The Indestructible Power Bank: Dark Energy Poseidon Pro Takes Rugged Tech to New Heights
In a world where power banks are often seen as mere accessories, the Dark Energy Poseidon Pro stands out with its extraordinary durability and performance. Designed to withstand extreme conditions, th...
Sometimes a sketch of the larger piece picks off a particular problem without getting too dense. It’s also nice to see some working bits. In context best physics here is basic sampling of current approaches.
Via #CurtJaimungal ‘s place:
#DarkEnergy
#DressCodeViolations
The Best #Physics is Failing Here …
(or alternately Itza hard to renormalize what you don’t know (in a vacuum)). #PeterGabriel wrote a song about this called #InYourEyes. No, really !
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"However, that might not happen. We might search and make no headway in understanding the situation. If that happens, we would need to rethink not just our research, but the study of cosmology itself. We would need to find an entirely new cosmological model, one that works as well as our current one but that also explains this discrepancy. Needless to say, it would be a tall order."
Paper day for least-model-dependent astrophysics! On today's menu: an old-new mathem. robust galaxy clustering, a clever way to reduce large distance-uncertainties from non-redshift probes & our favourite friendly neighbouring cluster, Coma! 
https://arxiv.org/abs/2504.04135
Typical day: I wake up with an idea and next thing I know I spent the whole day applying #infomatics to resolve #darkmatter #darkenergy and the #BigBang (still very much a #research #work in progress but I'm a fan of an #opendoor... https://qnfo.org/releases/2025/Infomatics/Infomatics
DESI delivers a cosmological bombshell
The Dark Energy Spectroscopic Instrument was meant to shed light on dark energy. Instead it has deepened the mystery surrounding the hypothetical substance.
The standard cosmological model (lambda–CDM) contains a "dark energy",
which accelerates the universe expansion, and forms around 70% of the
universe content. In lambda-CDM the dark energy density is constant
(the famous cosmological constant (Lambda) introduced by A. Einstein).
Now, DESI's measurements suggest that the energy density changes with
time (decreases). DESI's result significance is 1.7 standard deviations, and
combined analyses give a global significance of 4.2 standard deviations,
still short of the 5 standard deviations required for claiming discovery.
This would be a huge discovery, and we have no definitive model for an
evolving dark energy
https://physicsworld.com/a/desi-delivers-a-cosmological-bombshell/
@ThreeSigma #StringTheories do and will make testable predictions now and in the future, including for #CMB signature search (right now),#DarkEnergy and #DarkMatter , all well up above Planck. More importantly strings have given us tools that help us think in spacetime topologies that might upset the apple cart.Strings functionally unified quantum mechanics and gravity for the first time ever in one of those. The tools of string theory have wide application in unifying math and physics elsewhere
What Caused the #IceAges? : Medium
The First #BigData Drop From the #Euclid #Space #Telescope Unlocks a ‘#TreasureTrove’ of #Insights on the #Universe’s #Mysteries : Misc
Is #DarkEnergy Getting Weaker? New #Evidence Strengthens the Case. : Quanta Mag
Check our latest #KnowledgeLinks
A Sense of Doubt blog post #3689 - Dark Energy is Even Stranger Than We Thought. https://sensedoubt.blogspot.com/2025/03/a-sense-of-doubt-blog-post-3689-dark.html #science #Space #DarkEnergy #Strange
Here's some DESI news for you!
No, not that kind of Desi, I'm talking about research done by the Dark Energy Spectroscopic Instrument (DESI) 
Report from Science Friday:
https://www.sciencefriday.com/segments/dark-energy-not-constant-desi-data/
"... it appears possible that dark energy—whatever it is—has changed over the lifetime of the universe. In other words, the so-called cosmological constant may not, in fact, be a constant."
Includes audio and transcript.
Black holes, white holes, dark energy. There's a good chance that they're all related, but it's proper mind melting stuff.
The thing is, I do love a good bit of mind melting. It's such an interesting ride.
https://www.eurekalert.org/news-releases/1076680
#sciencenews #blackhole #whitehole #darkenergy #physics
[Zoom on the #CosmicWeb] Have you dived into the deep fields of #Euclid revealed this Wednesday by the @ec_euclid ? Have you navigated between the thousands of #galaxies of different shapes, sizes, colors and masses? So many objects, near and far, fill our #Universe! https://sky.esa.int/esasky/?hide_welcome=true&hide_banner_info=true&hips=DES-DR2+ColorIRG&sci=false&layout=esasky&euclid_image=EDFS
What if their spatial distribution could tell us something about two mysterious components : #DarkMatter and #DarkEnergy? This is the gamble taken by the scientists involved in the Euclid mission. To do so, they've designed some unrivalled #instruments: a camera with great depth of field and high resolution records the variety of shapes and spatial distribution of galaxies, while a #spectrometer coupled with a #photometer can determine the distances and masses of galaxies ...
Alain Blanchard, professor at the University of Toulouse and researcher at IRAP, comments on the consortium's first-ever publication of scientific data: https://www.irap.omp.eu/en/2025/03/euclid-telescope-reports-first-results/
Big step forwards, backwards and/or sideways on the Hubble tension and lamda-cdm, basically the acceleration due to dark energy seems to have been changing over the life of the universe.
https://youtu.be/j6HZaaypoSI?si=x9kyrZwKpyCdFqrx
#beckysmethurst #darkenergy
It's looking more and more as if dark energy, the mysterious force that scientists say is driving the accelerating expansion of the universe, isn't as strong as it once was. But don't resign yourself to the eventual collapse of the cosmos just yet. https://cosmiclog.com/2025/03/20/sky-survey-boosts-the-case-for-dark-energys-downturn/ #DarkEnergy #DESI #Space #Cosmology
BBC News - Dark Energy experiment shakes Einstein's theory of Universe - BBC News
https://www.bbc.co.uk/news/articles/c4geldjjge0o
#DarkEnergy #DarkEnergySpectroscopicInstrument #DESI
#DarkEnergy weakening? Must be because certain Death Eaters have sucked up all the darkness of the #Universe ...
serious #science though, coming from #Euclid mission and #supernova measurements:
https://www.theguardian.com/science/2025/mar/19/dark-energy-mysterious-cosmic-force-weakening-universe-expansion #cosmology
