Daniel Pomarède
@DanielPomarede
Cosmographer at University Paris-Saclay | co-discoverer of Laniakea (our home supercluster), Ho'oleilana, and some other (very) large scale structures 🌌 🔭 💻
Discovery alert! A spherical shell-like structure 1 billion light-years in diameter named Ho’oleilana is discovered in the distribution of relatively nearby galaxies. We posit this is the 1st observation of an individual Baryon Acoustic Oscillation (BAO). doi.org/10.3847/1538-4…

🎆 Counting the days until the world premiere of Feux d’artifice on 13 September at the Last Night of the @bbcproms Thrilled to hear it brought to life by the exceptional @BBCSO under the baton of @ElimDroflem in the legendary @RoyalAlbertHall @BBCRadio3
"POGACAR EN DIFFICULTÉ !" ... "Non, c'est une blague" : sacré Jacky Durand 😅 #LesRP #TDF2025
Ideas about digital life, AI, simulation theory, religion & reality expressed through the lens of nostalgia & pop culture these are in order..
Ed Emshwiller cover art for "The Pawns of Null-A" by A. E. van Vogt, 1960
Vera Rubin at Kitt Peak (1984) Credit: NOIRLab noirlab.edu/public/images/…

Valentin Paret-Peintre s'impose au sommet du Mont Ventoux, la première victoire française sur le Tour de France 2025 > l.lequipe.fr/Zt0
In arxiv.org/abs/2502.08385, we simulated Type Ia #supernovae in an analogue of our local large-scale structure. I recently made the #simulations more accessible on zenodo.org/records/156315… with a short visualisation and a notebook: tinyurl.com/5awz7amd. youtube.com/watch?v=qIuH8P…
Sharks vs. the Universe: Just How Old Are Sharks Compared to the Cosmos? lowell.edu/sharks-vs-the-… @LowellObs #SharkWeek
Vera Rubin didn’t just change our understanding of the universe. Her advocacy helped open doors for generations of women in astronomy. Stay inspired👇 carnegiescience.edu/news/10-inspir… #CaptureTheCosmos #ScienceQuotes #StayCurious #MondayMotivation #WomeninSTEM
Hubble Picture of the Week The swirling spiral NGC 3285B on the outskirts of the Hydra I galaxy cluster. It is home of supernova SN 2023xqm, visible here as a blue-ish dot on the left edge of the galaxy’s disc. ESA/Hubble & NASA, RJ Foley (UC Santa Cruz) esahubble.org/images/potw252…

Jess, so unimpressed (as usual) by my latest feature for @skyatnightmag - a look-back at how beautiful Comet Hale-Bopp was - that she'd rather watch squirrels and pigeons messing about on CatsTV than read her dad's work. Thanks J. ;-)
60 years ago, humanity got its first up-close glimpse of Mars. Since then, we’ve watched dust devils dance, rovers roam and helicopters hover. Take a look back at how our view of the Red Planet has evolved: go.nasa.gov/3IqRt8e
Check out the cover of Heavy Metal #2 by BROM @GeraldBrom These will be onsale in comic shops and newsstands soon-available at SDCC --Fans can purchase these at SDCC- Heavy Metal and GenSeven Creations will have a presence at Booth #4804 Lorenzo Sperlonga- Booth 4812 Frank…
Available now in the online shop -- Heavy Metal #1 C Tula Lotay @tulalotayart #taarna #heavymetalmagazine #comics shop.heavymetal.com/products/heavy…
Perseverance at work yesterday. Martian rock looks quite pleased! #pareidolia #Mars July 15, 2025 - Sol 1565 Credits: NASA/JPL-Caltech
Godzilla art by Japanese painter Noriyoshi Ohrai (1935-2015) 🦖 The legendary Japanese illustrator brought epic scale and cinematic depth to the Godzilla franchise through his stunning poster art 🔥
Grant terminations have grabbed the headlines and have seen legal action, but even more damaging to the US research enterprise has been the massive decrease in research grants issued by federal agencies NIH: -57% in the number of awards and -63% in value compared to FY24
10 Years Ago: NASA’s New Horizons Captures Pluto’s Heart Image credit: NASA/Johns Hopkins University Applied Physics Laboratory/Southwest Research Institute/Alex Parker nasa.gov/image-article/…

NASA Research Shows Path Toward Protocells on Titan Cell-like compartments called vesicles could form naturally in the lakes of Saturn’s moon, based on our current knowledge of the moon’s atmosphere and chemistry. ➡️ science.nasa.gov/science-resear… ➡️ doi.org/10.1017/S14735…
