Are We Actually In A Nebula?
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- Опубліковано 13 чер 2024
- What really is a nebula, and are we in fact in one? What is the Local Interstellar Cloud? Astrum Answers!
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Image Credits:
NASA/ESA/ESO
Music Credits:
Andrew Odd - Leaving
Rhiannon McColgan - Space Lullaby / annon-sound
Imagine some 1000 light-years away a species could see our nebula and think: "Wow, that looks kinda cool". It's really wholesome to think about that, that someone / something thinks about us as a kind of beautiful thing in the sky somewhere.
Cool thought!
"Eww, that's disgusting" -Aliens, probably
We need neighbors to swap pics with
"The term nebula is a blanket term for many things"
So the definition is...
nebulous?
In German, fog is called nebel. Could be related to that...
Not sure if it comes from Latin or Germanic though.
Nebulatronical
He also mixes the use of the noun and adjective versions making this abit confusing if you know the difference.
yall missed the joke
Its Latin for cloud.
They used to think galaxies were these clouds too until fairly recently in 1925.
So they are 'Messier objects' which was Messier's definition of cloudy or clustery stuff that wasn't stars in 18th century.
“The Local Bubble” sounds kind of cozy
Agreed
It is, I live there and can confirm
As long as it doesn't burst like the Dotcom bubble did.
See: Elite Dangerous
Try the local fluff
I feel at ease , comforted by the knowledge that I'm inhabiting a planet that's in a nebula , thank you 🙋😊
Like driving through a puddle, being in the middle of it doesn’t make you part of the puddle. We’re not even traveling in the same direction, so we’re not part of it and I IMHO don’t find any value or joy in it, nor does it offend me either.
@@MLV1000
Not all of them. Some of them eat quite well!
Lolboii Human diseases aren’t that important
It's kinda like a little interstellar security blanket... 🤭
That’s encouraging indeed
Wow, what a wonderful video. And all these images of Nebulas, what a beautiful thing. Thanks Alex. 👍🇧🇷
Someone said “astrum come to brazil” and they did
🇧🇷☄
@skem Unfortunately, things are not very safe here. 😔
@skem I never asked what you want. NOW GET IN THE SPACESHIP
A G H H I D O N T W A N A G O T O *B R A Z I L*
Interesting, just when I thought I had heard about most subjects to do with outer space, this one shows me something I have not seen mentioned of before. 🤔👍
I stumbled across this information myself and was pretty surprised! This isn't even new data really. Just hasn't hit the mainstream yet.
@@astrumspace sadly, i dont think it ever will.
@@notlogical4016 Yeah I agree
I knew about the Ionized particles outside the Sun's Magnetosphere, just never put 2 + 2 together to = a nebula. But that's cause I follow the Voyager Probes stuff and one (I believe it's actually Voyager 2) had sent data back basically saying it met a wall of plasma (Ionized Gas) on the extreme edges of the Magnetosphere of the Sun. It wasn't on UA-cam though. But a documentary on Netflix or Amazon Prime. Can't recall which.)
But I loved how he told us it's from being in an Emission Nebula. Never knew that.
For real though. This is a question I’ve honestly haven’t considered
Glorious!
Praise Jesus!
Amen
What??? Jesus not only keeps his promise regarding a 'Second Coming', but he also knows how to post on UA-cam using a phone or computer. I take it you've spent the last 2,000 years catching up with modern technology, then? Impressive...but just a quick 'miracle' would've saved you an awful lot of trouble.
Cock 10 out of 10
Jesus Christ it's so good to see you! I hope everything is going well.
I love the drawings herschel did - I'd love me a copy of some of those.
archive.org/details/resultsofastrono00hers/mode/2up look towards the end of the book :)
@@astrumspace thank you!!!
@@astrumspace
Awesome thanks
"The Local Bubble." Elite Dangerous intensifies.
FRIENDSHIP DRIVE CHARGING
@@charmelonchannel Maybe the real Raxxla is the friends we made along the way.
o7
Bye everyone, I’m off to Colonia
Been out in the black too long
Didn’t realize nebula had so many variables...thank you for sharing the details. Fascinating!
Two thoughts:
1. I wish our cities could contain light pollution like in your thumbnail!
2. Its scary thinking about the kind of stories our ancestors would have believed in if their night sky were like the one in your thumbnail!
Thanks for all the visuals though, Alex!
When I walk my dog at night I can only see two stars in the sky 😔😭
It is thought that some distant hominin ancestors would have seen bright jets from the Sagittarius A* black hole dominating the night sky.
Sauron.
Light polution my dude.... Back in 90s when not everyone have electricity here i could see a carpet of stars back then... Sigh
Codyfm2 This is the saddest post I have ever started my day with. I wish you more stars right where you live.
Hey Astrum Team, highly fascinating content, I really enjoy it. But is it possible to add some sources either in the video or the text overview in the future to do so more in depths reading?
Rip, unfortunate you never got a reply :(
Until now
@@plugOutletflowey Not from the Astrum team unfortunately. Still a good channel
don't they give references and stuff? thought i'd seen something..
maybe you have to pay (patreon?) to get reply??
Dont get me wrong, I love going away from any light pollution and gazing at the milky way but oh how I wish there were a galaxy or vibrant nebula nearby that fills the night sky. If this were the case I fully believe our history would be vastly different. So much wonder and speculation from ancient history came from tiny points of light and stray comets had our ancestors in a panic.
You wouldn't really see that with the naked eye tho. Look at the milky way. On clear nights you can see that there's a stripe in the sky where slightly more stars are. The incredible views we know only come to visibility when using a camera with long exposure.
@@straight-outta-jutta - They're not wishing for what's in our sky, they're wishing for a sight so bright that it could be seen all over the sky. Theoretically it should be possible to have amazing nightscapes on a planet somewhere. While it's not a galaxy or nebula, something like the view of Saturn or Jupiter from one of its closest moons would be incredible (and visualized well during a segment of scenes in the movie Pitch Black along with various science videos about planetary moons).
@@tirsden I know. And I said you wouldn't see any nebulae or galaxies more than what you can see of the milky way right now in perfect conditions. These things are just way too big. If we would be in orbit around Saturn, yes the views would be amazing but nebulae and galaxies are too big and too faint to ever look as cool with the naked eye as the pictures we know and love.
@@straight-outta-jutta there are nebulae bright enough to be visible with the naked eye, if they where closer.
The whole point of the comment of op was to say that he wishes some of those bright nebulae actually where close enough to make them out.
In the southern hemisphere you can see the Milky way ( with no light pollution) huge & bright right across the sky.. Looks like it's not real 😁
Sometimes when I break wind, I feel like I have created my own nebula full of primordial gas.
That's HILARIOUS 😂😂
Nice....Reminds me of Me. Williams' science class...in the 7th grade.. 😂😆🙋😏
I'll say this anytime i "break wind"
It sounds very scientific and intelligent, it'll make up for me being a jerk and creating a nebulous cloud around other people. Thank you for this incredible scientific breakthrough! 🚶♂️💨💩
Me too after I eat some Rosarita refried beans and eat a pickled egg after that..LO!What a beautifull thing!!!
Just don't light a match, or you may experience a solar flare that goes all the way to Uranus.
The Local Interstellar Cloud is also called the "Local Fluff".
The more you know
I like that.
F L O O F
do you know dark nebula are the dust left by a sun super nova. we.are near a solar event. dont believe scientists.there paid..there will be a solar event,ice age,before the end of this century. around 2050. this is why theres a big hurry to try & get some people to mars..not,that that will save any one. &,this is why there letting it out about ufo,s recently..not much point keeping secrets if there no one here.. eh..
Fine. I'm not calling myself a local fluffer, though.
I like that
I appreciate looking at the beauty of a nebula more than to be inside it
Wow! That was one of the most interesting videos I've ever seen on this or any other related youtube channel. Thank you!
So amazing, no wonder I’ve loved Astronomy for 50 years.
This is a superb and beautifully presented discussion. One that I'll be proud to share with my students. Well done!
I wonder if somewhere else in this galaxy someone is looking at our sector thinking "what a beautiful nebula"
Nope. Were alone.
@@krotchlickmeugh627 Chances are we're not
@Delawanna its sad. But its also thr most probable.
Even if we werent. We will never know.
Light years are just that a year at the speed of light.
To travel a light year would take us 37,200 years at 5 miles a second. Which is our current record with discovery.
The odds of another species or us but further in our evolution (were not a species with history of non destruction nor sustainability)
Figuring out some fantastical power source and propulsion system is fiction.
Let alone for any life to exist in an incredibly hostile universe.
The dwelling on other life out there is a waste of time frankly.
Its nice to believe but so was santa when we were 6.
When people say space is infinite it bewilders me that they also think that they know that as fact. We dont even understand whats at the center of the earth.
We need to focus on important things like living a fantastic life because its very very brief.
Less dwelling on what we cannot answer and what we can rationally assume.
More making life easier for eachother in thus cramped place and expanding our minds rather than chasing imposabilities.
But i digress.
In conclusion, I do know one thing for a fact i dont know anything for certain.
Agnosticism is the best way to look at answers we cant possibly solve.
If more people believed in the morals of religion principles and less in a spaghetti monster. The human species would be able to critically think things through and share more common sense.
Hm... the definition of "nebula" seems a bit... nebulous.
You beat me to it lol.
Goddamn it you took my joke
Gayest joke ever
SuB SONiC if anyone asks for the door. I’ll see it through.
srolled down and found it😑🙂
Those animations into the nebulas were amazing! You have some very interesting stuff, I am glad youtube recommended me your channel
The level of detail! Ive always been into nebulae. It’s very interesting new information this brings to light for me. Thank you! I’m never disappointed in your work since i first subscribed when your page first launched.
Actually there is an award-winning book that details how these drawings were made by Herschel and others in the 19th century. It is called _Observing by Hand: Sketching the Nebulae in the Nineteenth Century_ (University of Chicago Press, 2013) by O. W. Nasim.
Nice video as usual. Fyi I love the top left description of the pictures, really a nice touch!
This was such a fantastic video. Thank you for constantly putting out such interesting, high quality content. The images and narration are so soothing and calming too.
Our nebula looks like a person with a fancy hat raising a giant arm and balled up hand in anger. Sounds about right.
Thank you Alex, this beautiful work makes my day. As always. Be safe, healthy, & happy wherever you are 😊
I could listen to your voice all the time. It's like a blissful meditation.
And here I thought I knew everything about the universe...
Thanks as always. It's very clear how much work you put into your videos!
Videos like these which make you wonder, ponder and analyse your knowledge are just fantabulous.
Great work 👍
Thank you! This was fascinating! 🙏😊
I wonder if this is the reason Aliens didn't come yet, officially. The nebula hides us in some way. Maybe it's a good thing.
If you played elite dangerous then exploring nebulae are kinda at the top 3 of your list to do in space lol
Aliens are demonic beings. Don't be fooled! And so many accounts of almost alien abductions, if you hadn't looked into it, of saying the name Jesus, they leave. If anyone hasn't been saved now is the accepted time. Jesus died on the cross for our sins. He died was buried and on third day rose from the dead 1 Corinthians 15:1-4. He shed His blood for the remission of all your sins. Once you accept Christ as savior you will never lose your salvation. Once you believe you are sealed with the holy spirit of promise. Look at Ephesians 1:13-14. I hope this helps someone who is confused on how to be saved. ABC's of salvation. Admit your a sinner. Believe in what Christ did for you. He died, was buried, and on third day rose from the dead. 1 Corinthians 15:1-4. He shed his blood to pay your sin debt. Call upon the name of the Lord. Believe and trust.
@@lauraleaf1582 Wow
@@lauraleaf1582 You need help 😢
@@lauraleaf1582 What you talking about. Jesus is the alien, lol. The depictions of him flying up under a light beam ain't him going to heaven, it's just him going back to his mothership.
I loved that image of stars leaving a wake of ionized particles. i've never seen that before. Thanks!
The joy in your voice talking about this reached me. Thankyou.
What's silly is that the sun seems to be the fastest interstellar ship we humans will ever have
without convoluting physics first.
I think the milky way is the fastest ship
@@therealist3495 Sorry, you lost me at "IN EXCESS of 99% light speed".
Also, i said: "without convoluting physics first".
@@therealist3495 In excess of 99% of light speed? Maybe for a probe with the mass equivalent to that of a mosquito, and I very much doubt we could do even that with todays technology, in any economically feasible way.
I remember reading that you could accelerate a gram-sized probe to speeds in eccess of 25% of the speed o flight, with lasers, and that woud require a very large array of lasers in space. That too would be very cool, making sending flybys of tiny probes of the nearest stars feasible within a reasonable time frame. Of couse, they would be flybys, because there's no way to break at the other end.
To accelearate anything that could be called a space ship, with lasers, and to achieve any appreciable fraction of light speed would require far more energy than I thik we can reasonably produce.
@@therealist3495 Like i said. You lost me already. And you keep reinforcing it.
Looks like it's working out so far, but i bid you the best of luck for the rest of your life, man. If there's anything i can leave you with - i suggest you see a psychiatrist, just in case.
@@noiJadisCailleach just because you don't understand what hes saying you believe he needs to see a psychiatrist? Not a pleasant attitude dude. Especially when the man is talking complete sense.
This is the most beautiful video i’ve ever seen in my life :O *THATS REALLY BEAUTIFUL!!*
I don't know why, but I felt incredibly calm and serine while watching/learning from this video. Thanks!
The music credits and link are at the bottom of the description.
Astrum channel is great! I'm on a mission to watch all of your videos at least one time.
Just caught up to this video. Just past the 4-minute mark, I saw the Horsehead Nebula. I remember seeing photos of this in the 2nd grade, and it fascinates me to this day.
great titles like this have me thinking for ten minutes before i watch the video...
sort of test myself to see if my thinking matches the videos. (im usually wrong) lol
So what conclusion did you come to before going into the video? :)
@@astrumspace i said this to my partner "i think they wouldnt know they were in a Nebula, ;-) but they might have limited vision in to the universe if they are in such a busy area"
my second point sort of negated my first point what was probably right after hearing you mention it ....this is why im not a scientist. cheers Astrum.
It's comforting to know that we live in a nebula, and another being is looking out and wondering what lives there.
This video is so calming and informative at the same time.
Beautiful pics and visualization.
Very nicely explained. Something new learnt today.
Thanks.
Sharing it with my kids.
Awesome! OK, set calendar reminder for 20,000 years from now... Leaving local interstellar nebula...
Imagine if you lived to see that day now. 🤣🤣🤣
To be honest, sometimes I wonder if we've only come to exist as a species, if not our whole planetary ecosystem, because Sol has been traveling through a quiet part of our galaxy for quite a while now. As far as I know, our stellar neighbors are pretty nice compared to what else is out there, but there are so many things out there just cruising about of their own accord that could mess things up so incredibly badly if they got too close.
id bring that date down to about 2050. for our own solar flare..planet killer..at worst..this is whats causing global warming,not pollution..its a solar regular event.nothing you can do..
@@phantomwalker8251 ... you can break out some hot dogs and marshmallows! 🌭🍡
If you want to know something about outer space and/or the universe that's not mainstream,
there's Astrum.
I just love this fact.
Should be his Slogan. 👍👍 I give that idea 2 thumbs up.
Fascinating, informative, nebulous video. Thank you all involved in creating it.
I had never seen the images you showed up at 6:58. They are trully amazing and powerful. Thanks for sharing!!
Two days ago I literally wondered this same exact thing. Now I got a video about it. 👍🏻
The bow shocks of stars are truly mesmerizing, I didn't know about that! It's logical in a way, but it's so damn impressive that we have actual pictures of it!
This was great. You cleared up a lot of things I had questions about.
Cool animations. I really enjoy how you added this to your videos 🙂👍
Astronomy videos like these remind me our universe can be so weird.
And will only get weirder, why people still see something like the Bible as truth, is astounding and scary, disappointing, but we are slowly getting better!
Thanks astrum for making my interest in space.
Wonderfully explained Alex thanks again for sharing
These enhanced, moving graphics are astoundingly beautiful and convey so much information about nebulae.
I like when you explain with 3D picture / moving animation 🤩🤩🤩👍🏻👍🏻👍🏻 so i can imagine what it's look like up there 😊😊😊
I think I wanna be an aerospace engineer now just from watching ur cool videos. Keep up the good work!👍🏻🇺🇸
@@mymo_in_Bb
Neither did your comment. People are allowed to have pride. 👍🇳🇿
@Ragnar Þór Guðmundsson stfu. I’m proud of my country, what are u gonna do about it? Call the wambulance? That isn’t gonna do anything for u, so quit whining and nitpicking my comment
What a beautiful presentation! Stunning
Very informative and clearly explained!!!simply impressed.
"Inside" a nebula, no one can see how "majestic" or "beautiful" it is. Kinda looking at the "behind the scenes".
HOWEVER
Being a *neighbor* to a nebula, with enough distance ... Now THAT would be awesome.
Seeing massive stars look like tiny specs of light within those massive clouds is both beautiful and existenstially dreadfull
i don't get the latter at all.
@@GraveUypo We are tiny and insignificant.
1:50 that picture of "the pillars of creation" was so moving , its has the perfect name
Great video and graphics and really informative. Well done.
You ever notice on (any star trek tv series) Star Trek; when a ship springs a leak inside of a purple nebula, purple gas starts pouring into the ship. That and the fact that everybody files their ships in a manner where when all ships meet, they're all oriented in the proper direction (top of ship is up). I love Star Trek so I can see through the little nit-picky bits.
Yeh, Star Trek does many things right, but not nebulae.
I feel some serenity is knowing that as badly as we have treated our earth, it will recover after we are dust.
Recover in what way?
@@Krosis_ Time will heal everything. Unless of course we actually blow the planet up.
Stop being dramatic
I liked this video! It was understandable and clearly presented with excellent visuals!
As always, spectacularly informative, nice to know we share the planet with smart guys the likes of Alex, it makes up for all the rest of us !
We are in a nebula, but it's invisible without specialized instruments
@The King He did, so it must be true.
What an amazing universe we live in!
These channel help me alot to sleep peacfully everyday i keep running astrum videos and ted ,pbs ions and all this scince about this kind of staff 5 to 15 minute will be perfect
Thanks for this lovely video and the beautifully presented information
now i really want to somehow want to swap the orion and turantula nebula's just to see what it would look like, but i will just have to deal with the mesmerizing pictures of them on my computer.
It'd be interesting to go 100 light years out and look back where we came from.
Or like 100 billion to see where we really came from lol
@@cheapmovies25 That's outside the observable part of our Universe. Our galaxy would disappear after 94 billion.
I know inwas rounding up lol
@@bazpearce9993 Milky way looks diffrent 13 billion years ago so we would think its not milky way
@@maryann2628 Enter the genius? Methinks not. Replies to a two year old comment, but adds nothing at all.
You explained the information simply. Thank you.
Awesome video!!
I only learned we were in a Nebula a few months ago, Thanks for talking about it in detail for me.
Excellent video. I'm one of those types that gets bothered every time I see a movie with spaceships hiding in Nebula clouds. I want to scream "NO! The particle density of your average nebula would make the clouds practically invisible!".
Khaaaaaaaaaan!
There's the *hypothetical* idea that over stellar distances they might obscure sensors, but over stellar distances you're going to be harder to detect than an extrasolar asteroid, so it's kind of moot lol. If you're far enough away that the nebula would "obscure" you in our traditional conception of the idea, then... Uh... I don't think you need to worry about being hidden.
Now you could probably hide in comet dust or similar matter, I'd think? But asteroids themselves are also so crazy far apart that you'd never have any chance to do so unless something nuts happened in that system.
I guess to be fair, we don't exactly have much intel on the asteroids of other stars, so maybe there are some stars out there with quite dense fields of small asteroids or dust clouds from effectively crushed space rocks, but I feel like there's probably a scientific rebuttal to that idea that I'm just not aware of lol.
@@Starfloofle Perhaps a proto-planetary disk might be dense and rocky enough to hide a space ship. But I wouldn't want to try hiding in it.
@@fuzzblightyear145 Great movie by two of our best over-actors. loved them.
"When the sky is torn apart, so it was (like) a red rose, like ointment." - Ar-Rahman (55:37)
Assalamu'alaykum brother
hanif AR what
@@blazingtrs6348 Peace be upon you
Im not religious but i can appreciate a beautiful verse.
nothing to do with religion. religion if a fabrication by man.. that torn apart,was 12,000 yrs ago. a solar flare,nearly destroyed all life on earth. which,will happen again,in about 30 yrs.. so,that bible you hold ,tells you nothing..just gibberish to control you..you heard of sodom & gomorrah. ?.. fire & brimstone.?. not really,they were nuked.. by our creators..not god..
I love your videos. You're becoming my favorite UA-camr!
Nicely done. Thank you Astrum.
So when astronomer say “particles” do they mean anything with mass? Atoms? Or just particulate?
I think he's been talking about ions, which have mass. And also the non-ionized particles seem to be atoms, because he said they contain heat.
In the interstellar medium, usually just atoms of hydrogen and helium. Everything else is of a insignificant quantity. Therefore:
Number of particles per cm3 = Number of H atoms per cm3 + Number of He atoms per cm3
Astronomers use 'particles' the same way physicists use it.
Something have no mass is irrelevant when designating something as a particle (as long as you can contribute certain physical properties to it i.e. spin, charge, 0 mass is still a property). A good example is the photon, which behaves as both a particle and a waveform, but is massless (as far as we have been able to measure its mass)
@@Fluxje But in this case I believe Alex is talking about particles with mass, i.e. atoms or ions, (or even molecules, though there will be a minuscule amount of these). In another Astrum video he talks about how different elements create different wavelengths when ionised and this is what causes the amazing colours of distant nebulae.
Fluxx I thought about light but that didn’t sound right to me because photons are literally everywhere! There’s no way that there would be 1 photon in 20cm^3!??
I guess I meant more in the context of defining the density of space.
That John Herschel drawing in mindblowing
Actually there is an award-winning book that details how these drawings were made by Herschel and others in the 19th century. It is called Observing by Hand: Sketching the Nebulae in the Nineteenth Century (University of Chicago Press, 2013) by O. W. Nasim.
Even for your usual high quality videos, this is outstanding. Thank you for that one. :)
Your videos is excellent! I hope you uplopad more videos about this very soon! Thank you for the amazing videos! Wonderful!
Don't forget Peter Quill's sister-in-law is also Nebula.
@Omer Ahmed F
you could've just said Thanos's daughter
Maybe that’s why advanced aliens haven’t found us? (if they are trying to)
buddy,,they created us. why do you think we are here ?.dawinism,?.wrong..go study the indian vedas,or watch viper tv,sumerian tablets.. might learn something.
Very nice explanation. Your channels are very good
A great insightful video on nebula. Never questioned myself if we'd be in one ourself. Great👌.
I have often wondered, if you would see the Crab Nebula, if you were only 1 or 10 Ly away.
I wonder where our sun taking us?
LOVE ALL YOUR VID'S KEEP THEM COMING AND THX
Another excellent and interesting video. Thank you.
I take pride in the fact that I'm named after a nebula (Carina), well... I'd like to think so. My parents just like the name 😂😅
Lucky they didn't fancy coalsack nebula as much.
Oh, no! Does that mean the Moties in Niven's "Mote in God's Eye" could actually SEE the rest of the universe through the Coalsack nebula? We're doomed!
The first moties would have always seen it and gone into the stars countless thousands of years earlier.
Not doomed, they keep blowing themselves up.
No, we're not doomed until the baby elephants start hurling kinetic energy bombs on us from low Earth orbit.
5:52 woah that animation was super cool! I finally understand how the earths map is morphed when using the projection :o
How have I not found this channel before? Instant subscribe
Great explanation, I understand it all. You should be a professor, or are you?
Yes.
everytime I saw an episode of Astrum I feel so little knowledge I have
your meant to be dumb,,dumb people easier to control.even scientists are told what to say,,or they dont get paid,,grants..
Nice information with nicely explanation.
Great video. Love all your videos.