#darkenergy — Public Fediverse posts

The Universe may have begun inside a black hole, not a Big Bang

For nearly a century, modern cosmology has treated the Big Bang as the opening moment of everything, the…
#NewsBeep #News #Physics #Astronomy #AU #Australia #BigBangTheory #blackholeuniverse #cosmicinflation #Cosmology #Darkenergy #EnriqueGaztanaga #gravitationalbounce #research #Science #SpaceNews #spatialcurvature #universeorigin #UniversityofPortsmouth
https://www.newsbeep.com/au/670997/

The Universe may have begun inside a black hole, not a Big Bang

For nearly a century, modern cosmology has treated the Big Bang as the opening moment of everything, the…
#NewsBeep #News #Physics #Astronomy #AU #Australia #BigBangTheory #blackholeuniverse #cosmicinflation #Cosmology #Darkenergy #EnriqueGaztanaga #gravitationalbounce #research #Science #SpaceNews #spatialcurvature #universeorigin #UniversityofPortsmouth
https://www.newsbeep.com/au/670997/

https://www.europesays.com/ie/484699/ The Universe may have begun inside a black hole, not a Big Bang #Astronomy #BigBangTheory #BlackHoleUniverse #CosmicInflation #cosmology #DarkEnergy #Éire #EnriqueGaztanaga #GravitationalBounce #IE #Ireland #Physics #Research #Science #SpaceNews #SpatialCurvature #UniverseOrigin #UniversityOfPortsmouth

The universe is significantly older than previously thought, astronomers find

Galaxies spotted by the James Webb Space Telescope have been causing trouble for the standard story of cosmic…
#NewsBeep #News #Physics #Astronomy #CA #Canada #Cosmology #cosmologydebate #DarkEnergy #earlyuniverse #GalaxyFormation #Jameswebbspacetelescope #JWSTgalaxies #Lambda-CDM #RajendraGupta #research #Science #SpaceNews #tiredlighttheory #universeage
https://www.newsbeep.com/ca/665906/

The universe is significantly older than previously thought, astronomers find

Galaxies spotted by the James Webb Space Telescope have been causing trouble for the standard story of cosmic…
#NewsBeep #News #Physics #Astronomy #AU #Australia #Cosmology #cosmologydebate #Darkenergy #EarlyUniverse #galaxyformation #Jameswebbspacetelescope #JWSTgalaxies #Lambda-CDM #RajendraGupta #research #Science #SpaceNews #tiredlighttheory #universeage
https://www.newsbeep.com/au/667117/

The universe is significantly older than previously thought, astronomers find

Galaxies spotted by the James Webb Space Telescope have been causing trouble for the standard story of cosmic…
#NewsBeep #News #Physics #Astronomy #AU #Australia #Cosmology #cosmologydebate #Darkenergy #EarlyUniverse #galaxyformation #Jameswebbspacetelescope #JWSTgalaxies #Lambda-CDM #RajendraGupta #research #Science #SpaceNews #tiredlighttheory #universeage
https://www.newsbeep.com/au/667117/

#KnowledgeByte: Combining the #DarkEnergy Spectroscopic Instrument (#DESI) data with other experiments shows signs that the impact of dark energy may be weakening over time — and the standard model of how the #Universe works may need an update.

https://knowledgezone.co.in/posts/Is-Dark-Energy-Getting-Weaker-67f3f552da225d23b99cb17a

https://news.ucsc.edu/2026/04/desi-complete-3d-map/

#Astronomy #Astrophysics #Astrodon #DESI #DarkEnergy

A DESI Milestone

Yesterday the Open Journal of Astrophysics published a paper by Porredon et al which will feature in the usual Saturday round-up. That paper, which is based on the First Data Release from the Dark Energy Spectroscopic Instrument (DESI) reminded me that I should mention that DESI recently reached an amazing milestone – it has now mapped the positions and redshifts of 47 million galaxies and quasars! There is a full press-release about this achievement here.

Here’s a little video showing how the survey works:

https://www.youtube.com/watch?v=6H3diAK_KIc

There are more videos and other graphics in the press release.

Here’s a nice picture showing a thin slice through the full survey that reveals the characteristic “cosmic web” of the large-scale structure of the Universe in all its glory:

This progress is great, but it really makes me feel old. Forty years ago, in 1986, I had just started my PhD. The state-of-the-art galaxy redshift survey slice then is shown in this plot, from de Lapparent et al 1986 (ApJLett 302, L1), one of the first papers I read as a research student (I got it in 1985 as a preprint), which contains just 1,100 galaxies:

It is worth mentioning that although DESI has now covered its original target area, it will continue until 2028. You can never have too many galaxy redshifts!

#Astronomy #Physics #DarkMatter #DarkEnergy #BlackHoles #Stars #Science #TheoreticalPhysics #Universe #Bounce #Cosmos #Energy #BlackHole
https://futurism.com/space/dark-matter-black-hole-dead-universes

NASA Scientist Investigates the Possibility of a Hidden Fifth Force in Our Solar System

📰 Original title: NASA scientist says a "fifth force" may be hiding in our solar system

🤖 IA: It's not clickbait ✅
👥 Usuarios: It's not clickbait ✅

View full AI summary: https://killbait.com/en/nasa-scientist-investigates-the-possibility-of-a-hidden-fifth-force-in-our-solar-system/?redirpost=cb61d7a8-a8bc-45c6-94f5-3fab35cf134b

#science #darkenergy #fifthforce #nasa

Roman, Hubble’s 300-Megapixel Successor, Will Map the Universe https://petapixel.com/2026/04/22/roman-hubbles-300-megapixel-successor-will-map-the-universe/ #nancygraceromanspacetelescope #spacetelescope #astrophysics #darkenergy #darkmatter #astronomy #telescope #universe #hubble #Space #NGRST #roman #News #NASA

#science #physics #darkmatter #darkenergy

Pretty cool stuff here for anyone interested in cosmology.

https://www.earth.com/news/dark-matter-does-not-exist-the-universe-is-27-billion-years-old-rajendra-gupta-theory/

The flimsy case for evolving dark energy There's been a lot of talk about evolving dark energy, and how DESI data demands it. But the case for this remains somewhat weak, while the true underlying puzzles remain unsolved. bigthink.com/starts-with-... #physics #astro #space #darkenergy

The flimsy case for evolving d...

Cosmological Models Are In Trouble After Recent Studies on Dark Energy - YouTube
https://www.youtube.com/watch?v=NK-4TViTilU

#Astronomy #Cosmology #DarkEnergy #HubbleConstant

New Mathematical Proof for a Universe Powered by Black Holes - YouTube
https://www.youtube.com/watch?v=-osSjxFTMv0

#Astronomy #Cosmology #BlackHoles #DarkEnergy

Introducing NASA's Roman Space Telescope

#DarkEnergy #DarkMatter #Exoplanet #NancyGraceRomanSpaceTelescope

⏩ 1 new picture and 1 new video from NASA (SVS) https://commons.wikimedia.org/wiki/Special:ListFiles?limit=4&user=OptimusPrimeBot&ilshowall=1&offset=20260308125620

The Universe’s Greatest Mystery, a thoughtful dive into the mysterious force driving our cosmos apart. From Newton and Einstein to modern theories breaks down how dark energy reshapes our understanding of cosmos.
https://formulon.blog/2026/02/11/understanding-dark-energy-the-universes-greatest-mystery/

#universe #darkenergy #formulon #cosmology

Core Survey by NASA’s Roman Mission Will Unveil Universe’s Dark Side https://www.nasa.gov/missions/roman-space-telescope/core-survey-by-nasas-roman-mission-will-unveil-universes-dark-side/ #NASA #NancyGraceRomanSpaceTelescope #DarkEnergy #DarkMatter #Galaxies #GoddardSpaceFlightCenter #TheMilkyWay #TheUniverse

🌌🔭 Dark Energy Survey’s grand finale! After 6 years mapping 669 million galaxies, scientists release the most comprehensive analysis yet—twice as tight on cosmic expansion, aligning with the standard ΛCDM model (constant dark energy). A dream come true for cosmology, paving the way for future discoveries! Read more: https://phys.org/news/2026-01-dark-energy-survey-scientists-analysis.html

@goodnews

#GoodNews #DarkEnergy #UniverseExpansion #CosmologyWin #ScienceBreakthrough

🌌🔭 Dark Energy Survey’s grand finale! After 6 years mapping 669 million galaxies, scientists release the most comprehensive analysis yet—twice as tight on cosmic expansion, aligning with the standard ΛCDM model (constant dark energy). A dream come true for cosmology, paving the way for future discoveries! Read more: https://phys.org/news/2026-01-dark-energy-survey-scientists-analysis.html

@goodnews

#GoodNews #DarkEnergy #UniverseExpansion #CosmologyWin #ScienceBreakthrough

🌌🔭 Dark Energy Survey’s grand finale! After 6 years mapping 669 million galaxies, scientists release the most comprehensive analysis yet—twice as tight on cosmic expansion, aligning with the standard ΛCDM model (constant dark energy). A dream come true for cosmology, paving the way for future discoveries! Read more: https://phys.org/news/2026-01-dark-energy-survey-scientists-analysis.html

@goodnews

#GoodNews #DarkEnergy #UniverseExpansion #CosmologyWin #ScienceBreakthrough

🌌🔭 Dark Energy Survey’s grand finale! After 6 years mapping 669 million galaxies, scientists release the most comprehensive analysis yet—twice as tight on cosmic expansion, aligning with the standard ΛCDM model (constant dark energy). A dream come true for cosmology, paving the way for future discoveries! Read more: https://phys.org/news/2026-01-dark-energy-survey-scientists-analysis.html

@goodnews

#GoodNews #DarkEnergy #UniverseExpansion #CosmologyWin #ScienceBreakthrough

While the holy grail of #InhomogeneousCosmology is to explain #DarkEnergy as an epiphenomenon of the cosmologically recent formation epoch of #CosmicVoids and other #LargeScaleStructure, #YonadavBarryGinat and #PedroGFerreira have gone for a more modest goal: keeping the #CosmologicalConstant but tacking on void formation to get a sort-of #BeyondLCDM inhomogeneous model that better matches #DES and #DESI results [1].

#ArXiv_2601_20633
@cosmology #Cosmology #LCDM

[1] https://arxiv.org/abs/2601.20633

String theory finally found a way to describe a universe with dark energy. https://www.quantamagazine.org/string-theory-can-now-describe-a-universe-that-has-dark-energy-20260102/ #stringtheory #darkenergy #cosmology #STEM #scifi

What was it like when #DarkEnergy rose to prominence? : Medium

#AI could be your next line #Manager : Misc

Why #Europa Might Not Have #Life After All : Misc

Latest #KnowledgeLinks

https://knowledgezone.co.in/resources/bookmarks

Dark Energy Survey Year 6 Results - Cosmological Constraints from Galaxy Clustering and Weak Lensing: https://arxiv.org/abs/2601.14559 -> Dark Energy Survey Scientists Release Analysis of All Six Years of Survey Data: https://news.fnal.gov/2026/01/dark-energy-survey-scientists-release-new-analysis-of-how-the-universe-expands / https://noirlab.edu/public/news/noirlab2603/ - four methods for studying #DarkEnergy come together in a single experiment for the first time. Also Dark Energy Survey - DESI-Independent Angular BAO Measurement: https://arxiv.org/abs/2601.14864. And CosmoSlider - An educational tool for cosmology: https://arxiv.org/abs/2601.16919

570-Megapixel Dark Energy Camera Unravels Mysteries of the Dark Universe https://petapixel.com/2026/01/26/570-megapixel-dark-energy-camera-unravels-mysteries-of-the-dark-universe/ #darkenergycamera #570megapixels #astrophysics #darkenergy #darkmatter #astronomy #universe #science #Space #space #News

#Cosmology

Dark Energy Survey releases new analysis of how the universe expands

Data from six-year galaxy mapping project narrow down the possible models for how the universe behaves.

https://news.uchicago.edu/story/dark-energy-survey-releases-new-analysis-how-universe-expands

#DarkEnergy #DES #Astronomy #Astrophysics #Astrodon #science #news #universe

Dark Energy Survey Year Y6 Results Day!

This morning’s arXiv announcement contained a number of papers related to the Dark Energy Survey Y6 analysis. There is also a Zoom webinar later today at 10.30 Central Time (16.30 GMT’; 13.30 in Greeland). Details can be found here.

You can find links to and abstracts of all the papers here, but I thought it would be useful to provide arXiv links to the latest batch here.

• arXiv:2601.14559 Dark Energy Survey Year 6 Results: Cosmological Constraints from Galaxy Clustering and Weak Lensing – this is the key summary paper.
• arXiv:2601.14484 Dark Energy Survey Year 6 Results: MagLim++ Lens Sample Selection and Measurements of Galaxy Clustering
• arXiv:2601.14864 Dark Energy Survey: DESI-Independent Angular BAO Measurement
• arXiv:2601.15175 Dark Energy Survey Year 6 Results: Galaxy-galaxy lensing
• arXiv:2601.14833 Dark Energy Survey Year 6 Results: Magnification modeling and its impact on galaxy clustering and galaxy-galaxy lensing cosmology
• arXiv:2601.14859 Dark Energy Survey Year 6 Results: Weak Lensing and Galaxy Clustering Cosmological Analysis Framework

A number of DES Y6 papers already published – including several in the Open Journal of Astrophysics – are listed here.

I’ll just highlight a couple of points from the first paper listed above, which uses the now standard “3x2pt” analysis, which combines three complementary two-point correlation functions: cosmic shear; galaxy-galaxy lensing and galaxy clustering. The abstract of this paper is as follows:

A notable result is contained in the last sentence. The simplest interpretation of dark energy is that it is a cosmological constant (usually called Λ) which – as explained here – corresponds to a perfect fluid with an equation-of-state p=wρc2 with w=-1. In this case the effective mass density  ρ of the dark energy remains constant as the universe expands. To parametrise departures from this constant behaviour, cosmologists have replaced this form with the form w(a)=w0+wa(1-a) where a(t) is the cosmic scale factor. A cosmological constant Λ would correspond to a point (w0=-1, wa=0) in the plane defined by these parameters, but the only requirement for dark energy to result in cosmic acceleration is that w<-1/3, not that w=-1. Results last year from DESI suggested a value of w0 different from -1, but DES does not.

I thought I’d add one of the cosmological contraint plots:

The results look qualitatively similar to previous plots but the contours have shifted a bit.

#Cosmology #DarkEnergy #DarkEnergySpectroscopicInstrument #DarkEnergySurvey #DES #DESYear6 #DESI

🎉✨Breaking news: String Theory finally manages to describe a universe with dark energy—because regular energy was just too mainstream! 🌌😜 Who knew a cocktail of buzzwords could make theoretical physics sound like a cosmic smoothie? 🚀🥤
https://www.quantamagazine.org/string-theory-can-now-describe-a-universe-that-has-dark-energy-20260114/ #StringTheory #DarkEnergy #TheoreticalPhysics #CosmicSmoothie #ScienceNews #HackerNews #ngated

String Theory Can Now Describe a Universe That Has Dark Energy

https://www.quantamagazine.org/string-theory-can-now-describe-a-universe-that-has-dark-energy-20260114/

#HackerNews #StringTheory #DarkEnergy #QuantumPhysics #UniverseScience #Astrophysics

Ah, string theory! The perpetual *🌀HYPE🌀* machine that keeps on spinning, churning out groundbreaking #news like it's 1999. 🧠💡 Apparently, it's now the answer to everything from your brain's wiring to the mysteries of dark energy, because why not throw in the entire #universe for good measure? 🙄 Bravo, string theorists, for re-inventing the wheel yet again! 👏
https://www.math.columbia.edu/~woit/wordpress/?p=15407 #stringtheory #hype #science #darkenergy #HackerNews #ngated

some crowns are inherited.
this one was welded in fire.

follow @fuckitofc for more.
music darkwave in your head.

EMAIL WITH ATTITUDE.
PURE. SECURE. EXCLUSIVE.
https://fuck.it

#fuckit #edgeofcreation #selfmade #darkenergy #unfuckwithable

Nancy Grace Roman Space Telescope Will Explore Billions of Galaxies With 288MP Camera https://petapixel.com/2025/12/17/nancy-grace-roman-space-telescope-will-explore-billions-of-galaxies-with-288mp-camera/ #nancygraceromanspacetelescope #spacetelescope #milkwaygalaxy #darkenergy #darkmatter #astronomy #blackhole #telescope #science #hubble #Space #roman #space #News #NASA

NASA’s Roman Telescope Will Observe Thousands of Newfound Cosmic Voids https://www.nasa.gov/missions/roman-space-telescope/nasas-roman-telescope-will-observe-thousands-of-newfound-cosmic-voids/ #NASA #NancyGraceRomanSpaceTelescope #DarkEnergy #DarkMatter #GoddardSpaceFlightCenter #TheUniverse

NASA Completes Nancy Grace Roman Space Telescope Construction https://www.nasa.gov/missions/roman-space-telescope/nasa-completes-nancy-grace-roman-space-telescope-construction/ #NASA #NancyGraceRomanSpaceTelescope #DarkEnergy #DarkMatter #Exoplanets #GoddardSpaceFlightCenter #Stars #TheUniverse

Dark Matter in the Centre of our Home Galaxy 
Fermi telescope made clean observation of excess γ-ray emission at the centre of our home galaxy which appeared non-spherical and flattened............
#CTAO #Darkenergy #darkmatter #Darkmatterparticle #DM #FermiLAT #Fermitelescope #GalacticCentreExcess #galaxy #GCE #homegalaxy #milkyway #WIMP
Umesh Prasad

https://www.scientificeuropean.co.uk/sciences/space/dark-matter-in-the-centre-of-our-home-galaxy/

https://www.europesays.com/uk/496795/ Information could be a fundamental part of the universe – and may explain dark energy and dark matter #BlackHoleInformationParadox #DarkEnergy #DarkMatter #Energy #Physics #QuantumMechanics #Science #SpaceAndTime #UK #UnitedKingdom

Information could be a fundamental part of the universe – and may explain dark energy and dark matter

When you buy through links on our articles, Future and its syndication partners may earn a commission. An…
#NewsBeep #News #Physics #blackholeinformationparadox #CA #Canada #DarkEnergy #darkmatter #Energy #QuantumMechanics #Science #spaceandtime
https://www.newsbeep.com/ca/209881/

NASA Roman Core Survey Will Trace Cosmic Expansion Over Time

NASA’s Nancy Grace Roman Space Telescope will be a discovery machine, thanks to its wide field of view…
#NewsBeep #News #Space #DarkEnergy #NancyGraceRomanSpaceTelescope #NeutronStars #Science #stars #Supernovae #TheUniverse #UK #UnitedKingdom
https://www.newsbeep.com/uk/62907/

NASA Roman Core Survey Will Trace Cosmic Expansion Over Time https://www.nasa.gov/missions/roman-space-telescope/nasa-roman-core-survey-will-trace-cosmic-expansion-over-time/ #NASA #NancyGraceRomanSpaceTelescope #DarkEnergy #NeutronStars #Stars #Supernovae #TheUniverse

One Survey by NASA’s Roman Could Unveil 100,000 Cosmic Explosions https://www.nasa.gov/missions/roman-space-telescope/one-survey-by-nasas-roman-could-unveil-100000-cosmic-explosions/ #NASA #NancyGraceRomanSpaceTelescope #Astrophysics #BlackHoles #DarkEnergy #GalaxiesStarsBlackHoles #GalaxiesStarsBlackHolesResearch #GoddardSpaceFlightCenter #ScienceResearch #Stars #Supernovae #TheUniverse

NOIRLab image of the week

A Silhouette Hunts for Dark Energy

Credit: CTIO/NOIRLab/NSF/AURA/O. Bonin/SLAC National Accelerator Laboratory
https://noirlab.edu/public/images/iotw2527a/

#NOIRLab #BlancoTelescope #photography #DarkEnergy #CerroTololo #Chile #Sunset #sunsetphotography #astronomy #astrophysics #astrodon #cosmology

NOIRLab image of the week

A Silhouette Hunts for Dark Energy

Credit: CTIO/NOIRLab/NSF/AURA/O. Bonin/SLAC National Accelerator Laboratory
https://noirlab.edu/public/images/iotw2527a/

#NOIRLab #BlancoTelescope #photography #DarkEnergy #CerroTololo #Chile #Sunset #sunsetphotography #astronomy #astrophysics #astrodon #cosmology

NOIRLab image of the week

A Silhouette Hunts for Dark Energy

Credit: CTIO/NOIRLab/NSF/AURA/O. Bonin/SLAC National Accelerator Laboratory
https://noirlab.edu/public/images/iotw2527a/

#NOIRLab #BlancoTelescope #photography #DarkEnergy #CerroTololo #Chile #Sunset #sunsetphotography #astronomy #astrophysics #astrodon #cosmology

NOIRLab image of the week

A Silhouette Hunts for Dark Energy

Credit: CTIO/NOIRLab/NSF/AURA/O. Bonin/SLAC National Accelerator Laboratory
https://noirlab.edu/public/images/iotw2527a/

#NOIRLab #BlancoTelescope #photography #DarkEnergy #CerroTololo #Chile #Sunset #sunsetphotography #astronomy #astrophysics #astrodon #cosmology

NOIRLab image of the week

A Silhouette Hunts for Dark Energy

Credit: CTIO/NOIRLab/NSF/AURA/O. Bonin/SLAC National Accelerator Laboratory
https://noirlab.edu/public/images/iotw2527a/

#NOIRLab #BlancoTelescope #photography #DarkEnergy #CerroTololo #Chile #Sunset #sunsetphotography #astronomy #astrophysics #astrodon #cosmology

These Are the First Images Captured by the Largest Camera Ever Made https://petapixel.com/2025/06/22/these-are-the-first-images-captured-by-the-largest-camera-ever-made/ #veracrubinobservatory #3200megapixels #observatory #worldrecord #darkenergy #lsstcamera #astronomy #firstlook #telescope #universe #science #galaxy #Space #chile #space #News #lsst #doe #nsf

These Are the First Images Captured by the Largest Camera Ever Made https://petapixel.com/2025/06/22/these-are-the-first-images-captured-by-the-largest-camera-ever-made/ #veracrubinobservatory #3200megapixels #observatory #worldrecord #darkenergy #lsstcamera #astronomy #firstlook #telescope #universe #science #galaxy #Space #chile #space #News #lsst #doe #nsf