Cool Worlds
Cool WorldsDid astronomers just prove dark energy is wrong? Some breaking news this week that I couldn’t resist covering on here…
Written, presented & edited by Prof. David Kipping.
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Check out Ryan Ridden’s video at https://youtu.be/YhlPDvAdSMw
REFERENCES
► Seifert et al. 2024, “Supernovae evidence for foundational change to cosmological models”, MNRAS Letters, 537, L55: https://www.arxiv.org/abs/2412.15143
MUSIC
Licensed by SoundStripe.com (SS) [shorturl.at/ptBHI], Artlist.io, via CC Attribution License (https://creativecommons.org/licenses/by/4.0/) or with permission from the artist.
0:00 Falls – Life in Binary
4:55 Hill – There Is But One Good
CHAPTERS
0:00 Prologue
0:39 Evidence for Dark Energy
2:50 Timescapes
4:53 Testing Timescapes
6:07 Is Dark Energy Cooked?
7:15 Credits
#DarkEnergy #Timescapes #CoolWorlds
source
44 Comments
@RyanRidden
02/18/2025 - 2:03 PMFantastic video and thanks for the shout out! Cosmology is going to be an exciting field over the next few years with all the new data that is coming.
@metaparcel
02/18/2025 - 2:03 PM😅cope
@chrisleblanc581
02/18/2025 - 2:03 PMLet me save all some time. No. They didn’t.
@luiscabral4852
02/18/2025 - 2:03 PMBut how do explain galaxies that disappear. For example, if a galaxy is moving away from us faster than light we stop seeing it. How can they explain that, with time scapes?
@saladin5593
02/18/2025 - 2:03 PMThe universe is expanding altogether may be folding on itself like a scroll or will in the future
@youerny
02/18/2025 - 2:03 PMAlways thought dark energy was the new ether of the XXI. A new model that solves the issue with the constraint of GR and without introducing a huge amount of “magic unknown “ is definitely compelling
@DavidAlsberge
02/18/2025 - 2:03 PMOpinion – what they are measuring is the inertia of 0-dimensional spin.
@electriceyeball
02/18/2025 - 2:03 PMOf course its wrong. It was always wrong
@Dick_Gozinya
02/18/2025 - 2:03 PMDark energy is an illusion. The expansion of the universe is a game that plays us.
@FoxyCAMTV
02/18/2025 - 2:03 PMSo in the end common sense wins….Heavens are an illusion.
@WhyInnovate
02/18/2025 - 2:03 PMIn government when there is unaccounted for money, I will call it dark money, it is just hidden and haven detected it yet!
@Reformsqua
02/18/2025 - 2:03 PMIts been proved wrong several times. I don't understand why scientists all proclaim weak or untestable models as fact. The enthusiast public binges on this stuff and think they've got everything all figured out
@vexxshades2004
02/18/2025 - 2:03 PMI think its cool that science is honor its pagan roots by creating new pagan gods to describe phenomenon. If our good lord Einstein requires it, we shall create as many new gods as neccesary! Long live science! All glory to science!
@SlurpGoblin
02/18/2025 - 2:03 PMSmall correction: The “scientific method” self corrects. Unfortunately, most of our scientific establishment is much more biased by funding and groupthink when compared to astrophysics. Pseudoscience is widespread with deep pockets. The scientific method is our candle in the dark.
@lorenzophalaRSA
02/18/2025 - 2:03 PMNow do dark matter
@ENDDOGMA
02/18/2025 - 2:03 PMEven when science is out in left field it self corrects? I suspect a lot of folks like Eric Weinstein may take issue with that rather dogmatic assumption, it almost has a religious fervor associated w/ it. The most obvious example has to do with UFO/UAPS…is SETI our best effort to discover life or like Neil Tyson is it simply a defence of the status-quo, for the wannabe Nobel winners. I would argue that humans pervert everything they touch and science is no exception. The rigours of double blind trials and other methodologies employed is not the problem. Rather its the questions posed and assumptions made at its core , possibly driving deep thinkers out like Hugh Everett . This results in attacks on creative thinkers much like Copernicus or Galileo, or the countless people we will never hear from.
@AnotherWasted1
02/18/2025 - 2:03 PMScience self corrects, but politicians and publishers with agendas control what can be published, and what gets published by what controlling what gets paid.
Science is fine; it's the system science gets done in that holds it back; way back.
@AnotherWasted1
02/18/2025 - 2:03 PMScientists do challenge their idea, often; it's just that legacy media, and scientists that don't like the challenge, look the other way, or dismiss it with no reason beyond their portrayed superior attitude.
@chrisharris1522
02/18/2025 - 2:03 PMYou don't "prove" anything in science, you fail to "disprove" it
@AndreaOwnn
02/18/2025 - 2:03 PMOh you mean the thing that can’t be seen, can’t be tested, and has never been proven to exist besides its necessity to make the maths work… really isn’t real. How shocking.
@maftis51
02/18/2025 - 2:03 PMGreat video, congratulations … the mystery of dark matter has already been solved …This other video teaches new physics, hidden variables to study gravity, a demonstration of the non-existence of dark matter
@steved2947
02/18/2025 - 2:03 PMIt makes sense, like people moving from villages to cities, galaxies are moving to form huge cosmic cities .
@thecaneater
02/18/2025 - 2:03 PMDark energy and dark matter are just the modern era of the Aether.
@DaesDroolMoes
02/18/2025 - 2:03 PMBuT tHe ScIeNtIsTs
Shut
@Mursici
02/18/2025 - 2:03 PMI asked about Timescapes model vs Lambda CDM at a new Scientist event ( Inside the subatomic universe) in London in January 2025 . The panel ( Harry Cliff, Henrique Araujo, Alexander Booth, Martin David) did not knew about…
Really curious to see how the theory holds as new data is collected/ analysed , but it was appalling to me that they are unaware of the Timescapes model and the predictions it generated so far.
@Tranqui___lita
02/18/2025 - 2:03 PMI call ot "Pater"
@bestfootfoward8024
02/18/2025 - 2:03 PMWhen are you going to admit you don't know sh1t about sh1t, and quit pushing your fantasies as facts on the general public? What's got me so upset? Betelgeuse! All this talk about it's impending doom with all the wonderful images in every video with no disclaimers of CGI. At 650 million light-years no matter how "big" it is, it's angular size can't be more than a single pixel, anything else must be an artifact of the instrument. I an NOT a mathematician but I can imagine, if the narrow "vee" going from earth to the edges of Betelgeuse at its equator passed through a Quarter sitting on the moon, it would be smaller than Washingtons nostril. Gimme a break!
@Cook2430
02/18/2025 - 2:03 PMElectric universe.
@Gamut9
02/18/2025 - 2:03 PMHumans have already killed the globe and now they r looking for something more tricky, the extra terrestrial. U will discover balls in the end. Its of no use sitting at a place like a lame duck and keep talking about that infinite ocean …u need to travel and by the time u start travelling at speeds higher than the speed of light, u will confront million other problems. So keep assuming and keep correcting with a big round in the end. The fabric of the universe is beyond the scope of humans, its made that way. Physics didnt make the universe. If u dont know who made it or how to travel to andromeda in one generation, then its futile assuming or making things up
@In20xx
02/18/2025 - 2:03 PM"Stay sober on this." Good advice!
@wednesdayPrepper
02/18/2025 - 2:03 PMgrumpkins and snarks ? 🤔
@Ssxextreme
02/18/2025 - 2:03 PMsometimes i think dark energy* is just inertia of the mass traveling through the space without friction
@jgunther3398
02/18/2025 - 2:03 PMit's like scientists have forgotten dark energy was a place holder, not supposed to be something that exists. now we have an answer, but no, because it's not dark energy…
@andreasfehlau4965
02/18/2025 - 2:03 PM5 dimensionality
@CxRes
02/18/2025 - 2:03 PMI had already demonstrated this to be the case, albeit using toy simulations, way back in 2010 in my Master's thesis https://su.diva-portal.org/smash/get/diva2:346329/FULLTEXT01.pdf at Stockholm University, which was reviewed by a collaborator on the Supernova Cosmology Project. I had also shared the thesis with David Whiltshire in 2011.
@omsingharjit
02/18/2025 - 2:03 PM"Okay, it's possible, but it's not expansion in the traditional sense. Instead, it's the creation of space (void) within existing spacetime. Voids are formed due to the specific arrangement of matter, which creates empty regions in the same amount of spacetime.
On the other hand, when it comes to the expansion of the universe related to dark energy, this is a different phenomenon. In this case, spacetime itself between two or more clusters is newly created, which we refer to as the expansion of spacetime. It's not about space becoming empty due to the concentration of matter; rather, clusters (or any two points, A and B) remain at the same place, but the spacetime between them increases.
I am specifically addressing this aspect—how does the Timescape model explain expansion if it is observed in the first place?
Additionally, why haven't astronomers or physicists accounted for time dilation effects when observing distant objects in the universe? Even though I am not from this field, I initially believed that the effects of time dilation and spacetime density variations along the line of sight (since redshifted light can stretch or compress depending on the density of the spacetime it travels through) must have already been considered in observations a long time ago, even as early as 2016.
@robotaholic
02/18/2025 - 2:03 PMWithout Dark Energy how big is the universe? Does this change the calculated size which WAS like 93 billion light years across. Now it would be smaller possibly
@Mistral434
02/18/2025 - 2:03 PMHalton Arp disproved Dark Energy in the 90s. Where have you people been? Waiting for authority figures to greenlight the idea in the public zeitgeist? Why didn't you just follow the data? Are you guys dumb?
@stevesinger4066
02/18/2025 - 2:03 PMWhat's next on the chopping block, Planck's constant?
Like several commenters have already stated ahead of me & even mentioned in the video, the whole Dark Matter & Dark Energy mindset seemed a bit much. If it was only needed to explain away 5% or 10% of the missing matter or energy required to better model the known Universe's properties, then maybe one could give the scientists & mathematicians a hall pass. But when it started to require 68% or 75% (or larger, depending on whatever the latest papers report) of all matter & energy to be unknown or "dark", then I honestly believed that it was time to go back to the chalkboard & reconsider things. Now, that said, I have always had a problem because we can only see the observable universe so if most – or a decent portion – of the Universe's matter is beyond our ability to observe/measure, we will forever be doomed to really reconcile it all. Maybe we are not expanding as much as has been reported, but if the cosmological redshift is truly still strongest the further away we are from the object, even with corrections to the "redshiftiness" via timescapes, one can only imagine what kind of accelerations/expansions are happening (or more correctly, were happening a long time ago) outside our small sphere of the observable space that surrounds us. Damn you, speed of light!
Instead…
I vote for a deep dive by our favorite youtuber on how these latest time dilation "developments" could also better explain and/or muck up the explanations from the measured antisotropy as seen in the Cosmic Microwave Background (CMB) and the problems it creates when they have already used the CMB antisotropy-ness to help refine our calculations of the age of our wonderful Universe. Would it still considered a flat universe or has a curved Universe re-entered the chat?
If he has already done such a video, please let me know. Thanks!
@evo1ov3
02/18/2025 - 2:03 PMDark Energy? Should have just called it "aether" emanating from the "One." Like the philosophers preceding today's scientists. Did in the Mediterranean for several hundred years. Before "religion" screwed everything up.
@drover7476
02/18/2025 - 2:03 PMThis is absolutely awesome
@Kossimer
02/18/2025 - 2:03 PMSo how does the timescapes model predict what the end of the universe will be like?
@ElevenDimensionalModel
02/18/2025 - 2:03 PMYeah it's wrong. See the Eleven Dimensional Model for a better hypothesis of the universe.
@dka618
02/18/2025 - 2:03 PMgreat capsule, thank you!
no one was really satisfied with the theory of dark energy? then why do so many promote it and pretend it is a hard fact? I wish they would honestly discuss its unlikeliness when they speak about cosmology, but they don't, they are very serious about it.