Holger Isenberg
@areoinfo.bsky.social
Those tiny sand dunes on Mars in front of the half meter diameter wheels are actually moved around today by the local wind with being heaped up from fine dust. But the larger ones next to them are permanent and have a hardened surface the rover sometimes breaks through. 📷 areo.info/mars20/ecams...
December 9, 2025 at 7:36 PM
Those tiny sand dunes on Mars in front of the half meter diameter wheels are actually moved around today by the local wind with being heaped up from fine dust. But the larger ones next to them are permanent and have a hardened surface the rover sometimes breaks through. 📷 areo.info/mars20/ecams...
Sand grains with central holes in them can be found in this image by Perseverance Rover on Mars. Grainsize most likely 3mm. 2nd img Earth: concretions from cyanobacteria. 3rd img Earth: eroded corals. 📷 areo.info/mars20/ecams... and geo.mtu.edu/KeweenawGeoh... and en.wikipedia.org/wiki/Sand
December 8, 2025 at 9:56 PM
Sand grains with central holes in them can be found in this image by Perseverance Rover on Mars. Grainsize most likely 3mm. 2nd img Earth: concretions from cyanobacteria. 3rd img Earth: eroded corals. 📷 areo.info/mars20/ecams... and geo.mtu.edu/KeweenawGeoh... and en.wikipedia.org/wiki/Sand
Some colorful Mars rocks with unusual scratches or gouges continuing through small pebbles. In HDR on
areo.info/mars20/ecams... or with the areoHDR iPhone / iPad app the colors the colors are even better. Mission day 1600, August 20, 2025.
areo.info/mars20/ecams... or with the areoHDR iPhone / iPad app the colors the colors are even better. Mission day 1600, August 20, 2025.
December 6, 2025 at 12:47 AM
Some colorful Mars rocks with unusual scratches or gouges continuing through small pebbles. In HDR on
areo.info/mars20/ecams... or with the areoHDR iPhone / iPad app the colors the colors are even better. Mission day 1600, August 20, 2025.
areo.info/mars20/ecams... or with the areoHDR iPhone / iPad app the colors the colors are even better. Mission day 1600, August 20, 2025.
The SOHO spacecraft is most famous for its LASCO C2 / C3 cameras which have discovered over 4000 comet now, mostly from the Kreutz Comet Stream. But there was another important discovery...
December 2, 2025 at 11:35 PM
The SOHO spacecraft is most famous for its LASCO C2 / C3 cameras which have discovered over 4000 comet now, mostly from the Kreutz Comet Stream. But there was another important discovery...
On Opportunity Rover, adhesion of fine dust was observed, but here on Perseverance now I don't think fine dust can explain it. The larger amount on top of Opportunity's wheels was only possible while the wheel was sunken deep into the soil. 📷 link.springer.com/article/10.1...
November 30, 2025 at 2:11 AM
On Opportunity Rover, adhesion of fine dust was observed, but here on Perseverance now I don't think fine dust can explain it. The larger amount on top of Opportunity's wheels was only possible while the wheel was sunken deep into the soil. 📷 link.springer.com/article/10.1...
The map is also usable already since a few months in the free jmars.asu.edu @jmars-gis.bsky.social app. The only tool outside of the original China Space Agency website which has integrated the map. To add it: "Add Layer" and search for "Tianwen", then add the "Color Stretcher" for more contrast.
November 29, 2025 at 9:58 PM
The map is also usable already since a few months in the free jmars.asu.edu @jmars-gis.bsky.social app. The only tool outside of the original China Space Agency website which has integrated the map. To add it: "Add Layer" and search for "Tianwen", then add the "Color Stretcher" for more contrast.
The global color Mars map from China's Tianwen-1 MoRIC (medium res camera) is back online! On clpds.bao.ac.cn/service/#/ma... as 46 GB TIFF behind icon on the right side. Scientific article about this map, the only complete Mars color map since the Viking Orbiters: sciencedirect.com/science/arti...
November 29, 2025 at 9:52 PM
The global color Mars map from China's Tianwen-1 MoRIC (medium res camera) is back online! On clpds.bao.ac.cn/service/#/ma... as 46 GB TIFF behind icon on the right side. Scientific article about this map, the only complete Mars color map since the Viking Orbiters: sciencedirect.com/science/arti...
Ancient megalithic toilets with water & underground sewer in Machu Picchu and Pisac vs palaces in Vienna and Versailles without any plumbing at all inside the buildings. Houses in Rome and Pompeii also had water pipes. en.wikipedia.org/wiki/Palace_..., en.wikipedia.org/wiki/Hofburg, photos.areo.info
November 29, 2025 at 8:20 PM
Ancient megalithic toilets with water & underground sewer in Machu Picchu and Pisac vs palaces in Vienna and Versailles without any plumbing at all inside the buildings. Houses in Rome and Pompeii also had water pipes. en.wikipedia.org/wiki/Palace_..., en.wikipedia.org/wiki/Hofburg, photos.areo.info
Electric mountain shaping processes scale well on Earth and Mars. This tiny 10cm high vertical rock wall on Mars is in geological origin identical to its larger km-long twin in New Mexico. 📷 youtube.com/watch?v=bINo... and Perseverance Rover mission day 721 March 1 2023: areo.info/mars20/ecams...
November 28, 2025 at 8:18 PM
Electric mountain shaping processes scale well on Earth and Mars. This tiny 10cm high vertical rock wall on Mars is in geological origin identical to its larger km-long twin in New Mexico. 📷 youtube.com/watch?v=bINo... and Perseverance Rover mission day 721 March 1 2023: areo.info/mars20/ecams...
The microphone on the Perseverance Rover on Mars which captured the crackling sound of the small lightning bolt next to the rover, visible in this photo from today's mission day 1697. It's left below the large SuperCam lens. Processed image source: areo.info/mars20
November 28, 2025 at 6:39 PM
The microphone on the Perseverance Rover on Mars which captured the crackling sound of the small lightning bolt next to the rover, visible in this photo from today's mission day 1697. It's left below the large SuperCam lens. Processed image source: areo.info/mars20
With this confirmation of atmospheric electric discharges measured only 2m away from Perseverance Rover, the source of perchlorates on Mars is obvious: electrochemistry in the atmosphere. Is it only a thin layer of on the surface in that dry environment without rain so it can be easily scraped off?
November 27, 2025 at 12:11 AM
With this confirmation of atmospheric electric discharges measured only 2m away from Perseverance Rover, the source of perchlorates on Mars is obvious: electrochemistry in the atmosphere. Is it only a thin layer of on the surface in that dry environment without rain so it can be easily scraped off?
The areoHDR iPhone / iPad app with all engineering camera images and Mars calendar from NASA Perseverance Rover and Ingenuity Helicopter is now available in French, Spanish, German and of course still in English as well. apps.apple.com/app/areohdr/...
November 26, 2025 at 8:14 PM
The areoHDR iPhone / iPad app with all engineering camera images and Mars calendar from NASA Perseverance Rover and Ingenuity Helicopter is now available in French, Spanish, German and of course still in English as well. apps.apple.com/app/areohdr/...
The sticky soil which glued like wet clay on the wheel inside and outside earlier this week on day 1688 may now be analyzed as I see they checked at least the ground in front of the rover. Unusual extremely black small grains can be seen in the 5cm diameter ground area areo.info/mars20/ecams...
November 26, 2025 at 8:10 PM
The sticky soil which glued like wet clay on the wheel inside and outside earlier this week on day 1688 may now be analyzed as I see they checked at least the ground in front of the rover. Unusual extremely black small grains can be seen in the 5cm diameter ground area areo.info/mars20/ecams...
The Perseverance Rover driver deserves an award for best shadow image planning :) Here's the rover head shadow looking at the sticky stuff glued inside the wheel rim it won't be able to analyze. Or can it? Day 1692 today. More images from that mission day: areo.info/mars20/ecams...
November 23, 2025 at 11:07 PM
The Perseverance Rover driver deserves an award for best shadow image planning :) Here's the rover head shadow looking at the sticky stuff glued inside the wheel rim it won't be able to analyze. Or can it? Day 1692 today. More images from that mission day: areo.info/mars20/ecams...
A 2nd instance of the rectifier relief may exists as in the 1992 book by Peter Krassa, "Das Licht der Pharaonen - Hochtechnologie und elektrischer Strom im alten Ägypten", fig.27 shows this similar but not identical relief. That it is a photo of a modern reproduction can neither be excluded.
November 23, 2025 at 4:08 AM
A 2nd instance of the rectifier relief may exists as in the 1992 book by Peter Krassa, "Das Licht der Pharaonen - Hochtechnologie und elektrischer Strom im alten Ägypten", fig.27 shows this similar but not identical relief. That it is a photo of a modern reproduction can neither be excluded.
More sticky stuff today (1690). It resisted being scraped by a rock sliding around inside the wheel. This type of adhesive dirt on Mars was never seen before. I still think it is clay which can contain much water, here most likely brine, inside its nano-pores and layers. 📷https://areo.info/mars20
November 21, 2025 at 8:02 PM
More sticky stuff today (1690). It resisted being scraped by a rock sliding around inside the wheel. This type of adhesive dirt on Mars was never seen before. I still think it is clay which can contain much water, here most likely brine, inside its nano-pores and layers. 📷https://areo.info/mars20
The soil also shows strong adhesion to the inside of the wheel where usually it would immediately fall down to the bottom. Image from the same day 1688.
November 21, 2025 at 1:11 AM
The soil also shows strong adhesion to the inside of the wheel where usually it would immediately fall down to the bottom. Image from the same day 1688.
Unusual sticky soil on the half meter diameter wheel of Perseverance Rover on Mars today mission day 1688. It appears to have the consistency of wet clay.
areo.info/mars20/ecams...
areo.info/mars20/ecams...
November 19, 2025 at 7:24 PM
Unusual sticky soil on the half meter diameter wheel of Perseverance Rover on Mars today mission day 1688. It appears to have the consistency of wet clay.
areo.info/mars20/ecams...
areo.info/mars20/ecams...
Name that Hill! From Mars Perseverance Rover mission day 1686 today. More and better in HDR on areo.info/mars20 or with the areoHDR iPhone app.
November 17, 2025 at 4:56 PM
Name that Hill! From Mars Perseverance Rover mission day 1686 today. More and better in HDR on areo.info/mars20 or with the areoHDR iPhone app.
Weird triple correlation of the day: 1. At 178m above today's sea level a water wave erosion pattern at the Khafre Pyramid. 2. At the same elevation, whale skeletons can be found in the desert at Wadi Al Hitan. 3. At that elevated ocean level, the geographic center of all land on Earth is Giza...
November 13, 2025 at 6:38 AM
Weird triple correlation of the day: 1. At 178m above today's sea level a water wave erosion pattern at the Khafre Pyramid. 2. At the same elevation, whale skeletons can be found in the desert at Wadi Al Hitan. 3. At that elevated ocean level, the geographic center of all land on Earth is Giza...
About ionizing radiation effects on humans during a trip to Mars the Mars Matters channel provides great explanations and describes the 5 different sources of radiation in space in detail. Sending a tobacco smoker without cigarettes to Mars would even decrease his cancer risk.
youtu.be/VluEllUrseE
youtu.be/VluEllUrseE
November 11, 2025 at 7:17 PM
About ionizing radiation effects on humans during a trip to Mars the Mars Matters channel provides great explanations and describes the 5 different sources of radiation in space in detail. Sending a tobacco smoker without cigarettes to Mars would even decrease his cancer risk.
youtu.be/VluEllUrseE
youtu.be/VluEllUrseE
Some group at NASA decided in 2021 for a 600 mSv career-long radiation dose limit for all their astronauts, disregarding biological diversity, age, and reproductive health effect differences! That's not science. 📷 nasa.gov/wp-content/u... and nationalacademies.org/news/2021/06...
November 11, 2025 at 7:15 PM
Some group at NASA decided in 2021 for a 600 mSv career-long radiation dose limit for all their astronauts, disregarding biological diversity, age, and reproductive health effect differences! That's not science. 📷 nasa.gov/wp-content/u... and nationalacademies.org/news/2021/06...
...Hannes Alfvén the inventor of it as Magnetohydrodynamics recommended in his lecture at his Nobel Price in Physics for it in 1970 to replace it with a model incorporating electric currents and double layers as shaping forces which create magnetic fields dynamically. nobelprize.org/prizes/physi...
November 9, 2025 at 11:06 PM
...Hannes Alfvén the inventor of it as Magnetohydrodynamics recommended in his lecture at his Nobel Price in Physics for it in 1970 to replace it with a model incorporating electric currents and double layers as shaping forces which create magnetic fields dynamically. nobelprize.org/prizes/physi...
... Those umbrella-like rays are real anti-tails, not reflected light on particles on the comet's trajectory. Images from "Atlas of Cometary Forms - 1969", text description of the umbrella-like rays from Devan Asoka Mendis "On the hydromagnetic model of comets - 1977" ...
November 9, 2025 at 11:06 PM
... Those umbrella-like rays are real anti-tails, not reflected light on particles on the comet's trajectory. Images from "Atlas of Cometary Forms - 1969", text description of the umbrella-like rays from Devan Asoka Mendis "On the hydromagnetic model of comets - 1977" ...
Comet 3I/Atlas shows in this photo a surprising effect for believers in the outdated outgassing ice ball comet theory: Collimated rays at an angle to the sun-comet line, pointing towards the sun, arrow on the left...
📷2025-11-08 04:10 UTC: M. Jäger, G. Rhemann, E. Prosperi x.com/Komet123Jage...
📷2025-11-08 04:10 UTC: M. Jäger, G. Rhemann, E. Prosperi x.com/Komet123Jage...
November 9, 2025 at 11:06 PM
Comet 3I/Atlas shows in this photo a surprising effect for believers in the outdated outgassing ice ball comet theory: Collimated rays at an angle to the sun-comet line, pointing towards the sun, arrow on the left...
📷2025-11-08 04:10 UTC: M. Jäger, G. Rhemann, E. Prosperi x.com/Komet123Jage...
📷2025-11-08 04:10 UTC: M. Jäger, G. Rhemann, E. Prosperi x.com/Komet123Jage...