!["We now know that HCl abundances [abundance?] can be between 2 and 8 ppbv and that it exhibits a strong seasonality, appearing when it [during?] the spring and summer in the southern hemisphere, with peak abundances occurring between 200° and 300°. The timing is the most likely may explain [reason?] why these teams were unable to find HCl, but set such low upper limits for the gas"](https://cdn.bsky.app/img/feed_thumbnail/plain/did:plc:ugynfassatvsemk722dx4o5g/bafkreids7iw2k7byef2n6tnmvjuz6hrfhf5wzch63ltiznp764fap5xgke)
"We now know that HCl abundances [abundance?] can be between 2 and 8 ppbv and that it exhibits a strong seasonality, appearing when it [during?] the spring and summer in the southern hemisphere, with peak abundances occurring between 200° and 300°. The timing is the most likely may explain [reason?] why these teams were unable to find HCl, but set such low upper limits for the gas"
This was a great brief read, thx for sharing!
This paragraph's legibility was a bit off, but easy to guess what you meant. If there's still a chance for corrections 😉
30.12.2025 23:51
👍 2
🔁 0
💬 0
📌 0
Meteo-frito was right there 🙃
29.12.2025 21:46
👍 0
🔁 0
💬 1
📌 0
Digital painting of the Three Forks area of Jezero Crater, with the rover's tracks visible.
Cliché but appropriate Spanish poem by Antonio Machado:
"Caminante, son tus huellas
el camino y nada más;
Caminante, no hay camino,
se hace camino al andar.
Al andar se hace el camino,
y al volver la vista atrás
se ve la senda que nunca
se ha de volver a pisar.
Caminante, no hay camino
sino estelas en la mar."
From 2022: 'Estelas"
Fingerpainted on tablet with #SketchbookApp
Study of the imho best unprocessed photo by #PerseveranceRover: mars.nasa.gov/mars2020-raw...
Last one, thx @jayispainting.earthskyart.ca for all your work and engagement making #ArtAdventCalendar a joy here!
#ArtAdventCalendar2025
23.12.2025 23:56
👍 8
🔁 4
💬 0
📌 0
Digital painting of the Three Forks area of Jezero Crater, with the rover's tracks visible.
Cliché but appropriate Spanish poem by Antonio Machado:
"Caminante, son tus huellas
el camino y nada más;
Caminante, no hay camino,
se hace camino al andar.
Al andar se hace el camino,
y al volver la vista atrás
se ve la senda que nunca
se ha de volver a pisar.
Caminante, no hay camino
sino estelas en la mar."
From 2022: 'Estelas"
Fingerpainted on tablet with #SketchbookApp
Study of the imho best unprocessed photo by #PerseveranceRover: mars.nasa.gov/mars2020-raw...
Last one, thx @jayispainting.earthskyart.ca for all your work and engagement making #ArtAdventCalendar a joy here!
#ArtAdventCalendar2025
23.12.2025 23:56
👍 8
🔁 4
💬 0
📌 0
Digital painting, a close-up of a partly buried Mars2020 sample tube from the Three Forks cache. Kodiak Butte and the southern Jezero crater rim are in the background, all under leaden skies.
'Forgotten But Not Gone"
Styluspainted on tablet with #SketchbookApp
#ArtAdventCalendar
22.12.2025 23:10
👍 4
🔁 1
💬 1
📌 0
A red potato-shaped satellite rising over a reflective surface and some thin clouds.
(This and the previous one from 2024)
"Minimoon Rising"
Styluspainted on tablet with #SketchbookApp
#ArtAdventCalendar
22.12.2025 00:31
👍 8
🔁 2
💬 1
📌 0
B&W image of what looks like a river but is actually a channel in an estuary. Behind are some silhouetted mountains. In the foreground are som dark rippled sandbanks.
Another one from the Kyle of Durness - black and white seemed to be in order for this one.
#Scotland #DronePhotography
20.12.2025 23:05
👍 192
🔁 20
💬 2
📌 1
An asteroid floating in front of a gibbous Mars disc.
"NeMO"
Styluspainted on tablet with #SketchbookApp
#ArtAdventCalendar
20.12.2025 23:30
👍 4
🔁 2
💬 1
📌 0
Portrait of an astronaut that has lifted the visor of their helmet and appears to take a deep breath.
"Scent of a Crater", with Renée from the #JezeroAstrotourists
Styluspainted on tablet with #SketchbookApp
#ArtAdventCalendar
20.12.2025 05:34
👍 0
🔁 1
💬 1
📌 0
Crop of the processed photo, looking like the head of an old man with prominent chin.
Waldorf and Statler from The Muppet Show.
Perseverance sol 1446 (around Sally's Cove) / Statler
mars.nasa.gov/mars2020/mul... with processing from 65dBnoise (mastodon.social/@65dBnoise/1...)
13/n #muppetdolia
19.12.2025 11:26
👍 0
🔁 1
💬 1
📌 0
A rock combo popping out of Martian regolith, one looking like the muppet's head, or even like Sonic.
Espinete, a human-sized pink hedgehog, from the spanish version of Sesame Street, looking gobsmacked in front of (probably) the Aqueduct of Segovia. Photo from muppetwiki.
A Spanish touch
Perseverance sol 1613 (Jezero rim) / Espinete
mars.nasa.gov/mars2020/mul... , processed by @nev-t.bsky.social (bsky.app/profile/nev-...)
14/n #muppetdolia
19.12.2025 11:26
👍 0
🔁 0
💬 0
📌 0
Crop of the processed photo, looking like the head of an old man with prominent chin.
Waldorf and Statler from The Muppet Show.
Perseverance sol 1446 (around Sally's Cove) / Statler
mars.nasa.gov/mars2020/mul... with processing from 65dBnoise (mastodon.social/@65dBnoise/1...)
13/n #muppetdolia
19.12.2025 11:26
👍 0
🔁 1
💬 1
📌 0
Crop from the linked photo, an eroded rock "howling with fear".
Beaker the Muppet.
Perseverance sol 1268 (by Dox Castle) / Beaker
Same as post nr 1: mars.nasa.gov/mars2020/mul...
12/n #muppetdolia
19.12.2025 11:26
👍 0
🔁 0
💬 1
📌 0
A gyrfalcon flying with wings wide open. Antennas from the Deep Space Network in the background.
2018 article:
https://translate.google.com/translate?hl=en&sl=es&tl=en&u=http%3A%2F%2Fwww.elmundo.es%2Fciencia-y-salud%2Fciencia%2F2018%2F08%2F17%2F5b41f6fc468aeb431f8b45d9.html
From 2022: "Guardián de Robledo"
(see alt text for inspiration article)
Fingerpainted on tablet with #SketchbookApp
#ArtAdventCalendar
19.12.2025 07:07
👍 4
🔁 1
💬 1
📌 0
Thank YOU for all the science, blog posts etc. Even if I read mostly Perseverance-related papers, it doesn't take long to see your name in some author list or references 😉
I see you're a muppet fan, if you haven't yet, I think you may want to see this thread (a couple new additions coming soon)
19.12.2025 06:53
👍 3
🔁 0
💬 1
📌 0
Mine was only a proof of concept, so I'm glad someone at NASA made a more refined version.
Their version apparently fuses more streams of telemetry to represent the true rover position at very small intervals, while mine was limited to only the Navcam image locations that were interpolated.
18.12.2025 09:29
👍 3
🔁 1
💬 1
📌 0
3 days I believe is optimistic, coz the navcam images used for navigation don't get uploaded to the NASA image feed, I'm not sure they even get to the data releases, do you know @stim3on.bsky.social ?
Now, if someone wants to add audio... 😉 bsky.app/profile/tomh...
18.12.2025 08:35
👍 1
🔁 0
💬 2
📌 0
mastodon.social/@65dBnoise/1...
18.12.2025 06:12
👍 0
🔁 0
💬 0
📌 0
Yep, I mentioned it in the ALT text, but either bsky dropped it or I haven't grokked how to access it for videos
bsky.app/profile/shar...
18.12.2025 05:44
👍 1
🔁 0
💬 0
📌 0
The only thing missing is the rover looking "up" and doing a 360 right at the end 😉
18.12.2025 05:42
👍 2
🔁 0
💬 0
📌 0
Fig. 7 of the linked paper: "Schematic diagram of proposed formation and evolution of the Margin unit."
There's also a reference to a new paper on the margin unit, with an excellent sketch of its proposed formation and alteration.
Williford et al : "Carbonated ultramafic igneous rocks in Jezero crater"
www.science.org/doi/10.1126/...
#PlanetSci #PlanetaryScience #JezeroDeltaScience
18.12.2025 05:22
👍 8
🔁 1
💬 1
📌 0
Superb video included in today's JPL update for #PerseveranceRover (www.jpl.nasa.gov/news/nasas-p...). With synthetic frames and obviously, the rover doesn't move that fast, but the final result is impressive.
Credit: NASA/JPL-Caltech
18.12.2025 05:17
👍 87
🔁 31
💬 5
📌 5
Digital painting of a Martian crater rim breached by a rushing water mass. Jezero eons ago?
From 2024: "Breach"
Finger- and styluspainted on tablet with #SketchbookApp
#ArtAdventCalendar
18.12.2025 05:10
👍 7
🔁 2
💬 1
📌 0
A smiling bearded man, in leisure clothing & NY Yankees baseball cap, poses in front of a huge piece-of-cake shaped rock, the Hoba meteorite in Namibia.
The painting is captioned "Yet another caption", an inside joke, alluding to the fact that each time I've seen the reference photo (feeds, books...) it comes with a different, often witty caption.
From2022: "Planetary Defender" (with @asrivkin.bsky.social and the Hoba meteorite)
Fingerpainted on tablet with #SketchbookApp
#ArtAdventCalendar
17.12.2025 06:01
👍 3
🔁 1
💬 1
📌 0
Unusual “witch hat” or “helmet-shaped” rock composed entirely of smaller spherules. The image was taken by the NASA rover Perseverance on Mars.
Source: https://science.nasa.gov/blog/shocking-spherules/
https://jackiebranc.site/nasas-perseverance-rover-journey/
Unusual “helmet-shaped” rock composed entirely of smaller spherules. This image was taken by NASA's Perseverance rover on Mars.
This image is also up for the planetary science image of 2025: bsky.app/profile/spac...
NASA/JPL-Caltech/ASU/ @jackiebranc.site
#SciComm 🧪
16.12.2025 18:17
👍 17
🔁 5
💬 2
📌 0
An imagined pencil-drawn science paper figure displaying 4 examples of individual Martian spherules. The ones on the left as observed by Opportunity: a smooth "blueberry" and a layered concretion. The ones on the right as observed by Perseverance on the St Pauls Bay rock, possibly impact spherules: a bead shaped one and a slightly larger "deflated" one.
"Martian Spherules"
Stylusdrawn on tablet with #SketchbookApp
#ArtAdventCalendar
16.12.2025 05:33
👍 3
🔁 1
💬 1
📌 0
