ฝัง
- เผยแพร่เมื่อ 19 มิ.ย. 2024
- Thanks to the Hubble Space Telescope, we have seen nebula like never before. But are they really as colourful as Hubble makes out?
Go to squarespace.com/astrum to get a free trial and 10% off your first purchase.
SUBSCRIBE for more videos about our other planets.
Subscribe! goo.gl/WX4iMN
Facebook! goo.gl/uaOlWW
Twitter! goo.gl/VCfejs
Donate!
Patreon: goo.gl/GGA5xT
Ethereum Wallet: 0x5F8cf793962ae8Df4Cba017E7A6159a104744038
Become a Patron today and support Astrum! Donate link above. I can't do it without you. Patreons can help pick the next Astrum Answers in a fortnightly poll. Thanks to those who have supported so far!
Astrum Hindi: bit.ly/2OawGpx
Astrum Spanish: bit.ly/2KmkssR
Music Credit: Stellardrone - Cepheid
Anima - You are Truth
Image Credits:
NASA
ESO
The nebulae are very colorful right out the camera with no filters. All it takes is long exposures. The clean the noise from the long exposures, we take a lot of them and stack them. The images are beautifully colorful!
I've searched trough some ionised gas emission data , and Aperently Oxygen glows GREEN and Not blue , with hydrogen switching to blue at that energy level . .
so in a way , we do have rgb color pallete for nebule , . just there's so much hydrogen that it washes out any greens yellows and oranges
This is a channel that is worth to watch! always scientifically sound and educational at the same time. Thanks
agreed
I don't know how I stumbled across this channel but I'm so glad that i did.
That was beautifully explained thank you
Amazing video, as always. Thank you for sharing this with us.
have wondered this for years lol. you make amazing videos man.
Used one of my favorite chillstep tracks in the background, fit very well with the pictures.
Thank you so much for all your videos, I would I am the most excited person whenever I see your new videos. Because they are so good and you explain then very well. Thank you
Well done . keep those cool videos coming . I enjoy watching . Thank you !
Excellent video as always. This is easily one of the best space channels
Found this channel by accident while browsing youtube, I was not dissapointed. You sir earned a subscriber
Incredible video! I'm so pleased to have subscribed!
Ahhh one of my favorite nebula pictures. PBS spacetime loves it too.
Another great video. It always bugs me how nebulae are portrayed in movies and TV, as if they're like dense clouds on an Earthly scale.
Some parts are like that, precisely where a solar system is forming. In the Wrath of Khan the Mutaris Nebula is apparently a star forming region.
yep it is worth noting that our solar system is currently inside what to distant observers would be a Nebula from a 2.6 Myr old supernovae remnant but we would never notice without telescopes as the "nebula" emits in the kev (kilo electron volt) range of the spectrum i.e. in soft X-ray light
@@AaronRMG wdym?
@@AaronRMG you should get notifications for this or find the video in your TH-cam history.
Earthly scale`? Well then that is wrong as well...
... since the typical nebula is immensely larger than Earth (or our Solar system for that matter)
Edit: "is", not "are" (or nebulae and not nebula)
I am awestruck by your videos. Outstanding !
I always wondered this, thanks astrum
Amazing explanation! Thank you!
I'm running out of superlatives to describe your vids! this was gorgeous, thank you.
keep making these awesome videos
I used to have a Celestron C-8 telescope, and by far the most colorful object I ever observed was the Orion Nebula. Just astounding reds, blues, purples. Far more colorful than anything I observed in our solar system (everything but the Moon required long photo exposures to get full colors and detail). Goes to just how much energy and scale nebula have. I was awestruck. I 'think' you can even see it with ok binoculars on a clear, dark night away from city lights.
you can see the colours with the naked eye?
wondered if it was coloured in..
you can see with naked eye its just its not really disguishable from being another star in orion's belt.
Thanks, I have often wondered about the colors in images from space.
Fantastic, awesome video, thanks!
informative. Thank you very much.
Thank you for explaining so clearly. The comparisons you make help me a lot. E.g., that one showing a nebula the size of earth and then mentioning it only would weigh a few kilograms. Wow!
Fantastic..you made my day
"To give you a sence of how little that is a comparable cubic cantimeter of water containts 10 quintilion particles". Thanks, that... that helped :P
@Fireball XL5 Yeah, the video should have said a cubic centimeter of *air* at sea level on Earth, as opposed to just saying a cubic centimeter at sea level on Earth. Most assuredly could give the wrong idea across.
Personally, I found that comparison to be more confusing than helpful. I was hoping he would compare a cubic centimeter of cloud matter ( Obviously a rough estimate, as the particle count varies greatly in clouds.) That would have made a lot more sense, since he had already compared the 2 just seconds prior to the chosen comparison.
Those are the boggling scales astronomers deal with. That's why it's so awesome.
@@kari7403 Your conclusions are false:
1. clouds are merely medium density air with high water vapor content
2. That they float in the lower atmosphere means they are almost as dense as sea level air (relatively speaking)
So if air at sea level has 1x10^19 particles/cm3 then Clouds have 0.5x10^19particles/cm3.... hardly a more human number so to speak.
Astronomical scales are not perceptive in any sense.
@@MarkAhlquist If scale is fractal - would that be awesome too? Infinity seems to extend in both micro and macro - with time process of macro being likewise astronomical relative to particles or domains that flash in and out of existence in less time than we can humanly notice. For me a fractal Universe also means Infinity is in fact - exactly this - unveiled.
We have a finite mind/model for an edgeless or open existence which frames this human experience - and perhaps quite literally at billions of infinity frames per second such that a realm of energetic change and motion moves on the face of the 'waters'.
@@mwangikimani3970 You are not aware of the electrical properties of 'water vapour vesicles' - and other ionised particles and gases?
Conclusion: Hubble sees this nebulae as exotic colours while we see it as adorable .
what a great video explaining nebula.. i always find the pictures we see confusing and i can't understand them, but this is really helpful..
thankyou 🙂 x
such a brilliant narrator and script as well
thankyou 🙂
Astrum . One of my fav channels
I recall visiting the McDonald Observatory in West Texas where there were some large commercial telescopes (maybe around 12" mirrors) available to look through to see nebulas in the night sky. They pretty much were black and white and shades of gray. To be honest, I was a little underwhelmed and disappointed.
black and white cones in your eyes are the most sensitive to your eye. You'd need to gather a lot of light to see color
telescopes mostly capture in black and white.....
Great video. Thank you!
Cool video bro
Awesome video. Loved it. Just one thing, I was wondering why birds chirping were added to the background music around 0:36. Space birds flying threw the nebulaes?
*Nothing can quite compare with simply looking up at all the shimmering stars studding the vast dark blanket of space, all through the glass roof of my spaceship, while listening to the birds twit n sing.*
A nebula the size of the earth and it could weigh around 3kg that's totally insane ? shows how diffuse they can be. Astrum mind blown thx never stop........
I'm 2 years late, but I'm an astrophotographer, and I really enjoyed this video. So cool that we can image this stuff from home!
3 years late here!
doesn't alter how interesting it is though 🙂
Very illuminating 😁
Awesome!!!
Thank you for being awesome!I love how you present information.
Subscribed! 🙂
Amazing!!!
I enjoyed this.
One question that has worried me for years is about the transparency of gases. Helium and hydrogen are transparent so how come the images of star-forming regions of nebulae look so "thick" and dark? Are those gases opaque when hot or compressed? Are there huge transparent gas clouds somewhere, and how could be detected?
How many times did the enterprise take refuge in a “dense nebula” to escape an alien enemy. Sorry captain, there are no dense nebulae in space, we’re sitting ducks
Exactly! The third acts of Star Trek 2 and 9 are preposterous - - - Star Trek has never been scientifically valid
Well, if the nebula is still young and not yet spread out, it's obviously more dense
i want to see them hide in a protoplanetary disk...
I know a lot of nebulae are super red and dim so the hubble palette makes it look great. I can't do that with my equipment but it's still pretty
Awesooome! By the way... The thumbnail image... Can I download it from somewhere? It would make an awesome desktop wallpaper!
Great work! Keep it up!
Looks like its the crab nebula. Maybe in X-ray?
There are search engines which search backwards. You should try it. Then you will see who uploaded this picture, sorted for size or whatever you choose. And then you can look who let's you download it.
NASA allows, if it is their content. ESO too, if I remember right. Look for backwards picture seach engines. I am sorry in the moment not to remember any name. But they work excellent.
Good luck!
The old thumbnail is the Bubble Nebula www.spacetelescope.org/images/heic1608a/ and yes, the new one is the Crab Nebula
I think this video shows a good glimpse of what the universe really looks like, a lot of red.
The radiant energies are look like' to the capacity to read or record them. The EM field is within or beneath appearances - as a cellular and filamentary 'self-structuring' flux that has a non local substratum to whatever local expressions - that include EM radiations - and neurons and biological cellular matrix.
We are brought up to think life is inside us - but is it through us as a unique expression of an Infinite?
Or more blue, or darker
Basically, depends entirely on what's nearby to illuminate the surroundings, but probably very beautiful nonetheless
I think some people missed the joke
@@PyroXVuurwerk yup
Astronomy picture of the day web site says on each page if a photo has been altered to see certain things like you mention.
Thank you
Will you upload a video about Keops satellite of ESA? It will launch on december 17th
The thing you always see in sci-fi are these solar systems and planets bathed in the light of a huge nebula. I always wondered how much artistic license the production team were adding to the look of these places. What would our world look like if it was right next to the horse head nebula for example?
It would look dead from radiation mostly, but the sky would look pretty.
Love every one of your videos :)
When we die our souls live in the nebula. The RGB one was mind numbing.
You might have mentioned. Hubble pictures start out as shades of black and white. Individual images from Hubble's cameras retain no color information as such, other than the color of a filter, which selects a range of wavelengths from the full spectrum of light. A black and white (monochrome) image most realistically represents the range of brightness in such a single image. Just a little clarification.
But at 4:43 he says Hubble does take color images.
If learnd something today! 👌🏼
Same lol
Thanks!
Holy cow you used the feature
what something 'looks like' depends on the eyes you possess, how sensitive and what wavelengths they detect. So, one could say that IS what they look like, but not how our eyes would naturally perceive them.
I wonder what they would look like through the eyes of a mantis shrimp.
I like looking for images inside of clouds. At 3:13 on the left, I see a dog with two small black eyes, a big round nose and his mouth just below his nose.
I see Donald Duck..
Okay say yeah the colors aren’t real, but what a simple yet efficient af way to know what the particles are and in what concentration. That means if an RGB splits as separate overlays, the white would be a visual concentration of everything in high volume, but in a flatted 2d perspective because of the heat mapping. Sick🤘🏽
yeah
if u make a video about skyhooks i’ll join your patreon.
If you were a dust particle, would you rather be trapped in the burning inferno of a star for billion years or blown into a mega void for eternity?
I would say a star. Depending on what star I'll be in, I may be recycled into a supernova.
@@NeuteredSmurfs bruh? Seriously? 😁
Nebulae are one of the most beautiful things in this universe
@TheParrotPapa nebulae
The "Mothers" of stars
TheParrotPapa girls 😉
we are born from one!
No, you are ❤️
What about moons & planets ? I whould like to see x - ray photos of moon .
I think misconceptions some people have arises from them thinking that digital cameras can take color photos.
I really like the pillars of Creation
Why does the nebula at 0:40 appear to be lit from the top down?
The process reminds me of some of the fractals I used to make. Take the same image, color it differently a few ways, then combine all those together.
What happens if a star is formed in a helium cloud and is made mostly of helium
3:15 There is a (smiling scary) face just above the center...!
Lmao
Do those nebulae appear more red because of red shift? What would they look like if we traveled there?
Redshift is not noticeable. Hydrogen emission dominates about 10 to 100 times more than any other light. Most pictures need the red light toning down to make a nice image.
Was hoping that you would mention that our solar system is in a nebula called the Local Bubble.
@super extreme David PiacenzaSomehow, common sense and common knowledge are not quite common nowadays 🤷🏻♂️
I'm curious, are these the emission bands that we see in the lab, or are they corrected for the "stretching" of the wavelengths due to overall expansion of the universe? If the latter, then are each nebulae corrected for their specific distances from Earth??
Red shift is pretty insignificant on these short distances, it only starts really mattering with distant galaxies and you aren't going to see any nebulae that far away.
@@sinxar2471 Quite significant at a few hundred million light years difference (a few % is quite a shift).
0:53 The gas density of a nebula is far less than any artificial vacuum produced on earth 🤯
All I know is nebulae are Voyager's worst enemies toping even the Borg !
nebula are so pretty 🥺
i would image a cloud of dots, or 1010001001001 in the feed
Worlds without number.
Question for all you smart people , if nebula are where stars are born and the nebula's particles are insanely diffuse then how can such a weak force as gravity pull these particles together to form a star ? Sincere question.
thanks Alex. Hey, could you do a video about the taurid meteor stream. Thanks.
What about the eye of terror? Lol jkn
I always knew that the matter in nebulae was sparse, but never realized just how sparse!
Guess even the world's smartest man (me!) can learn something new!
Nebulae are extremely faint in reality. Orion constellation, for example, is covered in one huge nebula. But you can't see any of it with the naked eye.
So, if I got into a starship and flew out to these nebulae and parked 10 ly or 5 ly away, or even inside, and looked out a window I would see... what? Colored clouds? Or would I be too close to see them at all?
With your natural eyes? Most nebula would appear as a faint glow. The only reason they are so bright in photos is because of the long exposure time. However nebula like the Tarantula Nebula... That would be really bright!
@JD babez exactly :)
Is that steppenwolf at 5:07???
Hold on a sec 4:09, i see the Hydroged spectrum,is this why we only got blue/white/red stars?
When and where does size start or begin that determines the size of the rest?
Your straight answer would likely be 'atomic weights' from which one then extrapolates larger masses - in a ball park way. Size as volume is - I feel - on shaky ground because some ideas are sacred cows that everything else has to fit - like redshift as a determiner of distance.
IF we have any error in the foundation - it amplifies in the model. What price consensus?
Size is volume - but do you mean mass or density or all at once?
We set our datum point for bigger and smaller. The infinite in the infinitesimal is an ancient idea of the One in the Many and the Many in the One - which in scientific terms might be 'holographic'.
But size is relative along the scale of its polarity.
Is it our model that confines us - while also serving a purpose?
The mind-body split led to Universe as Body (matter) and a self-alienation that cant find Home in it.
Size is a quantity our brains use to assess our perspective of the universe indicating some relation to causality. The best understanding is probably the current SI definition of a meter. "A meter is defined as the length of the path traveled by light in a vacuum in 1299,792,458 of a second." In short in science our standard units are defined based on the fundamental constants of the universe but it should be pointed out that space and time as we understand them are computations of the brain based on sensory information in order to convey enough information to survive long enough to reproduce and pass on our genetic material via evolution. They are in no way guaranteed to represent the universe accurately. Quantum mechanics does however provide a minimum knowable scale with plank units based off the uncertainty principal of quantum mechanics
@@Dragrath1 You may notice that we have shifted to non human constants.
Size is simply relative. because science is extending our mind to non human reality that requires precise mathematical definition - we need the new ways of defining - but we also need to bring it into human significance rather than use it as a leverage to invoke human insignificance.
There is a sense in which we are nothing - of ourselves - and yet we are NOT of ourselves - but are each and together Perspective within Existence - regardless the contents of our mind or the use to which we put it.
It may be that constants are relational coherencies that may not under all conditions have a constant numerical value, the belief that they must be a fixed constant value would dictate any variation to be error.
I see the formless or non local and non physical as 'qualities' with the expression into quanta operating a reflective sensing perception that evolves or unfolds as consciousness - but not as we define it for ourselves in terms of a dissociated sense of self that can imagine and play out options without having to act them out as part of its 'relational expression ' OF its Environment - which is Qualitative self-recognition - in formation or in structural and functional relation that holds a certain self-sustaining framework for development.
In conclusion, telescopes are the best artists 😂
Now you know
Why is Orion upside down?
Wat to be accurate as a rare occurrence on this space
You say "Electricity ionizes neon in the bulb causing it to light up" as you display a sign that employs xenon. Neon emits red.
Neon emits orange actually....
No matter what gas is, all those lamps work in the same way 🤷🏻♂️
Aren’t these shot in infrared?
Some of them do have infrared filters, yes
Thanks.
Nebulae have colors, the problem is that the only way you can see the colors with any clarity or brightness is with the intervention of technology (long exposure photography and post-processing). If you were to go out into the Universe with nothing but a spacesuit and your own two eyes, you would never be able to see all of those sights and colors. Our eyes see such a limited part of the light spectrum and they aren’t very well adapted to dark environments. And the distances in the Universe make it impossible to ever get close enough to see any of these structures in such impenetrable darkness. So the Universe to the human eye is unfortunately way too big, way too dark, and not so beautiful.
I remember when I first saw an image of the Horse Head nebula. Even now, all these years later, it's still difficult to take on board just how massive they are. Thanks for your insight. Amazing!
Its difficult to take on board just how tiny we are! 😊
What nebulae is that at 0:23? The left side of it kind of looks like a massive hand and part of the forearm. Its like the hand of God. That, or it's of a Space Giant!
Check the top left corner, NGC 6357, also known as "War and Peace Nebula" or "Lobster Nebula"
Pronunciation guide...
Ne-bu-lah is singular. (Nebula.)
Ne-bu-lay is plural. (Nebulae.)
Every source I found pronounces nebulae with a long e at the end -- Ne-bu-lee.
This is why this is my favorite channel on TH-cam. I knew the images were composites but I never stopped to question the meaning of the colors. Great video.
The colour out of space
What is the real color?
Am I only one to see images of skulls in all the nebulas🙄😅