#darkenergy — Public Fediverse posts

A catalogue of 3,000 supernovae — the largest ever assembled — is challenging existing theories of dark energy

https://www.universetoday.com/articles/a-new-catalog-of-close-to-3000-supernova-challenges-theories-on-dark-energy

#science #astronomy #darkenergy

A catalogue of 3,000 supernovae — the largest ever assembled — is challenging existing theories of dark energy
https://www.universetoday.com/articles/a-new-catalog-of-close-to-3000-supernova-challenges-theories-on-dark-energy
The most comprehensive catalogue of Type Ia supernovae ever assembled has produced new clues about dark energy, the mysterious force driving the universe's accelerating expansion — and some of those c
#science #astronomy #darkenergy

Help Refine Data from Space Telescopes with Artifact InSPECtor

How do scientists studying space with data from a telescope hundreds of thousands of miles away know that…
#NewsBeep #News #Space #CitizenScience #DarkEnergy #Euclid #NancyGraceRomanSpaceTelescope #Science #UK #UnitedKingdom
https://www.newsbeep.com/uk/768148/

Fortunately we have Doctor Who to save us. 👾

Astrum: *Scientists Say the Universe Could End in 30 Years*

"Scientists are predicting the end of the universe, and it could happen much sooner than we thought. For the first time, scientists have measured how dark energy is behaving right now, in the local universe, by measuring subtle shifts within our own solar system. How long do we actually have left? The answer might surprise you…"

https://youtube.com/watch?v=fPIiJ3iZoJ4

#Science #universe #astronaut #DarkEnergy

Two of the Universe's Great Mysteries May Have Their Own Dimension

https://fed.brid.gy/r/https://www.wired.com/story/dark-energy-matter-may-have-own-dimension/

The Beginnings of Man -Part 1

https://tonyaholisticblog.com/2026/08/31/the-beginnings-of-man-part-1/

Supernovae help astronomers measure how the Universe expands over time

Astronomers have leaned on Type Ia supernovae for decades because these stellar explosions act like mile markers across…
#NewsBeep #News #Science #artificialintelligenceinastronomy #Astronomy #AU #Australia #cosmicexpansion #Cosmology #Darkenergy #GalaxyEvolution #interstellardust #lsst #photometricredshift #research #SpaceNews #supernovacosmology #TypeIasupernovae #VeraRubinObservatory
https://www.newsbeep.com/au/658739/

Supernovae help astronomers measure how the Universe expands over time

Astronomers have leaned on Type Ia supernovae for decades because these stellar explosions act like mile markers across…
#NewsBeep #News #Science #artificialintelligenceinastronomy #Astronomy #AU #Australia #cosmicexpansion #Cosmology #Darkenergy #GalaxyEvolution #interstellardust #lsst #photometricredshift #research #SpaceNews #supernovacosmology #TypeIasupernovae #VeraRubinObservatory
https://www.newsbeep.com/au/658739/

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!

膨張宇宙理論を覆す大発見を目撃する──特集「THE WIRED WORLD IN 2026」

https://web.brid.gy/r/https://wired.jp/article/vol58-upending-the-theories-of-an-expanding-universe/

[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/

Physics Today covers appreciation post

A Rule for the Cosmos (2017)

Feature article by Will J. Percival on Baryon Acoustic Oscillations as a Cosmological Ruler
https://doi.org/10.1063/PT.3.3789

#cosmology #physics #physicstoday #cover #covers #BAO #baryon #acoustic #oscillations #galaxies #darkenergy #acousticwaves #waves #universe #origin #telescopes #leptons #baryons #astronomy #astrophysics #astrodon #science #STEM

With the reveal of the first full-colour images of #ESAEuclid

👉🏻 only 2️⃣ days away

(did we mention that already? 😉 )

if you want to read up on the scientific and technical background of the #Euclid mission, the spacecraft 🛰️ , the instruments 📷 and science 👩🏾‍🔬 , we recommend our #EuclidConsortium website:

👉🏼 https://www.euclid-ec.org

We have an image gallery, technical descriptions, and a blog with background info.

#astrodon #astronomy #science #space #DarkMatter #DarkEnergy #gravity #scicom

Are you interested in working with #ESAEuclid 👨🏿‍🏭 👩🏽‍🔧 👷‍♀️? The #EuclidConsortium and partners always have numerous job openings in #astrophysics, #software, and #datascience, and across various countries. 🔭 👩‍💻 📝

Find them on the #AAS job register:

👉 https://jobregister.aas.org/search/node/Euclid

#ESA #DarkMatter #DarkEnergy #astrodon #science #sciencejobs #space #astronomy

Today, Monday 31 July 2023, is #ESAEuclid's 🛰️ First Light 💡day. Tune in at 14:00 CEST (12:00 UTC) to the

👉 #EuclidConsortium website (https://www.euclid-ec.org/euclid-sees-first-light) or

👉 #ESA's #Euclid site (https://www.esa.int/Science_Exploration/Space_Science/Euclid)

to see - and read about - Euclid's first engineering ⚙️ images 🖼️!

#DarkMatter #DarkEnergy #astrodon #spacedon #astronomy

We would like to welcome our 800th follower 🤸 and again would like to point to:

* Our #EuclidConsortium website at https://www.euclid-ec.org, with primers on the mission, instruments, science, and the Consortium

*#ESA's #Euclid site at https://www.esa.int/Science_Exploration/Space_Science/Euclid, with more background and images.

Background, current developments, soon actual sky observation data! 💫🕳️🌀✨🌙☄️

#astrodon #astronomy #ESAEuclid #DarkEnergy #DarkMatter #cosmology

We would like to welcome our 700th follower 🏃‍♂️ and take the opportunity to point again at:

* The #EuclidConsortium website: https://www.euclid-ec.org

*#ESA's #Euclid site: https://www.esa.int/Science_Exploration/Space_Science/Euclid

Those sites provide an increasing amount of background information, updates, and - at some point not too far in the future - actual sky observation data! 💫🕳️🌀✨🌙☄️

#astrodon #ESAEuclid #DarkEnergy #DarkMatter #cosmology

What is #ESAEuclid? This is how Euclid engineers and scientists describe it:

https://youtube.com/watch?v=Fwalv0fzkNo

(2️⃣ days to 🚀 launch 😬)

#EuclidConsortium #ESA #DarkMatter #DarkEnergy

(Re-post)

Our new #EuclidConsortium website will be our main hub for communicating news & information about the #EuclidMission to the world.

Do you want a primer on the mission? Go to our Mission tab and read about the telescope, instruments, surveys, and simulations.

https://www.euclid-ec.org

#Euclid #ESAEuclid #CosmicMystery #DarkEnergy #DarkMatter

Our new #EuclidConsortium website will be our main hub for communicating news & information about the #EuclidMission to the world.

Do you want a primer on the mission? Go to our Mission tab and read about the telescope, instruments, surveys, and simulations.

https://www.euclid-ec.org

#Euclid #ESAEuclid #CosmicMystery #DarkEnergy #DarkMatter

In July we will launch the #Euclid #spacecraft, but this week we already re-launched our #EuclidConsortium website:

https://www.euclid-ec.org

It has been completely overhauled and now provides up-to-date primers on science, mission information, a Blog, press material, and a growing set of images. Visit us!

#ESAEuclid #EuclidMission #DarkEnergy #DarkMatter

Happy to announce that the website of the #EuclidConsortium (@ec_euclid) has been re-launched with a complete structural, technical, and - most important - content overhaul: https://euclid-ec.org

For everything #EuclidMission #Euclid please have a look, there'll be blog-posts, infos or scientists and press, growing image galleries and so forth.

#ESAEuclid #DarkEnergy #DarkMatter #DarkUniverse #ReLaunchDay

20 days exactly until opening of #Euclid's contractual launch window. 8 days until @ec_euclid annual meeting in Copenhagen. Less than half a year until we'll have science data.

And 1 day until we relaunch the
#EuclidConsortium website!

#Yeah #wow #scary

#ESA #ESAEuclid #EuclidMission #DarkEnergy #DarkMatter

How Much Of The #Universe Can #Humanity Ever See?

https://www.youtube.com/watch?v=eVoh27gJgME&ab_channel=PBSSpaceTime

#PBS #SpaceTime #PBSSpaceTime #TheUniverse #Cosmos #TheCosmos #BigBang #TheBigBang #Expansion #CMB #CosmicMicrowaveBackground #ParticleHorizon #HubbleHorizon #DarkEnergy #MattODowd

How Much Of The #Universe Can #Humanity Ever See?

https://www.youtube.com/watch?v=eVoh27gJgME&ab_channel=PBSSpaceTime

#PBS #SpaceTime #PBSSpaceTime #TheUniverse #Cosmos #TheCosmos #BigBang #TheBigBang #Expansion #CMB #CosmicMicrowaveBackground #ParticleHorizon #HubbleHorizon #DarkEnergy #MattODowd

How Much Of The #Universe Can #Humanity Ever See?

https://www.youtube.com/watch?v=eVoh27gJgME&ab_channel=PBSSpaceTime

#PBS #SpaceTime #PBSSpaceTime #TheUniverse #Cosmos #TheCosmos #BigBang #TheBigBang #Expansion #CMB #CosmicMicrowaveBackground #ParticleHorizon #HubbleHorizon #DarkEnergy #MattODowd

How Much Of The #Universe Can #Humanity Ever See?

https://www.youtube.com/watch?v=eVoh27gJgME&ab_channel=PBSSpaceTime

#PBS #SpaceTime #PBSSpaceTime #TheUniverse #Cosmos #TheCosmos #BigBang #TheBigBang #Expansion #CMB #CosmicMicrowaveBackground #ParticleHorizon #HubbleHorizon #DarkEnergy #MattODowd

How Much Of The #Universe Can #Humanity Ever See?

https://www.youtube.com/watch?v=eVoh27gJgME&ab_channel=PBSSpaceTime

#PBS #SpaceTime #PBSSpaceTime #TheUniverse #Cosmos #TheCosmos #BigBang #TheBigBang #Expansion #CMB #CosmicMicrowaveBackground #ParticleHorizon #HubbleHorizon #DarkEnergy #MattODowd