#Laniakea

Daniel Pomarèdepomarede
2025-12-08

Wow 98,000 peculiar velocities

The DESI DR1 Peculiar Velocity Survey: Fundamental Plane Catalogue
by C.E. Ross and co-authors
arxiv.org/abs/2512.03226

For comparison: the Great Attractor was discovered with 400 PVs, Laniakea with 8000 PVs, South Pole Wall with 18,000 PVs

This is Figure 15 of the paper, a Mollweide projection of the distribution of the DESI DR1 Fundamental Plane sample (blue) in Right Ascension and Declination compared to the Cosmic Flows 4 catalogue (Tully et al., 2023, black) and the DESI EDR sample (Said et al., 2024, orange).
Adriana Nadrianan
2025-12-03

Hélène Courtois explique dans ce podcast radiofrance.fr/franceculture/p la découverte de , la cartographie de l'univers et met à disposition cette vidéo époustouflante pour comprendre ce qui nous entoure.
youtu.be/rENyyRwxpHo?si=ohhB4g

Daniel Pomarèdepomarede
2025-11-07

in the

Revealing Hidden Cosmic Flows through the Zone of Avoidance with Deep Learning

by Alexandra Dupuy and co-authors
arxiv.org/abs/2511.03919

3D visualization of the mean density and peculiar velocity fields in supergalactic coordinates. The isosurfaces represent the mean density field across 1,000 realizations, with three levels highlighting different density thresholds. Streamlines depict the mean peculiar velocity field, also averaged over 1,000 realizations. Tiny purple spheres mark the positions of Great Attractor (GA) candidates. Tiny grey spheres indicate the positions of streamline endpoints that were not identified as GA, where the streamlines terminated at the box limits. The orientation and scale of the visualization are shown by the SGX, SGY, and SGZ axes, represented by red, green, and blue arrows at the observer’s position (the cube center), each with a length of 10 Mpc/h.
2025-09-21

Ja, heute ist fung...Moment! Bevor es ans Kochen und Essen geht, gibt es heute 1 andere Mission: Und um den schlechten Knüttelversen treu zu bleiben: sunday morning - drum recording.
Auch wenn die Banner auf #Nosturaack deuten, lassen wir den Schwarzmetal heute zu Hause. Die Aufnahmen gelten dem ersten Album meines Doom #Rock -Projekts #laniakea .
#music
#drums

Schlagzeug aus der Vogelperspektive. Im Vordergrund Overheadmikrofone.Schlagzeug von vorne. Im Hintergrund Verstärker.Schlagzeug von hinten. Im Hintergrund 1 gemütlich-mülliger Proberaum mit der Flagge von #Schwerin.
Benjamin Carr, Ph.D. 👨🏻‍💻🧬BenjaminHCCarr@hachyderm.io
2025-09-15

Our #Galaxy Appears To Be Part Of A Structure So Large It Challenges Current Models Of #Cosmology
As we study the universe more, we have found ourselves to be part of much larger structures, formed by gravitational interactions.
Local Group is on the outer edge of the Virgo Supercluster, which is itself part of a giant basin known as #Laniakea. According to the new study, Laniakea too resides within a larger "basin of attraction" (BoA), potentially 10 times its volume.
iflscience.com/our-galaxy-appe

Daniel Pomarèdepomarede
2025-09-03

🎂 OTD 2014: publication of the discovery of Laniakea

"A map of the local Universe has enabled researchers to find the boundaries of Earth's home supercluster, which they name Laniakea."

nature.com/articles/nature13674

A screenshot of Nature's frontpage with headline reading "Laniakea, a supercluster to call home"
Knowledge Zonekzoneind@mstdn.social
2025-08-15

#KnowledgeBit: #Laniakea is the name of the supercluster of galaxies that contains our Milky Way galaxy. It's a vast structure, over 100 times larger than the previously defined supercluster.

In Hawaiian, "Laniakea" means "immeasurable heaven".

knowledgezone.co.in/kbits/689e

Daniel Pomarèdepomarede
2025-01-14

Vous êtes ici

Conférence croisée art et science avec les artistes Lucien Bitaux et Gladys Bourdon, demain à la Comédie de Reims

5 thématiques au programme: Origine, Perception, Cartographie, Mouvements, Infinis...

☑️ lacomediedereims.fr/saison-24-
☑️ reims.fr/la-culture-a-reims/la

Le flyer d'une conférence ayant pour titre "Vous êtes ici". L'image d'arrière plan est une visualisation de Laniakea, le superamas de galaxies auquel appartient notre galaxie la Voie Lactée, dont la localisation est indiquée par un point rouge.
Knowledge Zonekzoneind@mstdn.social
2024-12-31

#DidYouKnow: A #Supercluster is a large group of smaller galaxy clusters or galaxy groups; they are among the largest known structures in the universe.

The #MilkyWay is part of the Local Group galaxy group (which contains more than 54 galaxies), which in turn is part of the Virgo Supercluster, which is part of the #Laniakea Supercluster.

The number of superclusters in the observable universe is estimated to be 10 million.

knowledgezone.co.in/kbits/63ac

Louis Marmet has movedredshiftdrift@astrodon.social
2024-12-24

#Laniakea
Poster ordered for my nephew's birthday gift! The beautiful Laniakea supercluster.

Thanks to the hard work of @pomarede

Laniakea Supercluster Infographic Poster

From Space and Astronomy collection on Kurzgesagt.org
https://shop-us.kurzgesagt.org/collections/space
2024-11-22

Don't call it crisis, call it opportunity! Here is the December edition of the (German-speaking) science magazine "bild der wissenschaft" with a cover story about the challenges of our current #cosmology model: wissenschaft.de/bdw-hefte-spec
...including a one-page interview with me on our community paper!
Check it out, it's a great read!! 🤩

#Science #Outreach #Laniakea #BigRing #CosmologicalPrinicple

Daniel Pomarèdepomarede
2024-11-18

@LeeGP thanks for your interest Lee! You can click on for more related stuff. Cheers, Daniel

Daniel Pomarèdepomarede
2024-11-18

We Are Here

a beautiful visualization of Laniakea, our Home supercluster of galaxies, produced by Félix Pharand-Deschênes

A rendering of the three-dimensional envelope delineating the basin of attraction inside which our galaxy the Milky Way is located. The envelope is rendered with a semi-transparent blueish surface inside which are displayed thousands of very thin flowlines rendered in gold color, that are seen converging onto a unique attractor. A particular spot in the periphery of this object is pinpointed with a label that reads "WE ARE HERE". The scene is rendered against a colorful background image of a numerical simulation of the cosmic web, made of filaments, voids and knots, typical of the distribution of matter on cosmological scales. This visualization is entitled "The Laniakea Supercluster" and a text reads "Among the largest known structures in the Universe, superclusters are large groups of smaller galaxy clusters. Our galaxy, the Milky Way, is part of the Local Group, which itself is part of the Virgo Supercluster, which in turn belongs to the Laniakea Supercluster. The Laniakea Supercluster extends more than 500 million light-years and contains the mass of hundred million billion stars, grouped in over 100,000 large galaxies."
Daniel Pomarèdepomarede
2024-11-14

Laniakea, our Home supercluster of galaxies, makes the cover of Nature

Cover art: Mark A. Garlick / source: Daniel Pomarède.
nature.com/nature/volumes/513/
nature.com/articles/nature13674

2024-11-02

Via Lattea è parte di un super ammasso di galassie. Laniakea non basta più, la nostra galassia è parte di ‘qualcosa’ di molto più grande. Un nuovo studio suggerisce che Laniakea, il nostro 'continente galattico' non è in realtà altro che un'appendice della concentrazione di Shapley, una struttura dieci volte più grande
Finora erano i confini di Laniakea, il nostro enorme “continente galattico“...

#concentrazionediShapley #laniakea #SuperammassoPerseoPesci #VuotodiBoötes

scienzamagia.eu/scienza-tecnol

Laikanea super ammasso cosmico
Daniel Pomarèdepomarede
2024-10-22

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