video is always a trip to revisit.

I love everything that had to do with space, if you could please do more reactions to such videos 🙏🏻

Whenever I need to center myself I put on some good headphones, lay outside, and stare up into the sky listening to something relaxing. Doing this you are looking into the eyes of countless other beings throughout time also looking up. We are all connected over time and space, transmitting our own thoughts into the ether.

You should keep watching more videos like this, I enjoyed your real reaction and thoughts about the future no matter how depressing it can be because that's reality for us. Thank you!

More of this reactions! Very enjoyable. Its actually one of my most favourite video.

damn man i support how you made this video even though you wasnt sure if people gonna watch it, thats how you enjoy life!

Hi, dont know if anyone answered this yet the reason we can see observe a large part of the universe but our own broadcasts havent reached nearly as far is because the light from the things we have been observing has existed and been travelling towards us for vastly longer than humanity has been able to interact with the universe in a larger sense.

I one hundred percent agree with your conclusion, it makes me sad to not be able to see how far and what humans in the future will experience. however that's all the more reason to live in the present and try to enjoy what we have. Loved the video and seeing your reactions to how incredible what we already have found out is. stay happy!

I enjoyed the video. Would love to see more space related reactions

I’m fw these videos bro. More of these kinds would be cool for sure.

Great reaction bro, stay curious! This stuff really is super amazing to learn about

You should react to “History of the entire world I guess” It’s a great video I’m sure you would enjoy 👍

I wouldn't be sad, Don. One way I like to think about it, is no one in the future will know everything. It's easy to feel envious of the cool things some people will learn as humanity expands further out into the milky way, but there's a lot we get to experience they'll always be curious about as well. Eventually there may be people zipping around with knowledge of their local intergalactic communities, but I doubt it will be much different for most people from how it is now. maybe there'll be some alien friends but there's not much else to learn out there other than what other entities might be up to in their particular corner of the local galactic cluster. One day humanity may be spread across the stars. Every terraformed planet with its own history of struggle and overcoming alien environments. But each one will share a common history. They'll all share a common source. Us. We get to exist at the start of it all. Life is quite convenient already compared to the past thanks to new technology and the journey to Mars will start in our lifetime. I think it will only accelerate as industry opens up to the solar system. We get to see how it all started before we spread out into an unknowable number of stories. I feel blessed to get to live in this era.

You know, i normally dont comment under videos, and I've been watching your content even before you started reacting to naruto, but the reaction to this video tops it all for me. I thoroughly enjoyed this video and your reaction don. Don't ever apologise for posting and reacting to content that you don't normally react to. This was amazing 🔥💙 keep it up!

i would never expect that you would react to this. keep it up!!!!!!!!!!!!

This perspective helps people understand universal level characters in fiction. Imagine a single being capable of destroying or erasing everything you saw in that video... quickly and in real time. It goes to show just how powerful these type of characters are really meant to be... and we're not even getting into the multiversal level ones (especially in comics). That's a whole other level of power.

Loving the content bro, you should try and watch the movie interstellar if you haven't watched it already. It can get mindblowing at times.

With how big the universe is estimated to be, no one can ever convince Me aliens don't exist

Don needs to watch some of those videos comparing the size of Earth to different planets and stars. Or maybe something like the Boötes Void when he had some concepts clear

did not expect this. nice vid!

When I was younger I thought about the vastness of space and I came up to a problem. What's on the outside of space? A wall. What's on the other side of the wall? More space. The idea of infinity blew my mind.

Loved your reaction, two videos I recommend are VFX Artist Reveals the True Scale of the Universe, and VFX Artist Reveals the True Scale of Atoms both by Corridor Crew. They'll really show you the size of things

He quoted Carl Sagan in this video, I think you should watch his show "Cosmos", maybe even react to it. It's a really beautiful series about the Universe.

I love this space video and watched it many times and still amazes me glad you saw it too

10:04 The narrator said "Furthest Extent Of Humanity's RADIO BROADCAST SIGNALS" he didn't say that that little point in the Milky way was the furthest extent of what we can currently see. The thing is, with the help of powerful telescopes and research, we can see the very edge of the universe (that's right, the very EDGE). Ever seen that oval picture of the universe with the blue and the green colors? Yeah that's the one, it's called the CMBR or the Cosmic Microwave Background Radiation. It's the very first light that was ever released into the universe! The light you're seeing in that picture was emmited when the universe as we know it was just a few hundred thousand years old! Meaning that this light began it's journey to us before the Earth had even formed, heck before the Milky Way galaxy had even formed! It then traveled through space for over 13 and a half billion years, losing energy as it did so due to the expansion of the universe which slowly stretched it into low energy Microwave light by the time that it finally landed on our telescopes. Now the place from which all of this cosmic radiation was released is formally called the "Surface Of Last Scattering" and not only is it the farthest thing in space that we have ever seen, it's the farthest thing that we CAN EVER SEE! It's the edge of the visible universe! Take a look again at the picture(if u can, maybe look it up) Now you might ask 'What am I looking at?' You're looking at the moment that the hot early universe transitioned from an opaque plasma to a transparent gas. You're looking at the light that was trapped within that primordial plasma and set free at that moment. You're looking at the AFTERGLOW OF THE BIG BANG! in other words, you're looking at a baby picture of the universe. (dis took so long to type so plz like)

Never seen this channel before. Good stuff. The universe is a mind-blowing place.

I like this type of veideos! more Science and Space video please, I reccomend Black Holes next

16:20 Makes me think of a scene in the movie Star Trek: First Contact Lily Sloane: "I envy you, the world you're going to." John Luke Picard: "I envy you, taking these first steps into a new frontier."

For your question about Mars' distance, it varies because of the shape our orbits around the sun are. The orbits aren't exact circles, they're more oblate. Earth is pretty unique in that our orbit is much more consistent, leaving us constantly in the habitable distance from the sun. Mars' orbit, to contrast, is both more oblate than ours (meaning it takes longer to get to the middle of a martian year), and also slightly off-centre, meaning it will sometimes be vastly closer to us than the last time it passed us by.

most of the colorful pictures of galaxies and nebulas are mixtures of visible light, xray, and thermal imaging put together. so the actual image you see is usually much less exotic.

As someone who loves everything related to space and universe since Im 5 years old, I've had plenty of time to think about it in a lot of different ways and every time I feel a little bad or uneasy in my life or when someone dies etc I just think about me on earth, then going back far far away and it's always a great feeling and will always make me happy and glad to even exist. The fact that something exist can be crazy when you look at it, and the fact that Im something that exist, but also able to see other things who exist, trying to understand them is so amazing that I couldnt care less for our present world's problems, my mind is always in space and nothing matters. Also, you shouldnt feel sad to be born early and not being able to see what they'll find after us, because they will also feel the same way and wish they can see what people after them will find. We are lucky to have such informations and to have found out all this compared to our ancestors who also wished to see it. Dont be sad about your time, just live with it, because it doesnt matter when you live, you always want to see more.

I've had a nerdy hobby for a year or so, wathing "the size of the universe" videos. Every time I watch one, this truth hits harder and deeper. But, anyway, it's feels good to know. Thumbs up for you👍

I've been watching for a while and I enjoy your videos overall but I was SO jazzed to watch this one that I had to comment. I think it's cool that watching Rick & Morty got you curious about space. I remember starting to get curious about the universe after watching the anime Uchuu Kyoudai (Space Brothers). Recently I re-signed up for ISS alerts (it lets you know when the International Space Station orbiting the Earth can be seen overhead and it's kind of cool watching it travel across the sky knowing people are in it doing research things). So I've been in kind of a space-happy mood lately and was honestly excited when you came to a similar sadness about what we won't get to see because it'll be past our time--because it's so interesting learning about all of what's out there! It's so EXPANSIVE! And the idea that we'll never see some things because they're travelling away from us too quickly... it's kind of cool that there'll always be mystery to existence. Anyway, I loved this. The NASA site states astronomers currently believe that supermassive black holes are at the center of every galaxy so you were right about that (just confirming). 👍🏻

this video was so unexpected but i really like this kind of videos

I was 8 years old watching man in black 1 and at the last scene it zooms out from our planet to a point that the whole universe was a tiny air molecule on another planet that had creatures walking on it.. that gave me food for though for decades..

You were correct about the center of the Milkyway being a black hole. It's called Sagittarius A and is blocked from view by the cosmic dust of the spiraling arms around us. However, I don't know if every galaxy has a black hole, but I'd guess that it is usually the case. If anyone else knows, I'd like to find out.

2:33, unlike the simplified models that are sometimes used, planets don't really orbit the sun in perfect circles. So depending upon where Mars and Earth are their rotations around the sun, the distances can be smaller or larger.

I am a pretty big physics nerd, and although I been watching your avatar, rick and morty, and other reactions if your willing to go outside the box and watch space videos like this (there are a shit ton) then you are a goat sir. Up to you though of course, should always watch something that you will probably enjoy. Also to answer your question he said with only the naked eye, we not only have telescopes but can use gamma, infrared and ultraviolet instruments to detect the presence of these other galaxies, the reason we can detect them is because their light had enough time in the universes history to travel to all the way to earth.

We'll probably never leave our local group of stars. Space is too big.

Really enjoyed this! Would love to see your reaction to more space stuff. You should react to Corridor Digital's "VFX Artist Uses CGI to Reveal the True Scale of A BILLION!" or "VFX Artist Reveals the TRUE Scale of Data!". I would say it's about as mind-blowing as this.

really enjoyed this reaction 😊

You're reaction was absolute gold 🥇 I would love to see you react to the kardashev scale video from kurzgezagt

Idk about other people, but dragging out videos is something you should do even for reactions, it was nice hearing your thoughts afterwards

VIRGOO GANNGGG!!! No wonder i was loving ur channel❤

Damn Don, your closing thoughts are deep. My biggest regret in life is that I wasn't born at the end of time, so I can't see how it all ends.

7:54 Man just casually threw that in there😂

He said the furthest we could see with the naked eye was 99% within that yellow box. The Hubble telescope is literally a super powered light catcher, which is why we have been able to see and track the observable universe. The James Webb however can see further, and more clearly.

Honestly the scale of the universe is just crazy to think about. Also, second!

Ooooooooo next you should watch an explanation of the 10 dimensions in our universe. If you’re watching scientific videos that have to do with the stuff in Rick and Morty, that’s a must. Because there are 10 dimensions of space total, not just the 3 that we know.

Fun fact: When you look at the stars, you see the stars as they looked in the past. This is because light takes a very long time to travel from the distant stars to Earth, so when you look at stars you are basically looking into the past.

The funny thing is that we are technically seeing the universe in the past, so we don’t know if these astronomical bodies still exist that are millions and billions of light years away.

I'm an amateur astrophotographer, as far as I know when you look up at the stars you don't see the present, you see the past, that's why I don't think other civilizations will ever be found.

8:15, the late Carl Sagan said "astronomy is a humbling profession". Once you see how large the universe is you begin to see just how insignificant we are to it. But I also believe our insignificance to the larger universe underscores how important we should be to one another.

What scares me is that if we managed to be able to travel faster than the speed of light, with the size of the universe, we could in fact be lost and can't find our way back home.

Need more of these bro 💯🔥

the vergo super cluster are groups of galexies. The part we are in "local group" contains over 50, so yeah.

i liked your thoughts at the end u r smart. :)

Just a note about the "Pale Blue Dot" photo: what look like beams of light in the _Voyager_ photo are actually the glare of the sun on the camera optics. Really, if it weren't for that glare, the rest of the image other than Earth should perhaps be much darker.

Nice Video!

Knowledge like this....changes a person, I used to be quite arrogant and full of myself, I can admit that....this stuff though....it tears through ego entirely...a life changing experience man....

The human brain just cannot fathom the size on the universe, these videos are the best way to put it into some form of scale.

this is honestly so humbling

No, you're spot-on about Andromeda, and Saggitarius A*, the supermassive black hole in the Milky Way. Yes, the galaxies will collide in about four million years. It'll actually shred the Milky Way, as Andromeda is about ten times bigger. Oh, and yes, light in a vacuum is the fastest thing there is, but it's even weirder than that. Turns out that the speed of light is really the speed of cause and effect.

I agree. It’s so sad that we won’t know MORE! It’s also sad and scary that the universe is EXPANDING so stars and galaxies are moving away from us, so in a few million years from earth you won’t see anything, no stars, nothing, except for our own solar system.

When I die, I wanna become a star in space and just look at earth and see what they are doing and what they are discovering. I believe!!

We can see all of this stuff because the light from the far away objects hits our detectors. The light takes time to get to the detector, so the further away it is the more back in time we see objects. Because the universe is expanding on the large scale, the light from very far away objects "stretches" and has a lower wavelength than what it was emitted at. So a star from a galaxy far away enough emitted a photon in the visible part of the spectrum, but we detect it in the infrared. This is why the James Webb telescope is engineered to detect in the infrared. The earliest galaxies are so far away that the space between us and those galaxies has stretched the light into the infrared wavelengths since it was emitted.

It's a big thing to also remember that Most of space pictures are in black and white and colorized by us so it's hard to say that's exactly how things look out there

You can't travel faster than light. But if you travel fast enough, you slow down your clock, so in theory you can go from one side of the universe to the other side in like 10-15y of ship time. But while you were traveling the universe would still pass the time at a normal rate. So if you travel 100 million light years away in 10 years, in 10 years you will see 100 million light years pass at superspeed. So by the time you get there, both at earth and at your destination 100 million light years would have passed.

Telescopes are used for seeing the observable universe but space telescopes like the Hubble telescope have extended what is observable and more are planned for the future. Astronomy is amazing even though it makes us feel incredibly small.

Sextillion is such a huge number that our punny human minds can't even conceptualize it lol. This is so amazing. Ty for this video i enjoyed it

Consider that we didn't know this until rather recently. Just a couple of hundred years ago we had no idea there were so many stars. You were at least born in a time where you could learn this.

You seen to confuse what we can see with the naked eye, and what we can see with telescopes. What we can see with our naked eye is limited by a lot of things. Our atmosphere blocks some stuff, and so does the light from the sun and moon and our own cities. We can only see really bright stars, for example our closest neighbor star, proxima centauri, we can't even see with the naked eye because it's too small and dimm. Also, light when it travels long distances decays, until what's left is mainly infrared, which we can't see but telescopes can. Telescopes on the other hand are out of the atmosphere and/or not influenced by the light pollution, can see a bigger spectrum of lights and colors, measure the background Radiation and all kinds of other stuff. Also, they are often bigger than our measly eyes and can see light that our eyes just can't. They're usually pointed at one area of space for prolonged amounts of time, which too helps. I'm sure you've experienced something similar when you've watched the stars: the longer you look, the more you see. Similar thing with telescopes, just instead for minutes it's for days!

Was planning on studying astronomy but then got actually terrified and depressed at how big the universe is and how we'll never know so much in this lifetime, so eventually I went on to study smt else

Some clarifying information: 1 AU (astronomical unit) is the average distance between the earth and sun or about 150,000,000km or 8.3 light minutes 1Ly (Light year) is equivalent to 9,461,000,000,000km (9.461 trillion kilometres) Also if we invented light speed travel today, it’s unlikely we could escape our local cluster

To your question about if nebulae really look like that pic. Yes, and no. Those pics are multiple pics though different cameras that can pic up various wavelengths of light coming from them. If you could see every spectrum of light from visible, to uv, to microwave, to possibly gama rays. Then that's how space would look

It’s so crazy to think that there could be a planet just starting off like ours somewhere far away, with dinosaurs and all the animals we’ve seen

"in my lifetime I won't get to see everything else they discover" FINALLY someone said it. I've never wanted to be immortal but I've always wanted to know how the universe goes on beyond our lifetimes