Here's the animated version with all 3 photos: - pre-impact - 2021 with the fresh crater and rays - 2024 with a darkened aspect (may be due to the lightning too)
The costs have of course continued to head to orbit, so further donations are most welcome as I've had to dig deep into my retirement savings.... www.gofundme.com/f/fund-jonat...
Donate to Fund Jonathan's Space Report Library Transition, organized by Jonathan McDowell
UPDATE: Good news! I have acquired a home for the library and renova… Jonathan McDowell needs your support for Fund Jonathan's Space Report Library Transition
gofundme.com
Proud of a (Mar)tiny 🙃 contribution to this paper: the location for the 3rd photo in fig. S6 of the supplement info.
Repurposing mission debris | Is space debris left behind on other planets and moons just waste, or can it be repurposed as a scientifically viable experiment? We asked ourselves that question in a recent study in @agu.org Geophysical Research Letters. agupubs.onlinelibrary.wiley.com/doi/10.1029/...
Repurposing mission debris | Is space debris left behind on other planets and moons just waste, or can it be repurposed as a scientifically viable experiment? We asked ourselves that question in a recent study in @agu.org Geophysical Research Letters. agupubs.onlinelibrary.wiley.com/doi/10.1029/...
agupubs.onlinelibrary.wiley.com
We got clouded out of the partial maximum, but we were at least treated to some sundogs at the start. Mr Son had better luck further up North (4th photo).
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
Another one from the Kyle of Durness - black and white seemed to be in order for this one. #Scotland #DronePhotography
Perseverance sol 1446 (around Sally's Cove) / Statler mars.nasa.gov/mars2020/mul... with processing from 65dBnoise (mastodon.social/@65dBnoise/1...) 13/n #muppetdolia
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.
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
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 🧪
To sum up iopscience.iop.org/article/10.3... - the initial spacecraft astrometry of 3I/ATLAS substantially improves its orbit determination - this helped show that 3I/ATLAS has a significant non-gravitational acceleration & - indicates 3I is significantly less massive than originally supposed.
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iopscience.iop.org
Cut of the original video with the #3IATLAS cameo. The video is reversed, I find it easier to find it with it going from right to left. Its path starts below the saturated region on the middle right and goes in a slight diagonal towards the left.
Jennifer Scully, @spacewhalerider.com, et al. suggest that bright material in Wunda crater on Umbriel could be a brine / salt deposit like Occator crater on Ceres, rather than cold-trapped CO2 or other ice: meetingorganizer.copernicus.org/EPSC-DPS2025.... Huh. Need more data. #EPSCDPS2025
"Neretva Lake" Styluspainted on tablet with #SketchbookApp #ArtAdventCalendar #ArtAdventCalendar2025
The "translucent ripples" effect, I hadn't felt it since the Valinor ripples where Ingenuity now lays.
#JezeroAstrotourists thus far in bsky
For today's #ArtAdventCalendar, the "astrotourists in Jezero crater" series From 2022, 2023 & 2024 : "Dasein", "Tourist at Kodiak", "Map of the Jezero Delta, Tolkien-style", "Not My Best Side" All finger- or styluspainted on tablet with #SketchbookApp
Snodgrass et al: "Considerations on the process of target selection for the @cometinterceptor.bsky.social mission" arxiv.org/abs/2511.20521 #PlanetSci #PlanetaryScience #CometInterceptorMission
Hey #planetSci friends, the end of the year is nearing. Does anyone want to help me put together an Image of the Year Bracket? If you want to propose your favourite planetary science image of 2025, place it below with a link to the source and when it was published.
@wierzchos.bsky.social qué sorpresa encontrarte referido en un paper sobre coatings en Marte, se me había olvidado a lo que se dedicaba tu padre 😉 onlinelibrary.wiley.com/doi/10.1111/... agupubs.onlinelibrary.wiley.com/doi/10.1029/...
Microbial colonization of Ca‐sulfate crusts in the hyperarid core of the Atacama Desert: implications for the search for life on Mars
The scarcity of liquid water in the hyperarid core of the Atacama Desert makes this region one of the most challenging environments for life on Earth. The low numbers of microbial cells in the soils ...
onlinelibrary.wiley.com
Yesterday Curiosity took pix of jagged peaks in the distance with its ChemCam. I stitched them together, did some work on them, and... just look at that view... I've been doing this since Sojourner landed & this is one of my fave images ever... Credits: NASA/JPL-Caltech/LANL/S Atkinson
Quick & dirty animation of pre- and post-abrasion WATSON photos by #PerseveranceRover on sols 1630 & 1631. Based on treated images by 65dBnoise: mastodon.social/@65dBnoise/1... mastodon.social/@65dBnoise/1...
I've been asked a few times over the last few days what I think the chances are that the "leopard spots and poppy seeds" on Mars will turn out to be actual evidence of life. People are naturally skeptical given the history of possible signs of life on other planets. Strap in: long thread ahead...
After poking around and finding the base of the flow, the story became much richer: the basalt had flowed over some eolian dunes which sourced the water for the hydrothermal system. The sand might have accumulated as obstacle dunes around a bedrock hill, then buried by the flow in a valley. (2/2)
The IAU announced official names for Donaldjohanson's surface & shape features 2 weeks ago, but nobody has mentioned the news. They're all named after archeological sites and hominin fossils, which is fun and awesome haha (Afar Lobus = small lobe, Olduvai Lobus = big lobe, Windover Collum = neck)