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Holger Isenberg @areoinfo.bsky.social · 5h

Same-shaped rock in like a hand-axe, there even at the typical size of those, with conchoidal fractures was seen directly at the Mars Insight Lander location: www.jpl.nasa.gov/edu/resource...

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Holger Isenberg @areoinfo.bsky.social · 5h

The first black wedge-shaped rock with its concave conchoidal fractures on the surface looks like a hand axe! en.wikipedia.org/wiki/Hand_axe

Hand axe - Wikipedia

en.wikipedia.org

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Holger Isenberg @areoinfo.bsky.social · 5h

... is not reacting to the rapid changes in the space-faring technology happening the recent years. They could consider to make their probes fit into the Falcon 9 which launches 3 times a week now and is able to bring small probes into Mars transfer trajectory. www.lpi.usra.edu/mepag/

MEPAG is responsible for providing the science input needed to plan and prioritize Mars exploration activities and serves as a community-based, interdisciplinary forum for inquiry and analysis in supp...

www.lpi.usra.edu

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Holger Isenberg @areoinfo.bsky.social · 5h

Currently at @themarssociety.bsky.social
convention at USC: Mars Society President Robert Zubrin pointing out towards NASA Mars Exploration Program Analysis Group Chair Victoria Hamilton how their program contains many fixed ideas about what could be found in Mars and ...

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Holger Isenberg @areoinfo.bsky.social · 6h

... part of the on-board wet chemistry lab on Mars Curiosity Rover (not on Perseverance) and no information is available how many have already been used since 2012. 📷 www.science.org/content/arti...

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Holger Isenberg @areoinfo.bsky.social · 6h

... how the Mars rover's on board chemistry lab could be re-utilized for investigating further the unexpectedly found organic chemistry substances like fatty acids (long hydrocarbon chains) which hint to extend life on Mars. I'm wondering about the status of the 9 wet chemistry cups which are …

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Holger Isenberg @areoinfo.bsky.social · 6h

A few minutes ago at @themarssociety.bsky.social convention: Curiosity Rover Deputy Project Scientist for Project Scientist Ashwin Vasavada hearing Steven Benner's (renowned biochemist en.wikipedia.org/wiki/Steven_...) and Robert Zubrin's (Mars Society President) questions about …

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Holger Isenberg @areoinfo.bsky.social · 1d

Edwin Kite, Associate Prof. at UChicago and at the astera.org Institute, followed today about localized surface-heat reflecting shields created by engineered micrometer-sized particles to warm up the surface, i.e. acting similar to the water droplets in clouds.

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Holger Isenberg @areoinfo.bsky.social · 1d

Hoppy Price from JPL later in the morning: The Mars Sample Return is not only blocked by the funding discussion, but also by NEPA (National Environmental Policy Act of 1969) www.nasa.gov/nepa-mars-sa... Good news: JPL has funding for developing alternatives to Plutonium as source for RTGs.

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Holger Isenberg @areoinfo.bsky.social · 1d

With Robert Zubrin's talk yesterday the International Mars Society Convention has begun at USC in Los Angeles! Program for today and Saturday on marssociety.org

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Holger Isenberg @areoinfo.bsky.social · 7d

Another try to capture 3I/Atlas was scheduled with the Navcam on Perseverance Mars Rover a few hours ago. The bright spot on the left is the moon Phobos with -6.5 magnitude. 2025-10-04 06:13:44 UTC. The exact UTC time when images were taken is shown below each image on areo.info/mars20/ecams... .

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Holger Isenberg @areoinfo.bsky.social · 12d

Experiment: UV light moves sand magnitudes farther than previous assumptions allow. Albedo differences like Reiner Gamma are still actively sustained. Relates to the lunar dust detector LDEX on LADEE. "The dust environment of airless planetary bodies", Horányi, Szalay, Wang.
📷 youtu.be/c9baLqhjNAw

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Holger Isenberg @areoinfo.bsky.social · 15d

Water clouds (liquid or ice) yesterday on Mars. Clear skies 5 days earlier. The panorama shows haze on the horizon and a bonus dust devil. On areo.info/mars20/ecams... in HDR or with the areoHDR app, more clouds are visible in other images from that day which are overexposed white in non-HDR.

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Reposted by Holger Isenberg

The Mars Society @themarssociety.bsky.social · Sep 11

Program itinerary released! Don’t miss the 2025 Mars Society Convention Oct 9–11 at USC. Big names. Big ideas. Big step toward Mars. Visit marssociety.org for full details, including how to register. #spaceadvocacy #humanstomars #marsexploration #mars2025

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Holger Isenberg @areoinfo.bsky.social · 19d

New images a day later now from the same weird rock on Mars as seen on mission day 1630 yesterday. This time treated with the 5cm diameter rock abrasion tool. More: areo.info/mars20/ecams...

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Holger Isenberg @areoinfo.bsky.social · 21d

Perseverance Rover reached a location on Mars which rises rock weirdness to a new level! Pattern like roots or splattered liquid glass and patches imitating lichens. The red material didn't move during brush cleaning by the robot. More from the same day Sep 20, 2025 on areo.info/mars20/ecams...

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Holger Isenberg @areoinfo.bsky.social · 28d

Dark shadow over Perseverance Rover on mission day 1622, Sep 11, 2025 US timezones. Both images are from the same day viewing west outside Jezero Crater shortly after sun rise and at noon. More images and better in HDR: areo.info/mars20/ecams...
Image times: 2025-09-12 00:18:55 UTC & 08:10:12 UTC

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Holger Isenberg @areoinfo.bsky.social · 29d

No geologists here who wondered?

Holger Isenberg @areoinfo.bsky.social · Sep 11

Many more images from the Sapphire Canyon sample location on the 1m size Cheyava Falls boulder with the white stripes are available in HDR (on Macbooks with Chrome, Edge or Opera) on areo.info/mars20 and with the areoHDR iPad & iPhone app between mission days (sols) 1188 and 1218.

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Holger Isenberg @areoinfo.bsky.social · Sep 11

Where's the expected V-shape for a water-eroded valley as we know it from Earth? I clearly see a U-shape here, which is commonly related to glacier activity on Earth. I guess we can exclude glaciers at those latitudes on Mars. What was going on? U-shape explained: www.youtube.com/watch?v=prf7...

Glacial trough: describe and explain

YouTube video by Johngraphy

www.youtube.com

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Holger Isenberg @areoinfo.bsky.social · Sep 10

Some more pictures showing the U-shaped Sapphire Canyon where the leopard spot rock was found discussed today in the press conference:
areo.info/mars20/ecams... and areo.info/mars20/ecams...

Holger Isenberg @areoinfo.bsky.social · Sep 9

For a large context 3d overview of the rover location while the sample drilling and analysis was made during the July 4, 2024 week, around mission day 1197, I recommend perseverancerover.spatialstudieslab.org

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Holger Isenberg @areoinfo.bsky.social · Sep 8

Press conf details: nasa.gov/news-release...

Video from 2024 showing the sample details: science.nasa.gov/resource/mee...

All 5 images calibrated by my system, available in HDR with Chrome, Opera & Edge on Macbooks at areo.info/mars20/ecams... or areoHDR app on iPhone & iPad or Vision Pro.

Holger Isenberg @areoinfo.bsky.social · Sep 8

NASA to Share Details of New Perseverance Mars Rover Finding in press conference Wednesday Sep 10, 11am EDT. Links below in thread. It's about this 1m long boulder analyzed around July 4, 2024 at the site named Sapphire Canyon where hydrocarbons and mm-sized black and bright spots were found.

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Holger Isenberg @areoinfo.bsky.social · Sep 5

The exact same article is now also available.on free substack: areoinfo.substack.com/giza-center-of-earth

Giza, Center of Earth?

Answering the question of whether the Giza Pyramids are located in the geographic center of the Earth. Original 2003 article with more precise results in 2025 addendum.

areoinfo.substack.com

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