V Martín

Husband & Empty Nester. Software Engineer. Planetary Science aficionado. Casual artist. Basque/Spanish heritage, assimilated Swede = suecobilbaino. Star Wars sequelist. 🙃-marked shitposting. All my art & photos licensed CC BY-NC-SA

Pronouns: He/him
Location: [#Småland](https://mastodon.social/tags/Sm%C3%A5land ), Sweden
Tags: [#PlanetArtober](https://mastodon.social/tags/PlanetArtober ) [#JezeroDeltaScience](https://mastodon.social/tags/JezeroDeltaScience ) [#JezeroRimScience](https://mastodon.social/tags/JezeroRimScience ) [#onlookerOnTour](https://mastodon.social/tags/onlookerOnTour )
Web: https://sharponlooker.net

Public Key

npub19ytkla85xnd8jl443nwhtyhqvrh2p9n2ggqfuw6tmqh2d6837d7s58tkgu

NIP-05 Address

sharponlooker_at_mastodon.social@momostr.pink

Profile Code

nprofile1qqszj9m07n6rfkne066ceht4jtsxpm4qje4yyqy78d9ast4xarclxlgpz3mhxue69uhhyetvv9ujuerpd46hxtnfduqs6amnwvaz7tmwdaejumr0ds4d3mdt

Publishing to

relay.damus.io

nos.lol

Author Public Key

npub19ytkla85xnd8jl443nwhtyhqvrh2p9n2ggqfuw6tmqh2d6837d7s58tkgu

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Last Notes

2026-07-02 08:09:00 UTC

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if you have the time: why this specific sq m? Thx

2026-07-01 12:44:06 UTC

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metallic is one way to call them 🙃
https://mastodon.social/@sharponlooker/109544672069902925

2026-06-29 07:07:01 UTC

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Škoda is in the VW "family" and there has been so many of these annoying and sometimes dangerous UX own-goals throughout the years, I wonder what kind of quality checking and compliance monitoring goes on for all of it.
VW would need a UX "czar" to right all wrongs I guess... 😉

2026-05-30 23:35:08 UTC

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cool word indeed, TIL that little detail: https://en.wikipedia.org/wiki/Yardang
I must be misremembering, but I thought I first heard the word in connection to Pluto's bladed terrain. Curiosity's approaching images are captivating: https://mastodon.social/@sharponlooker/115258155327607186
https://files.mastodon.social/media_attachments/files/116/666/119/936/619/952/original/e785f8d3ec5025e1.png

2026-05-30 22:57:01 UTC

Impact melt from the Gale crater yardangs as a possible source of that stunning pure sulfur #CuriosityRover crushed many sols ago. 🤯
Rapin (@npub1x3w…0xqr ) et al: "Native Sulfur Deposit by Impact Melt Flow from Yardangs Unit at Gale Crater"
https://www.hou.usra.edu/meetings/lpsc2026/pdf/1036.pdf
https://files.mastodon.social/media_attachments/files/116/665/985/585/745/315/original/93dd677bc3f9a427.png

2026-05-04 20:12:27 UTC

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the discord link above is where I got it from. fredk is an avid image processor but I'm not aware if they have a main account for posting (maybe @npub1mvn…s2a0 or @npub1pct…f46x know?). The source photos are in the public domain & I bet there'll be more processing by others ( @npub1tjz…mk9e ?) since there appears to be more exposures, only of varying quality (the lighting conditions are challenging but so gorgeous...)

2026-05-04 13:56:42 UTC

The "Hello World" photo from #ArtemisII did not come alone. Here's an animation put together by fredk of multi exposures (UMSF After Party https://discord.com/channels/1290524907624464394/1305654861496451182) showing a receding Earth in moonshine.
Crank up the brightness and behold lightning in Africa & South America, changing aurorae at the poles... and satellite glints all over the place, most visible at 3 and 9 o'clock 🤯
I remember ppl suggesting using stuff like this to do SETI...
[EDIT: the "Clarke Exobelt" https://doi.org/10.3847/1538-4357/aaae66]
https://files.mastodon.social/media_attachments/files/116/516/623/288/143/815/original/a73d292a063bc7e9.mp4

2026-03-30 21:38:19 UTC

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one could almost imagine that carboard model being 1:1 scale 🙃

2026-02-20 10:56:35 UTC

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fav case is the edge-on warp deducted from Gaia data
https://www.esa.int/Science_Exploration/Space_Science/Gaia/Gaia_discovers_our_galaxy_s_great_wave

2026-02-18 09:48:55 UTC

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men Kevin är nog svårast att omvandla 😉
Usch vad vi är fördomsfulla 🙃

2026-02-18 09:27:29 UTC

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nitpick: Kevin i Sölve låter för ung i mina öron, menar du inte Kenneth? 🙃

2026-02-16 07:40:43 UTC

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går det bra att ta bort det publika meddelandet efter verifiering?

2026-01-21 15:28:34 UTC

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amazing, do you think you'll come to completely different conclusions than him? 😉
What kind of rock did they use for that one, with all the clasts?

2026-01-08 14:37:46 UTC

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if you don't like these ripples, I have others 🙃
Sol 1704: https://mastodon.online/@NeV_T/115730516539045635
https://files.mastodon.social/media_attachments/files/115/859/978/566/943/371/original/bdd8f5da3130f70b.png

2026-01-08 13:59:00 UTC

Timeline cleanser: megaripple beauty in [@NeV_T](https://mastodon.online/@NeV_T ) 's processed panorama of #PerseveranceRover sol 1717.
https://mastodon.online/@NeV_T/115844181300622465
https://files.mastodon.social/media_attachments/files/115/859/727/068/561/083/original/5c1028d71799f5bc.png
https://files.mastodon.social/media_attachments/files/115/859/762/897/516/483/original/5e30aa1906178c8d.png
https://files.mastodon.social/media_attachments/files/115/859/781/194/009/359/original/5443ec8dc794045b.png
https://files.mastodon.social/media_attachments/files/115/859/829/418/617/333/original/f0b4ed2032749ae2.png

2026-01-07 10:27:57 UTC

All the "gory" details on the Jezero margin unit 😉
Jones et al: "Stratigraphy of Carbonate-Bearing Rocks at the Margin of Jezero Crater: Evidence for Shoreline Processes?"
https://doi.org/10.1029/2025JE009111
#JezeroMarginUnit #JezeroDeltaScience #JezeroRimScience
https://files.mastodon.social/media_attachments/files/115/853/328/395/325/703/original/e119ffb6815a60b2.png

2025-12-15 06:34:44 UTC

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*waving* 😉

2025-12-13 08:20:20 UTC

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safe travels!

2025-11-27 19:19:58 UTC

Crop by [@Del_4Ri](https://mastodon.online/@Del_4Ri ) of #PerseveranceRover's sol 1694 panorama
Full res download: https://www.flickr.com/photos/134331707@N02/54950407183
Credits: NASA / JPL-Caltech / ASU / MSSS / Martian-Observer
https://files.mastodon.social/media_attachments/files/115/623/235/187/306/062/original/d5cd6a243471ecb8.jpg

2025-11-24 09:14:42 UTC

The greenish spots at the southern bank of Neretva are also astrobiology-interesting. #LeopardSpots #ReddestRock #MalgosaCrest #JezeroDeltaScience
Broz et al: "Green reduction spots in red sedimentary rocks of the Bright Angel formation..."
https://agu.confex.com/agu/agu25/meetingapp.cgi/Paper/1990965
https://files.mastodon.social/media_attachments/files/115/603/898/118/811/303/original/9f544811f21cabe3.png

2025-10-24 07:21:09 UTC

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https://files.mastodon.social/media_attachments/files/115/427/924/441/015/229/original/220e47c4f2c5d339.jpeg

2025-09-18 06:09:35 UTC

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thx, I would have guessed something like it if the photo's taken at eyeline height and the display is slightly elevated on the wall.

2025-09-18 05:14:49 UTC

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thx for sharing, what's the approximate height?

2025-08-20 05:05:11 UTC

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Day 2 starts at 07:55 CET
https://www.svtplay.se/video/KMyy33m/den-stora-kyrkflytten/andra-dagen
#Kiruna

2025-08-19 16:57:54 UTC

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Mrs Wife has said several times before she'd love to do this with our house if we ever move back to Skåne, that it's actually more economical than other choices, but I'm less convinced now 😉

2025-08-19 15:28:59 UTC

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There sure is going to be timelapses, but here's a teaser with some SVT footage that wasn't affected by the hard winds, at something like 15x speed.
[EDIT]: here's one https://www.svt.se/nyheter/lokalt/norrbotten/se-kyrkan-rora-sig-i-rekordfart
#Kiruna
https://files.mastodon.social/media_attachments/files/115/056/132/699/538/620/original/a6238ee6e1bd282f.mp4

2025-08-19 14:38:15 UTC

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Day 1 done, church cordoned off.. as if that has stopped swedes in the past 🙃
https://en.wikipedia.org/wiki/G%C3%A4vle_goat
#Kiruna
https://files.mastodon.social/media_attachments/files/115/055/923/125/249/623/original/47eafed62ab849c2.png
https://files.mastodon.social/media_attachments/files/115/055/923/776/487/457/original/bc31da4406d9e9bb.png

2025-08-19 14:29:12 UTC

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Sverker had now finally got a number from LKAB for the move, ballpark 50M€ 🤯
8 years of preps.

2025-08-19 14:07:20 UTC

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Para los castellanoparlantes, Kiruna es esdrújula 😉

2025-08-19 13:28:11 UTC

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we feel you church, who likes a roundabout... 🙃
#Kiruna
https://files.mastodon.social/media_attachments/files/115/055/657/687/730/425/original/17538432d00d4609.png

2025-08-19 13:18:03 UTC

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the underpass made it 😌
https://files.mastodon.social/media_attachments/files/115/055/617/429/740/418/original/0cb3b1c33f4a9fea.png

2025-08-19 13:06:52 UTC

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Looks like the engineer decided to pray now that the worst part is coming 🙃
#Kiruna
https://files.mastodon.social/media_attachments/files/115/055/561/363/054/384/original/93675a25e749fa84.png
https://files.mastodon.social/media_attachments/files/115/055/570/644/240/854/original/5e912dbfc69fd943.png

2025-08-19 12:56:39 UTC

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Kudos to this italian artist trying to capture the moment in a watercolor.
Interview in english at 06:29:00 (https://www.svtplay.se/video/KnDgQ9G/den-stora-kyrkflytten/forsta-dagen?video=visa&position=23336)
https://files.mastodon.social/media_attachments/files/115/055/530/610/926/787/original/d76b6ead53cd9836.png
https://files.mastodon.social/media_attachments/files/115/055/520/600/487/491/original/d28a4f275b3b7265.png

2025-08-19 11:52:19 UTC

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Now on the "improvised" motorway
#Kiruna
https://files.mastodon.social/media_attachments/files/115/055/276/148/472/007/original/fb03b8a4231acc0f.png

2025-08-19 10:55:16 UTC

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I heard his surname wrong, the interviewer says he lives in Germany... Sebastian Druker it is (https://www.aftonbladet.se/nyheter/a/RzWgoa/kyrkflytten-i-kiruna-hemliga-detaljen)
https://files.mastodon.social/media_attachments/files/115/055/047/231/596/177/original/cb7f239e8b9285fb.png

2025-08-19 10:39:05 UTC

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#Småland represented 🙃
Compare the dialects (04:27) https://www.svtplay.se/video/KnDgQ9G/den-stora-kyrkflytten/forsta-dagen?video=visa&position=16010
https://files.mastodon.social/media_attachments/files/115/054/987/450/884/549/original/2b08cb351b7130e7.png

2025-08-19 10:32:54 UTC

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I would call this a filler one if it'd be a Tour de France stage 🙃
#Kiruna
https://files.mastodon.social/media_attachments/files/115/054/927/076/205/440/original/2c755597f12b572f.png

2025-08-19 10:17:29 UTC

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esto escrito mientras comía yo, que uno se ha adaptado 🙃

2025-08-19 10:03:54 UTC

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Se para para el almuerzo (sí, sobre las 12) y por supuesto el único que se encuentra para entrevistar es un argentino, quién c.jones va a comer a estas horas estará pensando 🙃
(interview in english at 04:00:00: https://www.svtplay.se/video/KnDgQ9G/den-stora-kyrkflytten/forsta-dagen?position=14401)
#Kiruna
https://files.mastodon.social/media_attachments/files/115/054/853/651/250/353/original/2c6279a7c20b63f8.png

2025-08-19 09:26:21 UTC

#Kiruna church on its way away from the looming mine.
Snapshot from SVT livestream: https://www.svtplay.se/video/KnDgQ9G/den-stora-kyrkflytten/forsta-dagen?video=visa&position=6097
Read more
https://www.bbc.com/news/articles/cde3xp4xlw9o
https://files.mastodon.social/media_attachments/files/115/054/688/862/576/383/original/66a2e3307392d030.png

2025-08-17 09:49:38 UTC

Lovely intro by Tod Lauer
https://noirlab.edu/public/blog/leaving-stars-home/
to this paper
Lauer et al (incl. @npub10m8…6gmu): "A Demonstration of Interstellar Navigation Using New Horizons"
https://iopscience.iop.org/article/10.3847/1538-3881/addabe
#NewHorizons
https://files.mastodon.social/media_attachments/files/115/043/465/949/602/684/original/55a188a8f48d37d8.mp4

2025-08-12 19:36:14 UTC

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almost 3k observations already, that's a lot for a new object, right?
https://minorplanetcenter.net/db_search/show_object?utf8=%E2%9C%93&object_id=3I
Are these the ones you mean with points? Do you filter out on quality somehow?
#3IATLAS

2025-06-23 21:06:00 UTC

The best part of #RubinFirstLook: the exquisite quality, sheer number of frames, and algorithm matching for each asteroid detection. As expected, this is game over for all other "citizen science" projects or amateur observations out there, at least for MBAs: who can beat this?
https://rubinobservatory.org/gallery/collections/first-look-gallery/5iqj02kcs14lt24j845a58n15p
Credit: NSF–DOE Vera C. Rubin Observatory
https://files.mastodon.social/media_attachments/files/114/734/709/319/548/327/original/76b63909d671e80d.mp4

2025-04-11 22:53:31 UTC

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thank you! So much movement for such a far object, good proof of what JWST can do

2025-04-11 21:56:19 UTC

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gotta say, after many classifications of asteroids & NEOs in zooniverse projects of the Catalina Sky Survey, the quality of these sequences by JWST is jawdropping (not surprisingly). How much time between every frame, are we talking minutes/hours/days?

2025-04-11 16:34:18 UTC

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👍👍👍 Thank you, good hunting!

2025-04-11 16:13:10 UTC

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viendo el nombre de la observación, serán los KBO que querían localizar no?

2025-03-26 12:48:56 UTC

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seeing this being built sold me on Ti. And thank TiO2 for good sunscreen! 😉
https://files.mastodon.social/media_attachments/files/114/228/777/120/555/346/original/4791c6ee446aeaf3.jpg

2025-02-24 23:05:02 UTC

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Predicting a higher number of contact binary KBOs thanks to #NewHorizons observations from its privileged vantage point.
@npub10m8…6gmu et al : "Measuring the Shapes of Kuiper Belt Objects with New Horizons Photometry"
https://www.hou.usra.edu/meetings/lpsc2025/pdf/1646.pdf
🧵 34/n
https://files.mastodon.social/media_attachments/files/114/061/363/056/641/847/original/376da27563008761.png

2025-02-24 20:18:35 UTC

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#TitanMoon ‼️ Excellent summary of the geology around the Huygens probe landing site. Works well with that great processing of the descent images by D. Machacek (https://mastodon.social/@sharponlooker/113833784242139494).
[@mike_malaska](https://deepspace.social/@mike_malaska ) et al : "Geological History of the Huygens Landing Site, Titan"
https://www.hou.usra.edu/meetings/lpsc2025/pdf/2237.pdf
🧵 33/n
https://files.mastodon.social/media_attachments/files/114/060/690/943/718/518/original/760d796ee7699463.png
https://files.mastodon.social/media_attachments/files/114/060/691/350/466/814/original/b3c95f179a308935.jpg
https://files.mastodon.social/media_attachments/files/114/060/691/814/450/453/original/f5b39937b13cd1bd.png

2025-02-24 19:34:56 UTC

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On the team's MCZ mosaics and their planned complete release to https://mastcamz.asu.edu/mars-images/panoramas-mosaics/
Bell III et al : "Landscape Mosaics Acquired in #JezeroCrater by the Mastcam-Z Investigation on #PerseveranceRover"
https://www.hou.usra.edu/meetings/lpsc2025/pdf/1719.pdf
🧵 32/n
https://files.mastodon.social/media_attachments/files/114/060/519/373/746/049/original/4461f02e79ce6eb5.png
https://files.mastodon.social/media_attachments/files/114/060/519/573/849/836/original/1394d27ed4104053.png

2025-02-24 13:04:54 UTC

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A jump back to Neretva and thread post nr 6 ( https://mastodon.social/@sharponlooker/113985129537205094 ), this time with strong measurements of organics.
Murphy and Uckert, et al : "Spatially Resolved Complex Organic Matter Detected in an Ancient River Valley in Jezero"
https://www.hou.usra.edu/meetings/lpsc2025/pdf/2241.pdf
"We report the detection of macromolecular carbon (MMC) by Deep-UV Raman spectroscopy in multiple ancient riverbed rock targets in Jezero crater"
🧵 31/n
#JezeroDeltaScience
https://files.mastodon.social/media_attachments/files/114/058/953/647/860/057/original/d66f143b95792dc4.png
https://files.mastodon.social/media_attachments/files/114/058/954/300/703/435/original/8799d950d71d1e54.png
https://files.mastodon.social/media_attachments/files/114/058/954/687/049/825/original/caef07987ab6f26d.png
https://files.mastodon.social/media_attachments/files/114/058/955/060/205/190/original/d18800a9c61e6cde.png

2025-02-24 08:08:01 UTC

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There are four papers on the pure-sulphur deposit found by #CuriosityRover on #GedizVallis on the second half of this session:
https://www.hou.usra.edu/meetings/lpsc2025/technical_program/?session_no=604
https://www.hou.usra.edu/meetings/lpsc2025/pdf/1366.pdf
https://www.hou.usra.edu/meetings/lpsc2025/pdf/1208.pdf
https://www.hou.usra.edu/meetings/lpsc2025/pdf/1476.pdf
https://www.hou.usra.edu/meetings/lpsc2025/pdf/1949.pdf
🧵 30/n
https://files.mastodon.social/media_attachments/files/114/057/835/178/185/243/original/48ff1264e6b961f7.png

2025-02-24 07:51:38 UTC

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Schwenzer et al: "Martian Atmosphere: Trapped, Adsorbed and Exchanged; Trapped, Adsorbed, and Sampled — Considerations for #MarsSampleReturn"
https://www.hou.usra.edu/meetings/lpsc2025/pdf/1581.pdf
"MSR will be a huge step towards understanding the Martian system in its entirety. A major factor for Martian habitability is its atmosphere. To fully understand the Martian surface environments, a pure atmospheric sample is paramount."
🧵 29/n
https://files.mastodon.social/media_attachments/files/114/057/757/365/821/087/original/4cdf68e4506e2515.png
https://files.mastodon.social/media_attachments/files/114/057/759/434/291/264/original/f56c235d3cf9cad2.png

2025-02-24 07:40:12 UTC

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Chide et al : "Search for In Situ Signatures of Electric Activity on Mars"
https://www.hou.usra.edu/meetings/lpsc2025/pdf/1427.pdf
"Signatures relevant of triboelectric discharges are observed in #PerseveranceRover SuperCam microphone data. It demonstrates the existence of electric activity in the atmosphere of Mars. Implications for this electric activity are discussed."
🧵 28/n
https://files.mastodon.social/media_attachments/files/114/057/706/170/815/576/original/3dd7aa9c3f7c705a.png
https://files.mastodon.social/media_attachments/files/114/057/700/477/616/260/original/04eae609255a64e1.png
https://files.mastodon.social/media_attachments/files/114/057/700/939/668/975/original/1bbbf1a38a408b9c.png
https://files.mastodon.social/media_attachments/files/114/057/723/752/692/714/original/408f17e41804325d.png

2025-02-23 18:13:04 UTC

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Lin et al : "Phenocryst Provenance from the Deep Interior Revealed by the Séítah Olivine in Jezero Crater"
https://www.hou.usra.edu/meetings/lpsc2025/pdf/1299.pdf
"Using refined terrestrial models of magma cooling, we analyzed the evolution of the Séítah parent magma and concluded that the olivine crystals are subsurface phenocrysts."
🧵 27/n
#JezeroCraterFloor
https://files.mastodon.social/media_attachments/files/114/054/539/758/970/219/original/f2722352567987cf.png
https://files.mastodon.social/media_attachments/files/114/054/540/070/288/006/original/7af5506bda9cedb3.png
https://files.mastodon.social/media_attachments/files/114/054/545/947/126/019/original/c555fd9c3c425f43.png

2025-02-23 17:37:20 UTC

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‼️ et al : "Photogrammetric Processing of MSL Images: A Case Study at the Mont Mercou Outcrop in Gale Crater"
https://www.hou.usra.edu/meetings/lpsc2025/pdf/2074.pdf
"We present a new pipeline to generate digital outcrop models (DOM) from Curiosity rover images and generated a new high resolution DOM of the Mont Mercou outcrop."
Low-res model: https://sketchfab.com/3d-models/mont-mercou-gale-crater-on-mars-c626b4a2a1eb4051b6050b37cbb6597a
🧵 26/n
https://files.mastodon.social/media_attachments/files/114/054/400/620/033/027/original/86f7da474be8f1d7.png
https://files.mastodon.social/media_attachments/files/114/054/407/957/101/276/original/e020a408ae4397ec.png
https://files.mastodon.social/media_attachments/files/114/054/452/838/384/277/original/b2d3de7e2f5b2083.png

2025-02-23 10:18:19 UTC

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Sharmili et al: "Exploring the Depositional and Erosional Morphology of Jezero Crater’s Western Fan Using Coupled Numerical Models of Sediment Deposition and Erosion"
https://www.hou.usra.edu/meetings/lpsc2025/pdf/1193.pdf
"Based on the two coupled numerical models, the present study uncovers the potential scenario for the preservation of the Jezero Crater's western fan by erosion-resistant boulder deposits (capping unit), maintaining its shape over billions of years."
🧵 25/n
#JezeroDeltaScience
https://files.mastodon.social/media_attachments/files/114/052/663/855/042/290/original/6285f8e901c64b62.png
https://files.mastodon.social/media_attachments/files/114/052/675/665/227/420/original/d53230cf4fbf919b.png

2025-02-23 08:40:38 UTC

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Iteration on #SlopeStreaks, the figure is from the origin paper (https://doi.org/10.1016/j.icarus.2024.116270)
Heyer et al: "Albedo Analysis of Martian Dust Devil-Induced Slope Streaks and Tracks"
https://www.hou.usra.edu/meetings/lpsc2025/pdf/1063.pdf
🧵 24/n
https://files.mastodon.social/media_attachments/files/114/052/269/499/722/920/original/b9a9d71d2afb21be.png
https://files.mastodon.social/media_attachments/files/114/052/275/615/024/534/original/2067bb2161c2d557.png
https://files.mastodon.social/media_attachments/files/114/052/279/019/249/827/original/5f75f7fd1ffd65fb.png

2025-02-22 18:34:23 UTC

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Another really interesting poster that needs more work. It does already give good time-constraints for Bright Angel, although I could not find anywhere that BA would post-date the fan, as its conference summary says (maybe they mean the deformation folding).
Barnes et al : "Late Deformation of the Bright Angel Formation in Western Neretva Vallis"
https://www.hou.usra.edu/meetings/lpsc2025/pdf/2311.pdf
🧵 23/n
#JezeroDeltaScience
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2025-02-22 18:15:15 UTC

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Poster on the mid and upper delta traverse. A tad incomplete, I'd rather wait for the final paper for better understanding. At least, a verification that the Margin Unit predates the delta/fan.
Russell et al : "RIMFAX GPR Observations of the Jezero Crater Western Fan and Transition to Margin Unit"
https://www.hou.usra.edu/meetings/lpsc2025/pdf/2455.pdf
🧵 22/n
#JezeroDeltaScience
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2025-02-21 16:30:49 UTC

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Vasavada & Fraeman: "#CuriosityRover: Status, Sulfur Surprise, and a Sneak Peak at Extended Mission 5"
"NASA's MSL recently explored a canyon carved by ancient flowing water and discovered native sulfur for the first time on Mars. A proposed fifth Extended Mission aims to understand the fate of habitability at and below the surface"
🧵 21/n
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2025-02-21 13:17:35 UTC

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Interesting usage of #CuriosityRover 's RMI. Personally I found the unchanged dark streak most amazing.
Le Mouélic et al: "Gale's Yardang Unit Revealed by ChemCam Remote Microscopic Imager"
https://www.hou.usra.edu/meetings/lpsc2025/pdf/1842.pdf
"We describe the imaging campaign of the Yardang unit in Gale crater on Mars by the ChemCam instrument onboard the Curiosity rover. Different morphologies are progressively observed as the rover is getting closer of this geological unit."
🧵 20/n
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2025-02-21 11:06:39 UTC

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Poster on very preliminary RIMFAX analysis of the Crater Rim campaing.
Cardarelli et al: "RIMFAX Ground Penetrating Radar Observations of Subsurface Structures in the Crater Rim of Jezero"
https://www.hou.usra.edu/meetings/lpsc2025/pdf/2888.pdf
🧵 19/n
#JezeroRimScience
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2025-02-20 20:13:38 UTC

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Poster for a new iteration of analysis of light-toned float rocks, and a suggested formation scenario. #spinel #kaolinite
Royer et al : "Mineral Diversity of Light-Toned Float Rocks in Jezero Crater as Seen by SuperCam"
https://www.hou.usra.edu/meetings/lpsc2025/pdf/1872.pdf
🧵 18/n
#JezeroDeltaScience #JezeroRimScience #JezeroBrightRocks
[EDIT]: final paper at https://www.nature.com/articles/s43247-024-01837-2
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2025-02-20 08:41:52 UTC

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Poster on #FreyaCastle / "zebra rock". Not sure if we can see which one is #KautzCreek without the #PDSAnalystNotebook perhaps.
Klidaras et al: "The Enigma of "Zebra Rock": A Banded Rock Discovered on the Jezero Crater Rim"
https://www.hou.usra.edu/meetings/lpsc2025/pdf/2014.pdf
"Gaze through ancient lines / Secrets buried deep in time / Zebra stripes of Mars."
🧵 17/n
#JezeroRimScience #JezeroBrightRocks
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2025-02-20 08:18:27 UTC

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Poster on MSR planning
Harrington et al: "#MarsSampleReturn: Considerations for the Curation of Astromaterials from a Restricted Planet"
https://www.hou.usra.edu/meetings/lpsc2025/pdf/2377.pdf
"Technology development and feasibility studies for the proper curation of martain samples are underway. This research and technology development will be critical to inform the design of the Sample Receiving Facility and the concept of operations. "
🧵 16/n
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2025-02-19 07:51:24 UTC

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#Nesquehonite #AmherstPoint #PelicanPoint
Srivastava et al: "In Situ Observation of Hydrated Carbonate in Jezero"
https://www.hou.usra.edu/meetings/lpsc2025/pdf/1595.pdf
"The study reports the first in situ occurrence of hydrated carbonate on Mars..."
#JezeroDeltaScience
🧵 15/n

2025-02-18 11:19:10 UTC

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New iteration on coatings from some of the same team that investigated the #JezeroPlaster
Garczynski et al: "Summary of Rock Coating Observations on Mars from Past Rover Missions"
https://www.hou.usra.edu/meetings/lpsc2025/pdf/2769.pdf
"Coatings on Mars form / Purple hues on ancient stone / Past climate revealed"
🧵 14/n
#JezeroDeltaScience
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2025-02-15 16:59:51 UTC

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Summary of prep groups & activity for MSR 🤞
Carrier et al: "#MarsSampleReturn Science Planning Updates"
https://www.hou.usra.edu/meetings/lpsc2025/pdf/2278.pdf
🧵 13/n

2025-02-14 18:34:01 UTC

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A summary of the samples collected and to be collected by the rover.
Herd et al: "The Samples Collected by #PerseveranceRover: Enabling Decadal Science"
https://www.hou.usra.edu/meetings/lpsc2025/pdf/1665.pdf
🧵 13/n
#LeopardSpots
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2025-02-14 14:21:58 UTC

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Orbital analysis of #PerseveranceRover current stomping grounds. The proposed layered unit (nr 4) is compared to Bright Angel.
Gwizd et al: "Orbital Perspectives on the Witch Hazel Hill Region: Evidence for Structural Deformation of Possible Noachian Basement Material"
https://www.hou.usra.edu/meetings/lpsc2025/pdf/1760.pdf
🧵 12/n
#JezeroRimScience #WitchHazelHill
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2025-02-14 13:58:05 UTC

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More on the high-silica rocks story, with references again to AEGIS_0910A (https://mastodon.social/@sharponlooker/112073687379681538). The whole paper is quotable, so I just hand-picked some extracts from the discussion. This is the first time I see them referring to Turquino and surroundings as a "suspected inverted fracture
network"
Beck et al: "From Hydrated Silica to Quartz: Potential Hydrothermal Precipitates Found in Jezero"
https://www.hou.usra.edu/meetings/lpsc2025/pdf/1306.pdf
🧵 11/n
#JezeroRimScience #JezeroDeltaScience
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2025-02-13 20:04:37 UTC

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Back to #JezeroRimScience, continuing from post nr 5 in the thread. Paper on what SuperCam detected on the inner rim ridges, multitude of possible explanations, more work needed.
Bedford et al: "Geological Diversity in the Jezero Crater Rim Investigated with SuperCam: Insights into Impact Processes on Mars"
https://www.hou.usra.edu/meetings/lpsc2025/pdf/2495.pdf
Companion poster:
Quantin-Nataf et al: "Alteration diversity observed in the inner part of Jezero Crater Rim"
https://www.hou.usra.edu/meetings/lpsc2025/pdf/2189.pdf
🧵 10/n
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2025-02-11 22:32:38 UTC

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Another temporary jump, maybe @npub1z0j…ddwy & @npub1mvn…s2a0 are interested in this new DEM? There's a link to the data but didn't work for me, maybe won't be released until the conference.
Bland et al : "HiRISE Digital Elevation Model and Orthoimage Mosaics in Support of Perseverance Operations and MSR"
https://www.hou.usra.edu/meetings/lpsc2025/pdf/1627.pdf
🧵 9/n

2025-02-11 21:53:58 UTC

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This one looks at the opposite shore of Neretva, where things are complicated by unsure stratigraphy (see post nr 1 in this thread). Also there's a lacking detection of organics. Abiotic processes are deemed "possible"
Broz et al :"Green Reduction Spots in Red Beds of the Bright Angel Formation and Implications for Biosignature Preservation Potential"
https://www.hou.usra.edu/meetings/lpsc2025/pdf/1706.pdf
🧵 8/n #JezeroDeltaScience
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2025-02-11 20:10:46 UTC

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These are strong words 😉
Tice et al: "Physical and Chemical Constraints on Biotic and Abiotic Formation Mechanisms of "Poppy Seeds" and "#LeopardSpots"..."
https://www.hou.usra.edu/meetings/lpsc2025/pdf/2133.pdf
🧵 7/n #JezeroDeltaScience
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2025-02-11 11:57:27 UTC

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Interrupting my sequential traverse of abstracts; one thing lead to another and I ended up looking at the #LeopardSpots (+ "poppy seeds") papers, with "strong" wording for potential biosignatures.
Look at the much longer author list of this first one:
Hurowitz et al: "The Detection of a Potential Biosignature by #PerseveranceRover"
https://www.hou.usra.edu/meetings/lpsc2025/pdf/2581.pdf
A total of 4 related presentations in the Astrobiology session
https://www.hou.usra.edu/meetings/lpsc2025/technical_program/?session_no=405
🧵 6/n #JezeroDeltaScience
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2025-02-10 13:27:15 UTC

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More #JezeroRimScience : hypothesizing on the impact statigraphy of the inner rim. Focused around Turquino and including a preliminary DCS analysis of #CrystalCreekJezero
Horgan, Alwmark (Lund University) et al: "A Possible Impactite Stratigraphy on the Jezero Inner Crater Rim Explored by #PerseveranceRover"
https://www.hou.usra.edu/meetings/lpsc2025/pdf/2636.pdf
Borrowing some context from reference [14] Osinski et al, non-paywalled in the wayback machine:
https://web.archive.org/web/20210205222119/http://www.planetary.brown.edu/pdfs/Osinski%20et%20al_2018.pdf
🧵 5/n
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2025-02-07 14:15:19 UTC

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This one was surprisingly interesting and info-rich on what is to come for #JezeroRimScience
Tornabene & Osinski: "Exploring the Complexity of Mars' Ancient Crust on the Jezero Crater Rim"
https://www.hou.usra.edu/meetings/lpsc2025/pdf/2829.pdf
The approximate area included in fig. 3 here marked in MUTED and with CTX camera imagery. #PerseveranceRover is currently at the far left (north on the map) and fig. 2 is a subset further south.
https://muted.wwu.de/?x=77.335&y=18.434&z=36581&ch=185.8&cp=-86.0&cr=180.0&d=102&b1=18.3559&b2=18.4693&b3=77.244&b4=77.2955
The HIRISE photo used
https://ode.rsl.wustl.edu/mars/indexproductpage.aspx?product_id=ESP_081956_1985_COLOR&product_idGeo=42054984
🧵 4/n
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2025-02-05 18:12:23 UTC

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This one is mostly a gateway to other incoming abstracts, but it has plenty of names for features and abrasions that may have not been mentioned before or hard to place on the map. Also, there's that "suspended in time" rock @npub1z0j…ddwy , with plenty of LCP 😉
https://mastodon.social/@65dBnoise/113442507860943682
Ravanis et al: "Diverse Igneous Rocks Observed During the Mars2020 Crater Rim Campaign in Jezero Crater Using Mastcam-Z Multispectral Data"
https://www.hou.usra.edu/meetings/lpsc2025/pdf/2678.pdf
3/n #JezeroRimScience
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2025-02-05 12:58:39 UTC

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New hashtag: #JezeroRimScience
A summary of the rim climb and what's happening outside the crater. Also "official" names for features, although figures are rather small.
Mayhew et al: "Strategic approach and first results from the Jezero crater rim campaign"
https://www.hou.usra.edu/meetings/lpsc2025/pdf/2718.pdf
🧵 2/n
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2025-02-05 09:56:21 UTC

#LPSC2025 abstracts dropped!
https://www.hou.usra.edu/meetings/lpsc2025/technical_program/
First on the #JezeroDeltaScience list: stratigraphy analysis of Bright Angel on both channel "shores". Interesting clues and puzzles on the southern side.
Jones et al: "Is the Bright Angel formation a valley-confined lacustrine succession?"
https://www.hou.usra.edu/meetings/lpsc2025/pdf/1984.pdf
🧵 1/n
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2024-12-01 01:44:02 UTC

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to the left of the skull/toaster, there's this other piece that you could almost jigsaw back into the former (we call it the toast) and it has the most extreme case of coating I've ever seen in Jezero
https://files.mastodon.social/media_attachments/files/113/575/024/771/795/319/original/d3e90821089cd319.png
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2024-12-01 01:21:24 UTC

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I retract myself 😉 there was this one too
https://mastodon.social/@sharponlooker/112824014737415347

2024-12-01 01:18:10 UTC

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I haven't yet seen anything more detailed that a facies classification (section 5.4 Thin-Bedded Granule Sandstone on https://agupubs.onlinelibrary.wiley.com/doi/10.1029/2023JE008187) and no mention yet of this chunk or other fallen ones where the 3D structure can be better appretiated
https://mastodon.social/@sharponlooker/111965398862530418

2024-11-30 23:39:32 UTC

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besides spookiness, this was a very interesting chunk at Rockytop (we call it the "toaster"). By all looks, it's a felled piece of the nearby outcrop laying on its side, which gives a good look at the sandstone and its rind. And it has multiple occurrences of a thick coating that has recently gotten its own category named after just Rockytop:
https://mastodon.social/@sharponlooker/113545747394238574
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2024-11-30 11:21:12 UTC

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don' t forget the "Pamplona" challenge 🙃

2024-11-25 21:05:09 UTC

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moose or elk... cualquiera que sea la diferencia, los problemas los dan igual 😉
https://files.mastodon.social/media_attachments/files/113/545/607/146/167/472/original/87a524876c6f0985.webp

2024-11-25 16:54:03 UTC

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I'm leaning towards a young moose.. lo cual no debería sorprenderme 😉
p ej: https://www.researchgate.net/figure/Cervical-vertebrae-from-a-moose-Alces-alces-from-Utah-Bar-scales-are-5-cm-A-Caudal_fig3_232664334

2024-11-25 12:58:39 UTC

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Not what I was expecting, they looked too small to me. I was almost sure it was wild boar (because of other bones around), maybe deer, but the latter I can see now that nope. I'll look at it closer later, gracias!

2024-11-24 12:03:52 UTC

Missing person "cold case" search yday. I'm 100% sure these are animal bones, but it's the first time we've seen vertebrae and such a large grouping of bones, so Mrs Wife would like to have a 2nd opinion 😉
Do I know anyone with experience that can corroborate?
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2024-11-23 17:02:51 UTC

Re Lboost from [@michael_w_busch](https://mastodon.online/@michael_w_busch ) : https://mastodon.online/@michael_w_busch/113532773282844967
Here's a good summary & commentary: https://phys.org/news/2024-11-ryugu-asteroid-sample-rapidly-colonized.amp
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2024-11-20 07:14:51 UTC

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but do they hold in season 2?
...
I'll show myself out 🙃

2024-11-19 09:44:38 UTC

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igual estaban mirando el local o federated timeline justo en ese momento... "like tears in the rain" y todo eso 😉

2024-11-17 21:17:33 UTC

Moon & Jupiter in a halo
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2024-10-15 16:09:45 UTC

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#ThickTrunkTuesday
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2024-10-15 12:17:07 UTC

In Alingsås today
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2024-10-13 18:54:19 UTC

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sí, tiene de todo, está muy establecido parece, y sigue estándares. Pero la inserción de datos, dependiendo de cuántos detalles quieras meter, es un poco turra

2024-10-13 15:11:09 UTC

Autumn colours #SilentSunday #Småland
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