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Astronomers have two main ways to calculate how fast the universe is expanding. Unfortunately, they don’t agree with one another. The JWST was supposed to help solve this discrepancy, known as “The Hubble Tension” or “The Crisis in Cosmology”. It may just have made it worse.
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Sources: https://docs.google.com/document/u/1/d/e/2PACX-1vQHt6_TV3_WJSElsr1o9Fi87XdqMcEl4hn_XwHwaB1OTOFT8s-mlHbIESd8TOULbLbyG_xjFrysU2oQ/pub
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36 Comments
@SciShow
03/02/2025 - 12:16 PMVisit https://brilliant.org/scishow/ to get started learning STEM for free. The first 200 people will get 20% off their annual premium subscription and a 30-day free trial.
@SubTroppo
03/02/2025 - 12:16 PMAssumptions – equate with disfunction in my mind; I would like to know what is known if you put aside the long-held assumptions and what big ideas have little or no basis as a result.
@jbrownjetmech-4783
03/02/2025 - 12:16 PMEither waste 10 plus minutes watching the near useless video or use 2 minutes reading the comments.
@turbo_brian
03/02/2025 - 12:16 PMAn engineer's perspective: you'll never be able to solve for h0 until you figure out the mechanism driving the expansion in the first place. Until then your error bars are meaningless.
@patrickfarrell7963
03/02/2025 - 12:16 PMBecause of gravitational fields all parts of our universe are separating from each other at different constants of speed. Both values are right based upon the data observed and both values are wrong based upon the data observed when compared with other data. There's more important questions to answer than how old the universe is. A good question is calculating Jupiter's effects in our solar system in relation to its adjustments during its current phase-in cycle and how we need to prepare for it as a planet for the next 400 years. If and when we gain the opportunity to travel very far very quickly then the two data sets do need to be stress test but only between point a and point b and not a generalized concept of universal age aka travel time, supplies and human effectiveness in the face of travel using the more accurate measure system. We are getting closer to traveling within our local planets logically for resource gathering so we are going to need an accurate system but it doesn't need to know how old the universe is.
And yes, I might be an idiot for quitting at 4 minutes and 28 seconds into the video and writing this but the amount of emotional panic about the age of the universe was bothering me. Enjoy the free comment point for your YouTube channel. I do enjoy your other videos, just not this one
@ARKY-v3x
03/02/2025 - 12:16 PMAs a layman who appreciates tech & space… more exploration and less blowing up things, I've always thought we needed more "eyes" in the heavens…aka local space.
More data in real time, more learning, more correct info.
@patriceferguson7340
03/02/2025 - 12:16 PMThis is why one should never say the science is settled. There is no such thing. It’s not there to agree with our POV. It more often says. You’re not even close kiddos. 😅😅😅
@potencjalnypracownik2966
03/02/2025 - 12:16 PMwhy his voice sounds akin to certain black old man?
@RaySherbourne
03/02/2025 - 12:16 PMThe universe took those mushrooms in the intro animation. Mind expansion. Well universe expansion.
@christhemathews
03/02/2025 - 12:16 PMScientists today care less about facts and data and more about things fitting their preconceptions of how the universe SHOULD work. That's why we've been stuck in quantum gravity and string theory for decades with nothing to show for it.
@cedricpod
03/02/2025 - 12:16 PM❤❤❤❤❤❤❤❤ how is it a crisis if it creates more funding for lifetime physicists
@jamesmacdonald5556
03/02/2025 - 12:16 PMHubble found the red shift but never believed the universe was expanding. No wonder there's a crisis in cosmology.
@jeremythornton433
03/02/2025 - 12:16 PMIt's actually quite simple. There are no constants.
@CarlosF-u3y
03/02/2025 - 12:16 PMThey called me madman when I i suggested this back in grad school (before shifting to AI and leaving academia). Really excited for the upcoming developments, one step closer towards a better understanding of the Universe
@davidmcivor2761
03/02/2025 - 12:16 PMSo basically we just make it up as we go along because we know very little about
@AllenStenhaus
03/02/2025 - 12:16 PMWhy do we assume the universe is expanding uniformly everywhere? Is it at all possible varied expansion rates occur in different parts of the universe? Sure, the simpler solution is we are not measuring correctly, but it's just as possible the expansion is not uniform in the same way a supernova is not perfectly uniform.
Scale those imperfections up on a universal scale, and that alone explains everything.
Sure, I could be wrong, but it concerns me nobody is asking if maybe the scientist's different measurements are actually correct and it's the universe that does not work as we once thought.
@vast634
03/02/2025 - 12:16 PMJust invent a Dark Hubble Constant with several dimensions and be done with.
@digital--hazard1905
03/02/2025 - 12:16 PMI would think on such a scale that the rate of expansion would be dynamic depending on stellar distribution, through calculating that would require a huge data set.
@jeffreyluciana8711
03/02/2025 - 12:16 PMBREAKTHROUGH!!! Another breakthrough!!!! No way!!!!
@joerudnik9290
03/02/2025 - 12:16 PMNot a crisis, a dispute.🙄🙄🙄😬😉🤪
@notablediscomfort
03/02/2025 - 12:16 PMI bet the signals are just contaminated by the materials the telescopes are made of. Two similar sounds will muddy each other. Why wouldn't that happen some with electromagnetic radiation?
@DavidBrown-om8cv
03/02/2025 - 12:16 PM"… brand new physics at work …" Milgrom's MOND makes many successful predictions. Google "pavel kroupa dark matter". If gravitational energy is conserved, then MOND inertia might be what physicists do not yet understand. If gravitational energy is not conserved, then the monster group and the 6 pariah groups might control a cosmological automaton for a 72-dimensional, finite multiverse in which all the alternate universes are located on the 71-dimensional boundary of the multiverse. Google "milgrom koide lestone".
@ineeddaname2
03/02/2025 - 12:16 PMSophons! It's because of the sophons!
@usptact
03/02/2025 - 12:16 PMMy camp has a value for the Hubble constant equal exactly to 42.
@waynehampton7564
03/02/2025 - 12:16 PM+/- 10. Problem solved.
@hydrochlorideDefence
03/02/2025 - 12:16 PM@Aarkwrite
03/02/2025 - 12:16 PMIt’s because the simulation is breaking down 16//16//16
/jk
@ComeonmenID10T
03/02/2025 - 12:16 PMWhat is the Importance / Significance of knowing how fast or slow the Universe expands ?? we will never reach the "Border" of it anyways, visually or physically !
@wrailee
03/02/2025 - 12:16 PMCould be our universe is just staring at a reflection inside an infinitesimal black hole.
@Heronymus.OmDraco
03/02/2025 - 12:16 PMWe, and our universe, are full of more than dark matter.. They're full of themselves, and quite a bit more. 😄 Something stinks.
@geoff2027
03/02/2025 - 12:16 PMI wonder if differing draw points for the various Superclusters has any measurable impact.
@the_hanged_clown
03/02/2025 - 12:16 PMso like, is it the distance which increases, or the medium? there is a medium, right?
@biomechanique6874
03/02/2025 - 12:16 PMThe crisis is merely an exposure of dummy scientists not being able to figure out the basics.
The cosmos itself is fine.
@MageSkeleton
03/02/2025 - 12:16 PMi keep hoping to hear "Marioplex" or "Minecraftplex" as somehow they are numbers, more official than "Azillion" but i have a feeling that either they're also not officially recognized or there's nothing large enough in number for them to be used. Because apparently they are larger numbers than a "Megaparsec."
@GingerMafia48
03/02/2025 - 12:16 PMhypothesis: the variations of expansion in the universe may be the remnant of early universe gravitational waves, simply on the wavelength of millions of lightyears – regional differences in expansion may be reflected as peaks and troughs in these large scale graviational waves, hence the periodic change in dark energy/ the expansional rate of the universe
@Damons-Old-Soul
03/02/2025 - 12:16 PMWhy does the distance from us effect the speed something is moving in the expanding universe? It assumes that we are origin point rather than part of the expanding universe. The astronomical direction from us should give a better idea of the expansion of that part of the universe.