@pomarede@mastodon.social
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pomarede

@pomarede@mastodon.social

cosmographer at university paris-saclay | mapping the universe | co-discoverer of

#laniakea our home supercluster of galaxies | #dipolerepeller a void contributing to the motion of our galaxy | #coldspotrepeller a void associated to the coldest point of the big bang fossil radiation | #southpolewall a giant galactic filament of the cosmic web | #hooleilana the relic of a baryon acoustic oscillation

https://vimeo.com/pomarede | https://sketchfab.com/pomarede | https://youtube.com/@pomarede

This profile is from a federated server and may be incomplete. Browse more on the original instance.

pomarede, to space
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Nature astro covers appreciation post

Sands of Titan (2015)

https://nature.com/nature/volumes/517/issues/7532

pomarede, to space
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Science Magazine astronomy covers appreciation post

Martian Delta (2021) - Perseverance rover investigates ancient hydrology

https://science.org/toc/science/374/6568

pomarede, to Starwars
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#StarWarsDay #Maythe4thBeWithYou #LegoStarWars

LEGO X-Wing, a thread

  1. LEGO set 7140, 263 pieces, released in 1999, the first one, 25 years ago #LegoStarWars25

#StarWars #lego #xwing

pomarede, to modeltrains
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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).

https://doi.org/10.3847/1538-4357/aceaf3

'oleilana

pomarede, to Astronomy
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Nature Astronomy covers appreciation post

The Cassini mission (2017)

Art by James Tuttle Keane

https://nature.com/natastron/volumes/1/issues/9 @NatureAstronomy

pomarede, to Kurzgesagt
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wow what a fascinating Martian sight, wish there were a dual stereo pair of images to see this one in 3D!

This image was taken by the Left Navigation Camera onboard NASA's Mars rover Curiosity on Sol 4155 (2024-04-14).

Credits: NASA/JPL-Caltech

https://mars.nasa.gov/raw_images/1320755/

#mars #curiosity #rover #space #sand #rocks #wind #MountSharp #GaleCrater #astronomy #astrodon #science #STEM #photography #nasa #JPL #Caltech

pomarede, to space
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Wow check this out: the Martian rover Perseverance made a huge leap forward to reach its Sol 1162 location, right in the middle of Neretva Vallis, in the close vicinity of an island-like mound.
https://science.nasa.gov/mission/mars-2020-perseverance/location-map/

#Perseverance #Mars #Sol1162 #rover #PerseveranceRover #NeretvaVallis #Neretva #river #valley #NeretvaRiver #space #Astrodon #science #map #STEM

pomarede, to Kurzgesagt
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Check out this Martian panorama, captured by Curiosity two days ago, on Sol 4174. It is made of 50 adjacent images, each 1328x1184 pixels. Let's go for some zooms👇

Credits: NASA/JPL-Caltech/MSSS

#Curiosity #Mars #Sol4174 #rover #space #Martian #landscape #panorama #images #photographies #science #STEM #Astrodon

pomarede, to Astronomy
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David Aitoff (1854-1933)

a Russian cartographer, who proposed the modified azimuthal map projection that bears his name: the Aitoff Projection
https://en.wikipedia.org/wiki/Aitoff_projection

This projection is the one we use in our cosmographic maps, as illustrated in the following thread ⤵️

#astronomy #astrophysics #cartography #cartographer #math #mathematics #aitoff #projection #cosmology #universe #galaxies #space #science #research #astrodon #map #maps

pomarede, to random
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A selection of eclipses that made the cover of Nature and Science Magazine

Partial eclipse of the sun, New York, 2 October 1959. The picture was taken over Manhattan

https://www.science.org/toc/science/130/3383

pomarede, to Dragonlance
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in the #arXiv

The Heterogeneous Surface of Asteroid (16) Psyche

by Saverio Cambioni and co-authors
https://arxiv.org/abs/2402.03422

📷 Fig. 5: The lowlands in the Bravo-Golf region (longitudes 15◦W to 60◦E) have a lower thermal inertia than the surrounding highlands.

#asteroid #Psyche #map #mapping #cartography #ALMA #remotesensing #preplanet #planetesimal #metal #metals #astronomy #astrophysics #astrodon #space #science #research

pomarede, to Kurzgesagt
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Wow 300 images captured by Curiosity to build a panoramic survey at her Sol 4175 location, ten days ago. This video show them at a rate of 10/second. It took about 50 minutes for the rover to complete this scan with her left mast camera.

Credit images: NASA/JPL-Caltech/MSSS/fredk

#Curiosity #Mars #Sol4175 #rover #CuriosityRover #space #Martian #landscape #panorama #photography #science #STEM #engineering

video/mp4

pomarede, to Cosmology
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Discovery of the Big Ring, an ultra-large cosmological structure, by Alexia Lopez @morninglopez and her co-authors, further challenges what we understand about the universe.

This finding was announced yesterday at the Winter Meeting of the American Astronomical Society.

✅ AAS 243 Press Conference: https://www.youtube.com/watch?v=86Ps7vE6JHI&t=239s
✅ Research News by UCLan: https://www.uclan.ac.uk/news/big-ring-in-the-sky
✅ The Guardian: https://www.theguardian.com/science/2024/jan/11/newly-discovered-cosmic-megastructure-challenges-theories-of-the-universe
✅ BBC News: https://www.bbc.com/news/science-environment-67950749

pomarede, to Astronomy
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Science Advances astronomy covers appreciation post

Proxima Centauri c (2020)

https://science.org/toc/sciadv/6/3

pomarede, to Astro
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A beautiful interlacing of dunes and rocks for the new Mars Perseverance Raw Image of the Week

This image was acquired on May 17, 2024 (Sol 1152).

Credit: NASA/JPL-Caltech/ASU
https://mars.nasa.gov/mars2020/multimedia/raw-images/ZR0_1152_0769215060_848EBY_N0522638ZCAM09188_1100LMJ

pomarede, to Cosmology
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Looking for a sensational punchline for your research?

The Sun will not disappoint!

https://thesun.co.uk/tech/12085645/south-pole-wall-structure-below-earth/

pomarede, to Astronomy
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Bonestell, APOD, same vibe

left: Saturn as seen from Titan, by Chesley Bonestell - 1944
right: Plane Crossing Crescent Moon, © Juned Patel, APOD 23/12/04

image/jpeg

pomarede, to Astronomy
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Astrobiology Journal covers appreciation post

Science Potential from a Europa Lander (2013)

https://liebertpub.com/toc/ast/13/8

Jupiter's moon Europa is believed to have a subsurface ocean and potentially the chemical ingredients to permit life. A landed mission to Europa is one of the top long-term aspirations of planetary science, to understand Europa's potential habitability and to seek signs of life.

Cover art: Tyler Nordgren

pomarede, to Wikipedia
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Hot from Wikipedia

Ho'oleilana enters the List of largest cosmic structures: https://en.wikipedia.org/wiki/List_of_largest_cosmic_structures

This list also account for two other of our past Cosmicflows findings: Laniakea and the South Pole Wall.

pomarede, to space
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OTD 2021 Perseverance descent and touchdown on Mars

a few days later NASA JPL releases a stunning recording of this technical feat: https://www.youtube.com/watch?v=uKxYMRfKAEs

pomarede, to space
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JWST is most in-demand telescope ever - leaving many astronomers in the cold

Reviewers will likely approve only one in every nine research proposals submitted in latest application cycle.

https://nature.com/articles/d41586-024-00315-1

pomarede, to boulder
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Perseverance has moved forward to close-in with the big frowning boulder...

Image Credit: NASA/JPL-Caltech
https://mars.nasa.gov/mars2020/multimedia/raw-images/NLF_1068_0761752231_722ECM_N0501618NCAM02068_07_195J

pomarede, to Astronomy
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Here's an astronomy quiz, published in 1955 in the Worlds of IF Science Fiction pulp magazine.

Check out its free reissue in webzine format: https://worldsofifmagazine.com/webzine-reissues

(answers to the quiz below)

pomarede, to physics
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Discovery of the Amaterasu 240 EeV cosmic ray particle, named after the goddess of the sun in Japanese mythology, by the Telescope Array observatory in Utah. This mysterious event appears to have emerged from the Local Void. Intriguing!

https://www.theguardian.com/science/2023/nov/24/amaterasu-extremely-high-energy-particle-detected-falling-to-earth

pomarede, to random
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The farthest I’ve ever been in each of the four cardinal directions:

59° N: Skara Brae 🏴󠁧󠁢󠁳󠁣󠁴󠁿
141° E: Sapporo 🇯🇵
34° S: Cape of Good Hope 🇿🇦
158° W: Laniakea Beach 🇺🇸

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