On behalf of Earth, I have to ask all those galaxies moving away from us: “Is it something we said?”

@iodtiger2

26 күн бұрын

It's because we stink😮

@jolo3118

26 күн бұрын

I think it's because we are a carbon based being that destroys everything we touch. I don't want to have anything to do with the human race half the time.

@Crocotcrocfr

26 күн бұрын

Bleep vlorp, poopoo stik, dsa n Utica. Fchff. Gucci to tu if👽

@jimcoppa6946

26 күн бұрын

Absolutely hilarious

@alexandrebaelyrion9621

26 күн бұрын

🤣🤣🤣

Improving knowledge is getting better, not "worse". It is not a "big problem". In the future things that are taken for granted today might be proven to be mistakes tomorrow; that is science.

@rikulappi9664

21 күн бұрын

"Crisis"? WtF! How about a facinating mystery or energizing contradiction? Or just science at it's best?

@wadeodonoghue1887

18 күн бұрын

Most people's biggest problem: " How will I pay Rent" Scientist biggest problem: "How fast is everything moving away from us, Exactly" Such wildly different lives we live.

@ESL-O.G.

18 күн бұрын

It's just an expression😂

@gregoryleonwatson8631

18 күн бұрын

Science clearly has a good definition of itself 🤗 Pseudo Science defines everything ✨Not Understood Yet ✨ 🤯

@Elaphe472

17 күн бұрын

@@ESL-O.G. "It's just an expression" is also just an expression.

You know what is interesting? All the debates and competing views were completed without anyone being burned at the stake or condemned as a heretic.

@lanceknowlton1871

23 күн бұрын

It was more civil than today's debates.

@wadeodonoghue1887

18 күн бұрын

From what I hear it isn't the easiest to convey new ideas in the upper echelons of your scientific discipline, Evolution has had some big holes that have not been commonly recognized until recently. Money is also a factor, so fewer people are interested in the expansion of the Universe than the expansion of their bank account, so when news about the expansion happens fewer people have an interest in Reality Objectively as apposed to Reality Subjectively. So we have less comprehension as a sum of all the comprehension of the minds on our planet. I agree we are more civil today, although we still have skins to shed it seems.

@axeman2638

16 күн бұрын

want to bet? anyone that dares questions the false unproven assumptions of cosmology gets excommunicated.

@jimshepherd3841

16 күн бұрын

I Don’t Think it’s off the Table 😂

@Mrch33ky

14 күн бұрын

You obviously haven't been keeping up with the literature.

Moments like these are the most exciting moments in science.

@JIRKA_Praha

7 күн бұрын

Hi there Simon, seems to me JWST GOT TALENT ;)

@RekySai

6 күн бұрын

I didn't bother watching this video because it's already general knowledge that the expansion of the universe is under one. It's around .86 which means the universe will slow down at some point. But I bet this video is saying otherwise

@simoncoweII

6 күн бұрын

@@RekySai Say no more! Rest assured, it is immediately obvious to anyone who meets you-online or offline-that you have not reached such a caliber of intelligence by partaking in the hobby of watching educational videos. Don’t you worry about that. Thank you for enlightening my humble comment thread with this breakthrough in astrophysics.

Except for our current assumptions this is hardly a “crisis” or a “problem”. It’s science and it’s a wonderful and exciting question. This is how science works, by following the facts wherever they may lead.

@Lethgar_Smith

13 күн бұрын

Yes but, despite the rigors of the scientific method that scientist prescribe to, they are highly defensive and reluctant to face any question of the established accepted theory. Whenever new evidence emerges that upsets the established cosmological view, there is always naysayers and those that will refute the new thinking to the end of their days. Which is a very unscientific.

@jerrypolverino6025

12 күн бұрын

@@Lethgar_Smith No. That’s not at all how science works. I don’t know where you got such a crazy idea.

@thomas-gw3xf

12 күн бұрын

universe approaching a division ie akin to a cell division thus another "cell" formation in the body containing the process we are a universe in a pimple on a gigantic Giant's ass !!!!

@5337kb

11 күн бұрын

Yes, but it it changes the narrative of what we have claimed to know for centuries, it means we literally have to.l audit the info we have taught for years. Science is no longer about "discovery" or a search for knowledge, it's now about finding ways to do more with less money, for example, "high powered new telescope" stares at stars, not looking at the stuff closest to us (Trappist system) Andromeda, zooming in on Mars, Jupiter, Uranus or Pluto, instead it's focusing more on 14 billion years ago instead of our own/closest neighbors, things we could ACTUALLY reach in the near future and the funniest thing is, jwst is actually TOO sensitive to actually look at out neighbors the light reflecting off them would literally burn a hole/cauterize the lenses and equipment, don't get me wrong jwst is awesome but shouldn't we get to know our neighbors first before looking at a nother country? (Metaphorically speaking)

@CaptainBlaine

8 күн бұрын

@@jerrypolverino6025don’t bury your head in the sand. Just look at the medical research community as a clear example. This idea of science as defined by popularizers, ignores the politics and confirmation bias inherent to any human endeavor.

I'm expanding way faster than the universe!

@karelvandervelden8819

20 күн бұрын

Do not worry, you will implode again.

@d4mterro320

18 күн бұрын

you're a man.

@Chrisoula17

17 күн бұрын

I’m boundless.

@asmith1711

17 күн бұрын

Sounds like something my MIL has shown me over time.

@Blackbird_Singing_in_the-Night

17 күн бұрын

I wonder if there is a ‘universal equivalent’ of the ‘middle aged spread’? I can only confirm that it is constant and persistent here on earth!😂

Mind officially blown! Webb's findings on the universe's expansion are mind-boggling.

@MegaBob222222

19 күн бұрын

All based pm Theory and it is in reality "so called science"

Seems like the more we learn, the less we know.

@gjpyoung

7 күн бұрын

Exactly!

@thomaswayneward

6 күн бұрын

It will always be that way.

@BobbyJardine-vs8yc

7 сағат бұрын

Also,the more we know,the more we know we don't know

We don't know didly!

@absurd..

26 күн бұрын

We know more than yesterday

@craig7350

26 күн бұрын

Bo?

@maccloud8526

26 күн бұрын

And didly is expanding at a faster rate than expected.

@JoeDeglman

25 күн бұрын

The main problem is that redshift is mostly an intrinsic function based on atomic density or magnetic flux density, not doppler. The expanding model is based on the sci-fi model of Einstein.

@mikehannan8206

20 күн бұрын

​@@JoeDeglman Yes Joe is correct! For those looking to advance their knowledge beyond the standard (blinkered) view of cosmology, the best sources are Ray Fleming, Eric Learner, and Pierre-Marrie Robitaille. Good luck truth seakers!

There is no crisis in cosmology. We are advancing our insight. Its progress. The laws we handle in science are the best we have.......untill we learn otherwise. That is why agnosticism is the best attitude. (also socially)

@PeterKoperdan

17 күн бұрын

*For the people not understanding the problem/crisis framing of the new cosmological evidence that's coming up:* Cosmology is like a "house" of complex interconnected theories that not only explain observation, but also predict phenomena. This prediction aspect is an essential element of science. Theories must predict phenomena accurately if they are to be valid. When actual observations conflict with theoretical prediction (the prediction is wrong), then the theory has a problem. If significant observational challenges to theories keep accumulating, the problem keeps growing and can eventually be labeled "crisis". A crisis would mean that essential foundational theories are challenged to the extent that their validity would be suspect. Once the foundations of your house are shaky, the whole house could come tumbling down. This is basically called a "paradigm shift" (Thomas Kuhn, The Structure of Scientific Revolutions). From the perspective of a lay person interested in science as a hobby or even a scientist that is not in physics or astronomy, this is not a crisis. It's just inevitable evolution of scientific understanding. It's actually exciting. However, for the people from the scientific fields whose careers are built around science which becomes obsolete, this is indeed a potential crisis. Shaking up the foundations of cosmology and related science could turn into a period of chaos for the people involved. For some scientists a paradigm shift would be a blessing, but for many it would be a curse for a number of reasons. A paradigm shift in science can negatively impact scientists by rendering their expertise obsolete, diminishing the relevance of their research, and complicating efforts to secure funding if their work aligns with now-questioned theories. Additionally, their professional reputation can suffer if they are closely associated with discredited theories, potentially stalling their career advancement. The psychological toll is also significant, as adapting to new paradigms can be challenging for those who have invested heavily in the old ways of thinking, causing emotional and psychological distress. These factors contribute to the entrenchment of existing scientific paradigms because they create a significant inertia against change. Scientists, whose careers, reputations, and emotional investments are tied to established theories, may resist new ideas that threaten their professional standing and the validity of their past work. This resistance is compounded by institutional mechanisms, such as funding priorities and publication biases, which favor established paradigms. Consequently, the scientific community can be slow to accept paradigm shifts, despite the foundational principle of science to continually test and revise its theories based on new evidence. This entrenchment is a natural human response to the risks associated with fundamental changes, reflecting a tension between the ideal of objective scientific inquiry and the practical realities of career-driven scientific research.

Thought provoking!! If there's a missing link( which seems plausible after the discrepancies found between two measurements) I hope it will lead the field of Physics and Astronomy to a greater understanding of this existence. A well analysed episode it is!! 💯🙏🌌

@marko-1987

21 күн бұрын

Bang on.

@mikehannan8206

20 күн бұрын

Irene, alas, that is highly unlikely. Cosmology is well and truly stuck in a rut, and all tenured professors steadfastly refuse to re-examine the foundational assumptions.😢

@mikehannan8206

20 күн бұрын

Irene, alas, that is highly unlikely. Cosmology is well and truly stuck in a rut, and all tenured professors steadfastly refuse to re-examine the foundational assumptions.😢

@irene_renaissance

20 күн бұрын

@mikehannan8206 maybe not in our lifetime but can't eliminate the possibility entirely. We must not be ignorant of the fact, that time plays a pivotal role in shaping up such unlikely thoughts into reality.

What if physical constants are not constant over long time?

The thing I really like about SOU is that their contentjust keeps getting better and better. I have been watching your videos for the past three years now, and this was the best one so far. The animations, script, narration by Jeffrey, and presentation was top notch! Please keep it up. Looking forward to more :)

I know I'll be laying awake all night worrying about this crisis!!

My waist keeps expanding.

@edwardenglishonline

19 күн бұрын

🤣🤣

@rodneyjoubert

11 күн бұрын

😅😅😅 can't stop laughing 😅😅

Excellent presentation. Am I right to understand that the rate of expansion, though obviously very important, is really quite slow compared to cosmic distances and velocities? Or am I missing something?

Since we now know that the speed of light is not a constant, maybe someone should consider the impact of that.

@karamba1920

19 күн бұрын

you mean not a limit

@sbcap3809

17 күн бұрын

I think that what was said, is what was meant to be said.

@SCM0NDT

8 күн бұрын

Speed of light is the same (in a vacuum)....but time depends of density/gravity... What is speed if time is changing?

Wait wait wait….I thought the science was settled?

@porkeywings

11 күн бұрын

Man we dont know shit

I am happy to see you start to make videos again SOU

I wish I understood. Don't values closer to a line mean the difference is less?

Excellent video, thanks.

It’s almost like we don’t know everything and act like we do.

@MsPabloRms

24 күн бұрын

I think you have mistaken this by some religious video. This is a science page, scimce is a tool we use to learn our reality. We'll never know everything, and the video itself mentions many disputing theories which is literally saying "we dont know that yet"

@johnmichalski5981

23 күн бұрын

​@MsPabloRms Science can only scratch the surface of reality, which is beyond our comprehension. We need to accept our limitations, and the limitations of our tools.

@MrGrumpyGills

23 күн бұрын

@@johnmichalski5981 Sure, no problem. Science doesn't claim to explain everything in the first place. That doesn't mean that religion is an answer - for anything, really.

@MrGrumpyGills

23 күн бұрын

Who's we? I certainly don't act like I know everything, nor do I know anyone who does.

@anthonycarbone3826

23 күн бұрын

@@MsPabloRms I have heard very few scientists say WE DON'T KNOW IN ANY FIELD. You are so naive to believe that SCIENCE TODAY is not one of the biggest scams in the Universe. Not that real science is not being done but it is so hidden in the pure crap it is hard to find.

No big bang, that's a theory that seems to be taken as fact but they left out two important factors in their calculations, quantum physics and consciousness. Universes are constantly passing through one another and occasionally create another universe. Yet everything we observe is an illusion, distance and space is a single point/location, HERE. Time is another illusion as there is a single moment, NOW. . In each second of earth's time, there are measurements we refer to as Planck TIME, the length of time it takes light to travel the diameter of an atom. In each moment of Planck Time, a parallel and completely new universe is created. And there are 14billion X 10Million Planck Times per second. This creates the illusion of linear time. And the really good news is, we are the creators of all this. We are HERE NOW always. 💥

Great and cool video! I would really like to know in which directions these measurements against supernovae and galaxies are made? Even if the coordinate system in the universe is surely defined in some way, so if the measurements are made in roughly the same direction, will the values ​​be correct? Think of the center of the Milky Way as 0 reference (take into account the movement of our solar system in relation to the galaxy) Then from 0 measure in X, Y and Z. 180 degrees X,Y and Z will thus be the opposite direction. So what are the results in different measurements? According to the Big Bang theory, the space between galaxies expands. Like multi-layered balloons, the outermost layers even faster than the ones inside. Thus everything moves apart, even galaxies moving in the same direction as us thus appear to move away from us regardless of whether their positions are inside or outside us. Even greater differences if we study galaxies on the other side(?!). I know this is considered paradoxically contradictory because it would imply that the universe (big bang) had a center. Scientists return several times to say that the universe does not have a center, a starting point does not exist - but that hypothesis still feels wrong to me because they are still allegedly able to "reverse the expansion" and calculate when the Big Bang occurred. Does anyone know of these measurement points that have been made and can give me sources?

It feels like Schrodinger's cat... Like the observer plays a role in what is being seen.

@Lethgar_Smith

13 күн бұрын

There is a new theory that the universe is a holographic projection, the source of which is our conscious awareness.

Is there a difference in the direction they are looking at?

excellent summary.

@9:44 Using a hypothetical model to confirm an unknown constant. What could possibly go wrong?

This is an excellent video. Thanks

Does not seem right that there is a rapid stretching of space ,in between galaxies , with such a high speed??? If expansion of space is occurring that fast----- how can we see any galaxies --- how it is possible to see/ observe these galaxies???? Something is not right here.????

My first question is this: does the rate of expansion need to be constant? What if the measurements are accurate and the rate of expansion is different because of an unknown force increasing the expansion rate ever so slightly (in relative terms ofc)

Variable speed of light

@johnbjorkman4144

5 күн бұрын

Or, light speed is constant, but it shifts toward the red as it ages.

Good video

As always, a lesson in how to make it easy to understand concepts that are not so easy... 👏👏👏

If m is the absolute value of a star's true brightness how can it have a value of -4.85 since absolute value (modulus) is defined as the distance from zero it is always expressed as a positive number.

There is no crisis. And it's not a problem. It's impossible to measure the size of the universe because it keeps expanding everytime human consciousness focus on it!! This is just the way it is!!

@a.f.stevens

26 күн бұрын

I'd like to clarify, are you under the impression that the universe is only expanding when we observe it? If so, what do you mean by "observe"?

@summerhypersniper

26 күн бұрын

I believe they're referring to when we observe atoms via our eyes on a microscope they are more likelier act out of the ordinary. Same goes with telescopes with this theory.

@14489

26 күн бұрын

yes and before humans it was expanding because dinosaurs used to observe it.... and before that... alien dinosaurs used to observed it, till we get as far back to the big bang.

@rkadowns

26 күн бұрын

Write your paper. Let the world know you figured it out!

@michaelbokrosh7374

23 күн бұрын

Yes, an expanded form of the heisenberg principal!

How is it possible to calculate all the light slowing as it passes through untold amounts of gas and interference on the way to us? I understand the calculations, but they seem to work on the idea that the light is never slowed by unpredictable "stuff" on the way to us

Somewhat weird to call this discrepancy ‘tension’, since as far as I am aware that’s not a term used in other fields. One solution, is that BOTH answers are correct, in which case some kind of phase-change would have occurred between the time of the Cosmic Background Radiation was produced, and later galactic measurements.

If you analyze the CMB you can see a great void which would infer the central point of the expansion, the location of the origin, now why would we assume that the expansion is uniform? Maybe pockets of matter based on their cluster density would not have the same rate of expansion so the expansion itself is not collective, but is relative to the matter density of the galactictic clusters.

A ''crisis'', till you hear that it's been only a hundred years ago that they were debating if the Milky Way was all there was or just one of many galaxies.

Have to say that the 'dominant' theory seems hopelessly naive.

its not just the universe its everything

So based on the measurements the age of the universe can and has been calculated. So what is it?.

No crisis: Light looses momentum (red shift) over long distances. "The "tired-light" hypothesis, claimed that galaxies' light reddens because it loses energy as it passes through space. In this scenario, distant galaxies are red not because they are moving, but because their light has traveled farther and gotten pooped along the way." Presume the universe expansion isn't accelerating & calculate the lost of momentum over distance.

How do we know that our known universe isn't just some cosmic drop of condensate that formed on the glass of cold liquid some alien being is drinking and his gravity is causing it to spread out? What happens when he finishes his drink?

The Hubble constant clearly can be interpreted as a measure for the acceleration of galaxies relative to each other. And yes, that can be interpreted as the expansion rate of the universe if you like. In the Acceleration view it should be possible, by reverse calculation, to obtain either the Force associated with the big bang or the mass of the initial universe. Even at a large scale, Newtonian mechanics often apply.

Think about it. There are other universe is out there and they’re gravitational. Pull is affecting the expansion rate of our universe. It’s a multi-verse people. That’s all there is to it.

@motleyh9427

22 күн бұрын

Yup. Universes are just groupings like galaxies. They affect each other gravitationally and merge. There are “big bangs” constantly happening in the cosmos. Probably caused by universes merging. It would explain why the expansion is not the same in all directions and also the mystery of stars or galaxies that appear too old to be part of our universe. Everything they keep finding out points to this. Humans have a problem with scale. It’s infinite both ways.

@karelvandervelden8819

20 күн бұрын

@@motleyh9427 Yes, this universe must be a local event. Its more logical when we accept infinity.

@sceptic33

19 күн бұрын

to my mind "the universe" is all encompassing. the one song that contains everything. there cannot be more than one everything. talk of other universes is nonsensical . there can be only one "all".

@karelvandervelden8819

19 күн бұрын

@@sceptic33 Yes, language put us(me) on the wrong foot. Better; ¨Infinite bigbangs in universe¨.

The real problem is the naive assumption that all typev1 supernovae have the same brightness. There is really no good reason to assume this. There are examples of type 1 supernovae with no observed stellar remnant, showing that two white dwarves collided to generate it. So not all explosions are the same, and it makes them useless as a standard candle.

I was about on my sixth beer, and when I briefly looked at that thumbnail image of JWST I thought it was Bart Simpson riding on a surfboard lol !

@raphmaster23

16 күн бұрын

I'm not drunk but now I can't unsee it lol

We are looking back in time. So it seems if things are moving much faster long ago would that mean that much closer objects would be a better indication of expansion? Gaging the expansion further back in time seems counter intuitive. ❓❓🤔

@summerbrooks9922

26 күн бұрын

Absolutely you got a very basic fact in the logic line, there. If you look back in the past where the universe was in a tumble, is it worth measuring for now? Congratulations for being reasonable. I appreciate you very much.

@evaryLloydJasonMcCuistionaliov

20 күн бұрын

Ding ding! Logic champ! Gratitude. Reward insight: looking outside the being is always a measure of the past, the future can only be seen within

@Cowface

20 күн бұрын

Looking at close objects will only give you the current expansion rate, but looking at both near and far will help you see the change over time.

@jasonfusaro2170

19 күн бұрын

Perhaps the assumption is incorrect. Light speed is affected by the medium through which it travels. Perhaps the medium of space varies with distance? Remember the images we're shown are not actual but created by software which interprets electromagnetic waves or frequency and converted to visual representations. And electromagnetic waves do interact, canceling and enhancing and radiate spherically in all directions. Viewing the universe as spherical it's impossible to find it center from where we currently reside. We can only be on the outer edge of the supposed bang, the center or somewhere in between. We can rule out the outer edge. If we were the center then there would be no way to determine which direction of the outer sphere was the exact center in the past. Lastly if we're in between there is no way to determine where the center of the sphere originated. That diagram of the expansion is a nonsensical representation of an explosion, it would be spherical not funnel shaped. Then it's closed, open, positively curved or negatively curved. It might even be static.

@MrMwirth47

17 күн бұрын

How does something appear in and move through nothing?

There's a mistake in the diagram shown at 8:50. On the upper right the absolute magnitude is mentioned, which should be m = -4.85, not m = 24. At the same time, at the lower left the apparent magnitude shouldn't be m = -4.85 but m = 24.

We are no more than a simulation in an alien computer, the universe is expanding because a memory upgrade is currently underway.

@johnmichalski5981

23 күн бұрын

😂😂😂😂😂😂😂😂😂😂

@asmith1711

17 күн бұрын

Time to put the illicit items down buddy. You've had too much.

@Johan-rm6ec

17 күн бұрын

Put a needle in your finger and say it again.

@Sgt_Bill_T_Co

17 күн бұрын

@@Johan-rm6ec And thus the humor was missed.

@Sgt_Bill_T_Co

17 күн бұрын

@@asmith1711 And thus, as always, the ignorant, are ignorant of the humor.

Your channel has become a trusted source for me. I appreciate the integrity and credibility you bring to your content.

What if I told you... that the Doppler effect is not the only mechanism that causes the cosmological redshift?

@summerbrooks9922

26 күн бұрын

You would be correct in stating that. Alton Arp, astrophysicist, stated in his study on red shift that the spectrographic evidence revealed an intrinsic variation.

@colincampbell767

11 күн бұрын

@@summerbrooks9922 It's Halton Arp and his theories have been discarded with the advent of better and more precise observation instruments. If his theory was right the observations from modern instruments would have produced results consistent with his theory. On recent study with find inconsistences with quasar redshifts - but nothing to the point that supported his theory.

Amazing.

The idea that The Milky Way was the entire Universe proves how far we've come and how far we still have to go. Dark Matter and Dark Energy seem as absurd to me now as that previous presumption.

Lots of love n Blessings ✨✨✨✨🙌🙌🙌🙌sou

"There will always be something else" - The Universe thinking to itself

Read Mark Twain's comments on scientific extrapolation. I think it has some applicability to the question at hand.

If space is "stretching" or expanding....then what is happening to time?

They forgot to carry the 2

Anyone know a creator that gets to the point?

From the perspective of the other galaxies moving away from ours faster. Would not those "expanding away" galaxies not have the same perspective as we?

@birrextio6544

18 күн бұрын

Those far away galaxies would have the same problem and one of those problems is that our solar system didn't exist yet and what we see far away maybe don't exist anymore. All we can say is that the expansion is faster the longer time we look back, in other words, it may slow down.

@phillipellison4758

17 күн бұрын

@@birrextio6544 Hmmm , you have me thinking. Thank you for the reply

@colincampbell767

11 күн бұрын

From their perspective everything in the universe is moving away from them. Think of a balloon. You put a bunch of dots on it and the slowly inflate it. From the perspective of every single dot - they are standing still, and all the other dots are moving away from them.

@birrextio6544

10 күн бұрын

@@colincampbell767 All of us here know this, the question is, do they move away faster or slower. It depend on if you think of distance to them or how long back in time we see them. The answer is probably some complex math that include both way of thinking but nobody explain that for us, we just get a simple answer based on distance.

@colincampbell767

10 күн бұрын

@@birrextio6544 From the perspective of each dot - the further away another dot is - the faster it is moving away from it.

the potential lack of homogeneity in the universe could demonstrate why the hubble constant is not constant: the dark matter between us and the observed point is the interference of something yet not understood, or the dark energy is fluctuating (or the way we understand that quantum fluctuations occur spontaneously and mass is transformed to energy to create large sudden particles but imagined on a larger scale); I am interested and slightly more assured with the way the CMBR has been used to understand the difference between 74 and 67 kms^-1mpc^1 , I hope james webb demonstrates it in a new picture of cosmology and astrophysics! @TheSecretsoftheUniverse

@Apollo1011

26 күн бұрын

I agree, dark energy works at different rates at different times and places. They should study the rate of expansion in a place such as Bootes Void and compare it to the expansion in a super cluster.

Suppose any one of the mathematical variables used to establish brightness or distance is flawed then wouldn't that cause this problem?

Can you do a video explaining how the change with the Hubble Tension will affect the time line of collision of the Milky Way and Andromeda Galaxy..and if galaxies are moving away from each other, how and why they will collide?

@TheSecretsoftheUniverse

2 сағат бұрын

Changes in the Hubble Constant won't affect the timeline for the collision between the Milky Way and Andromeda. Andromeda is too close for the expansion of the universe to have a significant impact. As a member of the Local Group, Andromeda is in a region where gravity dominates over cosmic expansion. It's important to note that not every galaxy is moving away from us. There are many blueshifted galaxies as well. Hubble's Law states that galaxies in deep space are moving away from us at speeds proportional to their distances. The term "deep space" refers to galaxies more than 10 Mpc away. Andromeda, however, is only 0.78 Mpc away, making it an exception to this rule.

I noticed that in 2018 the IAU voted to add Lemaitre’s name to the Hubble Law so that it should read Hubble-Lamaitre Law. Does that also apply to the Hubble Constant and the Hubble Tension?

@st.maryswestvilleil863

26 күн бұрын

In an email response from an Associate Professor of Astronomy, she said “Yes.” It should read Hubble-Lemâitre Law, Hubble-Lemâitre Constant, and Hubble-Lemâitre Tension.

Are we expanding too? Some are 😂 but maybe we have universal expansion down to the subatomic level? How would we know with everything being relative - relatively speaking.

@edwardenglishonline

19 күн бұрын

🤣🤣

If the expansion is speeding up, I think that kills the expand/crunch notion. Another thing that you don't hear very often, because it's a bit scary to grapple with, is the fact (according to the math) that just after expansion began the outer edge of the universe was moving outward at infinite velocity. How far can it travel at infinite velocity? 🤔🤯

@colincampbell767

11 күн бұрын

The period of 'inflation' in the early universe demonstrated that spacetime itself can move faster than the speed of light. In fact, this is the basis for theoretical 'warp drive' that compresses spacetime in front of it and expands spacetime behind it in order to move faster than the speed of light - despite not actually moving at all.

thanks!

How do they know the apparent brightness of a star is not affected by occlusion from clouds or by lensing effects from strong gravitational bodies?

I think that instead of the universe expanding at an increasing rate the method of measuring is failed, and is revealing a new aspect of physics we haven't gotten a grasp on.

@colincampbell767

11 күн бұрын

So every method of measuring is wrong? And wrong in an oddly consistent manner?

SOU is on of the best Astrophysics channels. Cool Worlds and SEA also good.

So clearly explained it is almost comprehensible for laymen like me. Thank you so much!!

First, if one galaxy is twice as far as another, why do you think it is moving faster, second the pulsating star may be so far away that the luminosity may be far greater and go through less particles. The remarks and equations are just theory. How do you prove a star is x number of light years away? So, what if light travels at a different speed in different parts of the universe?

It's inversion physics chat that is needed in this video... (The video's 'conventional wisdom' premises are flawed, and Mary Fowler's GEOPHYSICS PREM chart offers insight about this paradox-problem)...

"Crisis" lol... makes it sound as if it matters one way or the other

The galaxies on the universal edge are obviously less bound by descreasing density / gravity so an acceleration would be naturally occurring. In our understanding we could safely make that hypothesis.

The issue is the Doppler effect used to calculate red shift. The electric universe makes more sense. Brush up on that theory

What if the observable universe is spinning like and galaxy But on a much greater scale imaginal. Like are stars spin around in the Milky way. But In the higher power Galaxy's would be spinning around a humongous black hole?

Exciting time for astronomers 🙏

The red shift is due to the age of the light, not the distance / velocity of the source.

What we previously thought about the functioning of our universe does not seem to be confirmed in any way. Where we thought the Big Bang expansion (out of a singularity) began, we are now discovering a completely different pattern. It doesn't seem to be a case of a starting explosion but rather a cyclical self-renewal of our cosmos, so to speak from one generation of the universe to another, a kind of passing on of the physical laws under quantum mechanical processes. We cannot explore the universe with precise chronological information, since the real beginning probably dates back several (constantly self-renewing) universe cycles and cannot be grasped due to the enormous "time shifts". With our (limited) human consciousness we probably won't be able to really bring light into the great darkness, we'll simply be overwhelmed... In summary: Determining the age of the universe from the beginning seems impossible; in any case, it is much further back than around 13 billion years, probably a multiple of this estimate. There was no Big Bang during a transition from a previous universe to our current universe. We also don't know how often this process was repeated. The expansion and contraction of the cosmos remains a certain mystery; it´s probably a cyclical process that could be described as a primal cosmic force. So we have to be patient in order to correctly understand and interpret these extremely complicated and varied processes of the concept of our entire universe. At this moment we know perhaps 1 to 10% (?) of the whole...

@thomaswayneward

6 күн бұрын

This is not a different pattern.

The fact we know the expansion is accelerating is amazing.

I've been saying since my youth that it's silly to imagine that the speed of light is constant. We already know that time as we experience it is relative depending on mass and acceleration. Everything we know is really just based on accurate measurements within our solar system and local bubble. I'm pretty sure that we exist in a multidimensional universe where, as 3D creatures, all we can see are spheroids everywhere.

Serious question guys : as the universe seems to behaves like a fluid where matter flows under gravity and magnetism and who knows what else, what does it mean to measure a distance away from us? Wouldn't it make sense to monitor distances to identify currents. And then update the monitored distance, since it's relative speed has an influence on what we measure. Maybe the CMB allows us to compute an extension rate that is due to an original event like a big bang, and maybe the computed value through method one just happens to sample objects in some current directed away from us, so that the extension rate computed this way would appear larger, because these sample points happen to be speeding away from us in an expending universe after some event. Does it make any sense that distances should be monitored and understood as ever-changing values as we're a particles (our sun) aggregated to a clot of matter (the milky way) and we're looking at other particles (supernovae and pulsating stars) attached to their clot of matter (other goalies), all pretty much flowing. Sorry for the poorly expressed ideas, it's probably cause I have no clear idea of what could be out there 😂 obviously! Thanks for the time if you read or respond.

@pooritech

5 күн бұрын

Maybe I am just asking if the Doppler effect is being accounted for which I would feel silly about! Thx again

What is the universe expanding into ???

Our moon is the same distance from us as always. So is our sister planets. So local expansion, if any, is all that concerns me.

@user-xb4kq8oo1y

16 күн бұрын

I agree. Unless there is something headed towards us this kind of exploration likens itself to shooting at a moving humvee to see what happens 😂. 🤔 uh oh running will not help 😊

This universe will come in contact with other expanding universes expanding as we live in a multiverse

There is no crisis, it’s natural. So it’s doing what it’s supposed to do. We just get scared when we don’t know what’s going on.

Another example of the saying, "Nothing changes more than the past!"

Ha ha,good one. Too technical for me but interesting to watch. Thank you.

What law dicates that a star pulsates at a rate proportional to its brightness?

@rb368370

26 күн бұрын

Good question. Money would be better spent improving agriculture in poor countries.

@clarencegreen3071

25 күн бұрын

@@rb368370 I'm still looking for a university that offers a program in the applications of cosmology. Put differently, what is the practical benefit of all this cosmology stuff? --Old physicist

@colincampbell767

11 күн бұрын

@@rb368370 Research into 'pure science' is actually an investment in the future. All of our advanced technology is based on research conducted decades to centuries ago.

New Physics is the best hope to overcome not only the Big Bang puzzle, but a lot more issues haunting our starting principles. A clean slate start can be made by the "Novel quantitative push gravity/field theory poised for verification"

Miss you dearly Mr. Hawking. 🌏

Realy I like this video so so much

i aint see red and green dots at 15:00

I Think that there is ONE endless infinite universe, in which all galaxies with a centred black hole are moving by the red and the blue. the red is c1 and the blue is c2 from E=MC2. There is a speed of light, which is limited and therefore prsent by two borders. (red and blue). The speed of light has a centre by a "horizontal" wave of e-volution Inisde this centre there is a vertical line by the amplitudes of in-volution. The in-volution comes back to the tinniest point of zero. Now there must be a relationships between the speed of light and the smallest black hole known. I think this idea can help to find the answers longing for.

The problem is that astronomers accept some preposterous assumptions, including: Isotropy and Homogeneity. These are NOT FACTS, but only simplifications to ease calculational labor. These introduce the UNREALISTIC concepts such as "Age of the Universe" as if there were a single coordinate frame in which all time can be measured. In reality, each particle has its OWN trajectory and hence its own proper time. Thus, the "Age of the Universe" depends upon which path a given particle has taken. Expecting vastly different methods of measurement to give the SAME answer is naive, to say the least. "Reality is ALWAYS more complex than you imagine; it is hyper-complex and chaotic, and can never be accurately described by mathematical models beyond a certain level."

If the Universe is expending too fast, will it explosion and die? And I want to believe there is another Life somewhere in the Universe if it's expending in every time. 😮😊