Daniel Pomarède
@pomarede.bsky.social
Cosmographer at Univ. Paris-Saclay | mapping the Universe | co-discoverer of Laniakea (our home supercluster of galaxies), Hoʻoleilana, and some other (very) large scale structures
📖 https://orcid.org/0000-0003-2038-0488
▶️ https://vimeo.com/pomarede
📖 https://orcid.org/0000-0003-2038-0488
▶️ https://vimeo.com/pomarede
Pinned
Daniel Pomarède
@pomarede.bsky.social
· Nov 16
Martian robot spinning her turret!
A video sequence captured by the Perseverance rover using her Right Mastcam-Z science Camera on Jan. 27, 2024 (Sol 1044). The full sequence, accelerated here, actually took 3 minutes.
Credit images: NASA/JPL-Caltech/ASU
A video sequence captured by the Perseverance rover using her Right Mastcam-Z science Camera on Jan. 27, 2024 (Sol 1044). The full sequence, accelerated here, actually took 3 minutes.
Credit images: NASA/JPL-Caltech/ASU
Reposted by Daniel Pomarède
Cosmography archives
Astronomical Observations relating to the Construction of the Heavens, arranged for the Purpose of a critical Examination, the Result of which appears to throw some new Light upon the Organization of the celestial Bodies. 🧪🔭
by William Herschel (1811)
Astronomical Observations relating to the Construction of the Heavens, arranged for the Purpose of a critical Examination, the Result of which appears to throw some new Light upon the Organization of the celestial Bodies. 🧪🔭
by William Herschel (1811)
January 9, 2026 at 11:59 AM
Cosmography archives
Astronomical Observations relating to the Construction of the Heavens, arranged for the Purpose of a critical Examination, the Result of which appears to throw some new Light upon the Organization of the celestial Bodies. 🧪🔭
by William Herschel (1811)
Astronomical Observations relating to the Construction of the Heavens, arranged for the Purpose of a critical Examination, the Result of which appears to throw some new Light upon the Organization of the celestial Bodies. 🧪🔭
by William Herschel (1811)
Reposted by Daniel Pomarède
I present three maps of Titan: one in visible "true" colors (albedo scaled and gamma corrected), one in enhanced colors (linear albedo scale with a factor of five), and one of the lakes. In this thread, I will briefly describe how the impenetrable haze was bypassed.
January 8, 2026 at 4:21 PM
I present three maps of Titan: one in visible "true" colors (albedo scaled and gamma corrected), one in enhanced colors (linear albedo scale with a factor of five), and one of the lakes. In this thread, I will briefly describe how the impenetrable haze was bypassed.
Reposted by Daniel Pomarède
-7 degrees Fahrenheit in the Uintah Mountains of Utah. It was worth it. Met an elk, and a fox. Found what I came for.
January 10, 2026 at 5:17 AM
-7 degrees Fahrenheit in the Uintah Mountains of Utah. It was worth it. Met an elk, and a fox. Found what I came for.
Reposted by Daniel Pomarède
I am very happy to share that we won the 2025 Buchalter Cosmology Prize with @CburgesCliff and the rest of the gang for our work on “A minimal axio-dilaton dark sector! arxiv.org/abs/2410.11099 Well, they didn’t tell me there was money in this… 💰💰 buchaltercosmologyprize.org
A Minimal Axio-dilaton Dark Sector
In scalar-tensor theories it is the two-derivative sigma-model interactions that like to compete at low energies with the two-derivative interactions of General Relativity (GR) $\unicode{x2014}$ at le...
arxiv.org
January 9, 2026 at 2:03 PM
I am very happy to share that we won the 2025 Buchalter Cosmology Prize with @CburgesCliff and the rest of the gang for our work on “A minimal axio-dilaton dark sector! arxiv.org/abs/2410.11099 Well, they didn’t tell me there was money in this… 💰💰 buchaltercosmologyprize.org
Cosmography archives
Astronomical Observations relating to the Construction of the Heavens, arranged for the Purpose of a critical Examination, the Result of which appears to throw some new Light upon the Organization of the celestial Bodies. 🧪🔭
by William Herschel (1811)
Astronomical Observations relating to the Construction of the Heavens, arranged for the Purpose of a critical Examination, the Result of which appears to throw some new Light upon the Organization of the celestial Bodies. 🧪🔭
by William Herschel (1811)
January 9, 2026 at 11:59 AM
Cosmography archives
Astronomical Observations relating to the Construction of the Heavens, arranged for the Purpose of a critical Examination, the Result of which appears to throw some new Light upon the Organization of the celestial Bodies. 🧪🔭
by William Herschel (1811)
Astronomical Observations relating to the Construction of the Heavens, arranged for the Purpose of a critical Examination, the Result of which appears to throw some new Light upon the Organization of the celestial Bodies. 🧪🔭
by William Herschel (1811)
Reposted by Daniel Pomarède
Toutes nos félicitations à Marta Volonteri, directrice de recherche @iap.fr, médaille d'argent du @cnrs.fr en 2022, qui vient d'être élue membre de l'@academiesciences.bsky.social ! @cnrs-insu.bsky.social @cnrs-paris.bsky.social @sorbonne-universite.fr
www.cnrs.fr/fr/personne/...
www.cnrs.fr/fr/personne/...
January 9, 2026 at 11:03 AM
Toutes nos félicitations à Marta Volonteri, directrice de recherche @iap.fr, médaille d'argent du @cnrs.fr en 2022, qui vient d'être élue membre de l'@academiesciences.bsky.social ! @cnrs-insu.bsky.social @cnrs-paris.bsky.social @sorbonne-universite.fr
www.cnrs.fr/fr/personne/...
www.cnrs.fr/fr/personne/...
Reposted by Daniel Pomarède
Today marks exactly 100 days since I joined @scrippsocean.bsky.social @ucsandiego.bsky.social. It felt like a bit of a celebration to walk on Scripps’ campus today and feel moved by all the incredible science-inspired art works that are like little gems tucked in unexpected places!
January 9, 2026 at 7:49 AM
Today marks exactly 100 days since I joined @scrippsocean.bsky.social @ucsandiego.bsky.social. It felt like a bit of a celebration to walk on Scripps’ campus today and feel moved by all the incredible science-inspired art works that are like little gems tucked in unexpected places!
Reposted by Daniel Pomarède
Disheartening and disappointing #Mars
👇🔴
👇🔴
NASA’s Mars Sample Return mission is dead
Congress backs Trump administration’s efforts to kill project that would ferry martian rocks to Earth 🧪🔭
www.science.org/content/arti... @science.org
Congress backs Trump administration’s efforts to kill project that would ferry martian rocks to Earth 🧪🔭
www.science.org/content/arti... @science.org
NASA’s Mars Sample Return mission is dead
Congress backs Trump administration’s efforts to kill project that would ferry martian rocks to Earth
www.science.org
January 9, 2026 at 6:36 AM
Disheartening and disappointing #Mars
👇🔴
👇🔴
Reposted by Daniel Pomarède
It's Stephen Hawking's birthday. The occasion to share this fantastic video he produced as part of his Genius documentatry series. Hawking elaborates on our place in the Universe, including our membership to the Laniakea supercluster of galaxies that we discovered back in 2014. 🧪🔭
January 8, 2026 at 5:38 PM
It's Stephen Hawking's birthday. The occasion to share this fantastic video he produced as part of his Genius documentatry series. Hawking elaborates on our place in the Universe, including our membership to the Laniakea supercluster of galaxies that we discovered back in 2014. 🧪🔭
Reposted by Daniel Pomarède
I'm choosing to believe this is who runs the SKA Observatory.
January 8, 2026 at 9:30 PM
I'm choosing to believe this is who runs the SKA Observatory.
The SKA Observatory’s growing telescope array in South Africa, SKA-Mid, has achieved “first fringes” using two of its dishes, a milestone that demonstrates it is operating as an interferometer for the first time. 🧪🔭 #SKAO
www.skao.int/en/news/693/...
www.skao.int/en/news/693/...
January 8, 2026 at 8:59 PM
The SKA Observatory’s growing telescope array in South Africa, SKA-Mid, has achieved “first fringes” using two of its dishes, a milestone that demonstrates it is operating as an interferometer for the first time. 🧪🔭 #SKAO
www.skao.int/en/news/693/...
www.skao.int/en/news/693/...
Reposted by Daniel Pomarède
🚨🚀🚨 NEW SPACE CONFERENCE ALERT 🚨🚀🚨
The Planetary Science Community Workshop, organized by @theplanetaryguy.bsky.social & @millionconcepts.com, will be held in Louisville, KY on April 14-16 and is aimed at bringing together academia, industry & gov.
More here: planetaryworkshop.org
The Planetary Science Community Workshop, organized by @theplanetaryguy.bsky.social & @millionconcepts.com, will be held in Louisville, KY on April 14-16 and is aimed at bringing together academia, industry & gov.
More here: planetaryworkshop.org
PSCW 2026
planetaryworkshop.org
January 8, 2026 at 8:16 PM
🚨🚀🚨 NEW SPACE CONFERENCE ALERT 🚨🚀🚨
The Planetary Science Community Workshop, organized by @theplanetaryguy.bsky.social & @millionconcepts.com, will be held in Louisville, KY on April 14-16 and is aimed at bringing together academia, industry & gov.
More here: planetaryworkshop.org
The Planetary Science Community Workshop, organized by @theplanetaryguy.bsky.social & @millionconcepts.com, will be held in Louisville, KY on April 14-16 and is aimed at bringing together academia, industry & gov.
More here: planetaryworkshop.org
It's Stephen Hawking's birthday. The occasion to share this fantastic video he produced as part of his Genius documentatry series. Hawking elaborates on our place in the Universe, including our membership to the Laniakea supercluster of galaxies that we discovered back in 2014. 🧪🔭
January 8, 2026 at 5:38 PM
It's Stephen Hawking's birthday. The occasion to share this fantastic video he produced as part of his Genius documentatry series. Hawking elaborates on our place in the Universe, including our membership to the Laniakea supercluster of galaxies that we discovered back in 2014. 🧪🔭
Reposted by Daniel Pomarède
Today is Stephen Hawking's birthday. His papers are at Cambridge University, where they are recovering data from floppy disks💾
We interviewed Leontien Talboom, who works on that project: https://bit.ly/48OFnk9
📷 The Franklin Institute, courtesy AIP ESVA, PT Collection.
#HistoryofScience #Archives
We interviewed Leontien Talboom, who works on that project: https://bit.ly/48OFnk9
📷 The Franklin Institute, courtesy AIP ESVA, PT Collection.
#HistoryofScience #Archives
January 8, 2026 at 4:15 PM
Today is Stephen Hawking's birthday. His papers are at Cambridge University, where they are recovering data from floppy disks💾
We interviewed Leontien Talboom, who works on that project: https://bit.ly/48OFnk9
📷 The Franklin Institute, courtesy AIP ESVA, PT Collection.
#HistoryofScience #Archives
We interviewed Leontien Talboom, who works on that project: https://bit.ly/48OFnk9
📷 The Franklin Institute, courtesy AIP ESVA, PT Collection.
#HistoryofScience #Archives
Reposted by Daniel Pomarède
In the difficult years ahead, we should remember that the snows of Olympus lie silent beneath the stars, waiting for our grandchildren.
- Arthur C. Clarke
- Arthur C. Clarke
January 8, 2026 at 3:38 PM
In the difficult years ahead, we should remember that the snows of Olympus lie silent beneath the stars, waiting for our grandchildren.
- Arthur C. Clarke
- Arthur C. Clarke
Reposted by Daniel Pomarède
NASA spent years and billions of dollars collecting Martian samples to bring home. But Congress's current proposed budget for the agency would leave them stranded. What's at stake? Take a deep dive with this recent feature:
NASA Found Something on Mars. Now We Might Just Leave It There
NASA spent years and billions of dollars collecting Martian samples to bring home. Now they might be stranded
www.scientificamerican.com
January 7, 2026 at 4:25 PM
NASA spent years and billions of dollars collecting Martian samples to bring home. But Congress's current proposed budget for the agency would leave them stranded. What's at stake? Take a deep dive with this recent feature:
Reposted by Daniel Pomarède
Chang'e 4 deploys Yutu 2 rover - From Thomas Appéré (thomasappere.bsky.social) - https://flic.kr/p/RRUeeJ
January 7, 2026 at 7:00 PM
Chang'e 4 deploys Yutu 2 rover - From Thomas Appéré (thomasappere.bsky.social) - https://flic.kr/p/RRUeeJ
Reposted by Daniel Pomarède
The news is terrible, so here's an animated gif I made showing the motions of the planets of the inner Solar System from near the end of January to near the end of May with one week between frames.
January 7, 2026 at 7:17 PM
The news is terrible, so here's an animated gif I made showing the motions of the planets of the inner Solar System from near the end of January to near the end of May with one week between frames.
Reposted by Daniel Pomarède
Stupid, stupid, stupid. Heartbreaking and maddening, thinking of the wonderful science that will now just sit on Mars, literally gathering dust, for many years. Pathetic politicians with no curiosity or sense of wonder. I hate the world they make us live in and the future they're denying us.
NASA’s Mars Sample Return mission is dead
Congress backs Trump administration’s efforts to kill project that would ferry martian rocks to Earth 🧪🔭
www.science.org/content/arti... @science.org
Congress backs Trump administration’s efforts to kill project that would ferry martian rocks to Earth 🧪🔭
www.science.org/content/arti... @science.org
NASA’s Mars Sample Return mission is dead
Congress backs Trump administration’s efforts to kill project that would ferry martian rocks to Earth
www.science.org
January 7, 2026 at 4:47 PM
Stupid, stupid, stupid. Heartbreaking and maddening, thinking of the wonderful science that will now just sit on Mars, literally gathering dust, for many years. Pathetic politicians with no curiosity or sense of wonder. I hate the world they make us live in and the future they're denying us.
Reposted by Daniel Pomarède
C'est fini pour la mission Mars Sample Return😥
Le Congrès américain a soutenu les efforts de l'administration Trump pour enterrer ce projet.
La sonde développée par l'ESA pour ramener les échantillons martiens pourrait être recyclée pour étudier la géologie martienne.
www.science.org/content/arti...
Le Congrès américain a soutenu les efforts de l'administration Trump pour enterrer ce projet.
La sonde développée par l'ESA pour ramener les échantillons martiens pourrait être recyclée pour étudier la géologie martienne.
www.science.org/content/arti...
NASA’s Mars Sample Return mission is dead
Congress backs Trump administration’s efforts to kill project that would ferry martian rocks to Earth
www.science.org
January 7, 2026 at 2:13 PM
C'est fini pour la mission Mars Sample Return😥
Le Congrès américain a soutenu les efforts de l'administration Trump pour enterrer ce projet.
La sonde développée par l'ESA pour ramener les échantillons martiens pourrait être recyclée pour étudier la géologie martienne.
www.science.org/content/arti...
Le Congrès américain a soutenu les efforts de l'administration Trump pour enterrer ce projet.
La sonde développée par l'ESA pour ramener les échantillons martiens pourrait être recyclée pour étudier la géologie martienne.
www.science.org/content/arti...
Reposted by Daniel Pomarède
Place des Vosges was (even more) beautiful this morning
January 7, 2026 at 1:57 PM
Place des Vosges was (even more) beautiful this morning
NASA’s Mars Sample Return mission is dead
Congress backs Trump administration’s efforts to kill project that would ferry martian rocks to Earth 🧪🔭
www.science.org/content/arti... @science.org
Congress backs Trump administration’s efforts to kill project that would ferry martian rocks to Earth 🧪🔭
www.science.org/content/arti... @science.org
NASA’s Mars Sample Return mission is dead
Congress backs Trump administration’s efforts to kill project that would ferry martian rocks to Earth
www.science.org
January 7, 2026 at 1:28 PM
NASA’s Mars Sample Return mission is dead
Congress backs Trump administration’s efforts to kill project that would ferry martian rocks to Earth 🧪🔭
www.science.org/content/arti... @science.org
Congress backs Trump administration’s efforts to kill project that would ferry martian rocks to Earth 🧪🔭
www.science.org/content/arti... @science.org
Reposted by Daniel Pomarède
Our #MarsExpress has spotted martian winds whipping up sand grains and acting as a cosmic sandblaster, carving our intriguing grooves in the Red Planet's surface.
More info, images and zoom in 👉 www.esa.int/Science_Expl...
🔭 🧪
More info, images and zoom in 👉 www.esa.int/Science_Expl...
🔭 🧪
January 7, 2026 at 10:04 AM
Our #MarsExpress has spotted martian winds whipping up sand grains and acting as a cosmic sandblaster, carving our intriguing grooves in the Red Planet's surface.
More info, images and zoom in 👉 www.esa.int/Science_Expl...
🔭 🧪
More info, images and zoom in 👉 www.esa.int/Science_Expl...
🔭 🧪
Reposted by Daniel Pomarède
Really proud of this work from our small team on the discovery of the first starless galaxy
#astrosci 🔭🧪
science.nasa.gov/missions/hub...
#astrosci 🔭🧪
science.nasa.gov/missions/hub...
NASA's Hubble Examines Cloud-9, First of New Type of Object - NASA Science
A team using Hubble uncovered a new type of astronomical object — a starless, gas-rich, dark-matter cloud, a remnant of early galaxy formation.
science.nasa.gov
January 6, 2026 at 11:57 PM
Really proud of this work from our small team on the discovery of the first starless galaxy
#astrosci 🔭🧪
science.nasa.gov/missions/hub...
#astrosci 🔭🧪
science.nasa.gov/missions/hub...
Reposted by Daniel Pomarède
January 6, 2026 at 10:36 PM