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Simeon Schmauß

@stim3on.bsky.social

4.2K followers 650 following 1.2K posts

dabbling with photogrammetry, astrophotography, GIS and more... https://sschmaus.github.io/links/

sschmaus.github.io

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Simeon Schmauß @stim3on.bsky.social · May 11

Perseverance captured a new selfie to celebrate 1500 Sols on Mars.
The rover is currently investigating the outer rim of Jezero crater near an outcrop named Sally's Cove. #planetsci

Full panorama: www.360cities.net/image/persev...

Credit: NASA/JPL-Caltech/MSSS/Steve Albers/Simeon Schmauß

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Simeon Schmauß @stim3on.bsky.social · 7h

Well, he just quoted with a correction. Maybe he just missed the comments before.

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Reposted by Simeon Schmauß

Tom Gauld @tomgauld.bsky.social · 12h

One of the cartoons in my new book 'Physics for Cats' which is out now in the UK, USA, Canada, France and Germany. Order from your local bookshops or online: www.tomgauld.com/

Two beetles on a stick.
One beetle says to the other "Do you ever get the feeling we are being observed by another lifeform"
Zoom out to reveal that they are in a glass case with two scientists studying them.
One scientist says to the other "Do you ever get the feeling we are being observed by another lifeform"
Zoom out into space. Abouard a spaceship, two aliens watch the scientists on a screen.
One alien says to the other "Do you ever get the feeling we are being observed by another lifeform"
The aliens turn to look out at the reader.

Text below the cartoon reads:
From 'Physics for Cats' by Tom Gauld. Preorder it at www.tomgauld.

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Simeon Schmauß @stim3on.bsky.social · 7h

*the other Paul

Simeon Schmauß @stim3on.bsky.social · 7h

Maybe it's one of his elaborate Mars jokes and we are all not getting it... 🤷‍♂️

Please check your comments Paul.

Reposted by Simeon Schmauß

ESA Space Science @science.esa.int · 17h

👶🌟 ICYMI, Gaia released the most accurate 3D map of stellar nurseries in the Milky Way.

The map extends 4000 light-years from us, with the Sun at the centre.

Explore it here 👉 https://f.mtr.cool/lkkmqlzqih 🔭

This image captures a richly detailed section of the Milky Way, showcasing a tapestry of stars and glowing nebulas. Against a deep black cosmic backdrop, countless white stars sparkle like scattered diamonds. Wisps of reddish-pink nebulas drift across the scene, forming delicate tendrils and cloud-like structures.

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Reposted by Simeon Schmauß

Melina Thévenot🏳️‍⚧️ @melina-iras07572.bsky.social · 1d

Planet #Uranus 🪐 and inner moons with #JWST NIRCam 🔭 #planetsci Observation from this Monday (lol moon🌕day).

Filters: F150W2; F162M
Date: 2025-10-06 between 02:15:43 UT and 04:46:47 UT

Program: www.stsci.edu/jwst-program...

Uranus with rings and small elongated dots (tracks) around it.

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Reposted by Simeon Schmauß

Melaine Le Roy @subfossilguy.bsky.social · 1d

Nest Glacier on the north face of Bietschhorn (3934 m) tonight! 🧊🤩

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Reposted by Simeon Schmauß

Kevin M. Gill @kevinmgill.bsky.social · 1d

The comet 81P/Wild on January 2nd 2004 when it was visited by NASA’s Stardust mission. This is a composite of two images showing the comet itself and the surrounding halo.

flic.kr/p/2rymPvE

A gray planetary body with craters, some deep. A halo with jets surrounds it.

NASA/JPL-Caltech/Cornell/Kevin M. Gill

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Reposted by Simeon Schmauß

Habu @flyinghabu.bsky.social · 1d

Two nights of 3:45am alarms, blazing full moon lighting the sky like daytime and washing out the light of everything else, comet included. Then two days of post-processing battles, as comet processing is maddeningly tricky.

But I finally pulled it off: here is C/2025 A6 Lemmon. 🔭

#Astrophotography

Comet C/2025 A6 Lemmon taken from my backyard

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Reposted by Simeon Schmauß

Energia-Buran Archive @buranarchive.space · 1d

A tour visiting one of the low bays of the Rocket Assembly and Test Facility (MIK RN) at Baikonur's site 112.

A beautiful selection of Energia strap-on booster segments on view!

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Simeon Schmauß @stim3on.bsky.social · 1d

I'm pretty certain we can see it in processed Mastcam-Z images though

Simeon Schmauß @stim3on.bsky.social · 6d

Last night, NASA's Perseverance rover looked up at the night sky once more, to capture interstellar #comet 3I/Atlas flying by the red planet.

The distance was "only" 0.2 AU or 30 Mio km, far closer than the comet ever got to Earth. 🔭 #3IAtlas

Credit: NASA/JPL-Caltech/ASU/Simeon Schmauß

Simeon Schmauß @stim3on.bsky.social · 1d

Hi Paul, that streak in the Navcam image is Phobos, 3I/Atlas is way darker and not visible in these images.

See here for my processed version and comparison to Stellarium:

Simeon Schmauß @stim3on.bsky.social · 4d

Short version: left is my processesed Navcam image, right is the Stellarium simulation for the image.
The bright elongated thing is Phobos being smeared by long exposure.
Acturus and the big dipper stars are also visible. 3I/Atlas is wayyy to dim to be seen in the image.

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Simeon Schmauß @stim3on.bsky.social · 1d

Not sure to be honest. But since it is perfectly horizontal and pretty homogenous I'd suspect some kind of sensor or stacking artefact.

Simeon Schmauß @stim3on.bsky.social · 1d

Yes, that's the article I shared above, what are you asking?

Simeon Schmauß @stim3on.bsky.social · 1d

I agree with you on that and I'm glad he didn't push any UFO theories on these images.
But these silent edits also suggest he is trying to cover up his mistakes instead of owning them.

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Simeon Schmauß @stim3on.bsky.social · 1d

When confronted with someone like Loeb, it is hard for me to stay serious. I already expected this kind of silent edits might happen, and I think it's necessary to call him out for it given his political involvements.

That said, I would like to apologize for my unprofessional tone above.

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Simeon Schmauß @stim3on.bsky.social · 1d

Glad I immediately archived his post on October 6th, so see for yourself:
web.archive.org/web/2/https:...

This is the latest version:
web.archive.org/web/20251009...

Simeon Schmauß @stim3on.bsky.social · 1d

He also added a passage speculating the streak could have been Phobos or Deimos, making it seem as if he came to that conclusion himself. (You're welcome Avi!)

Absolutely no indication was given that edits were made to the post.

Maybe he can fool his congressperson friends, but he can't fool me!

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Simeon Schmauß @stim3on.bsky.social · 1d

Ha! It looks like Avi Loeb silently edited his Medium post about the Perseverance Navcam images, after being called out for his wrong interpretation.
While he previously claimed the image was of 3I/Atlas, he now says the claim came from "social media". 🔭

A paragraph about the Navcam image that claimed the image is of 3I/Atlas was edited to say "This was claimed on social media to be an image" of the comet

A paragraph that previously only mentioned the object creating the source could be much closer to the camera than Atlas was extended with a speculation that it could be one of the Martian moons.

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Simeon Schmauß @stim3on.bsky.social · 1d

Well, if you read the image description on his medium article, he leaves little doubt that it is showing 3I/Atlas.
And his interpretation in the article text doesn't even attempt to look for alternative explanations other than 3I/Atlas, leaving most readers thinking it is indeed the comet.

Screenshot from
https://avi-loeb.medium.com/interpretation-of-the-stripe-in-the-new-image-of-3i-atlas-from-the-perseverance-rover-camera-7c5332c60ff1

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Reposted by Simeon Schmauß

RedSPMN @redspmn.bsky.social · 1d

LAS ÚLTIMAS NOTICIAS SOBRE EL COMETA #31ATLAS LLEGAN DESDE MARTE: Artículo divulgativo donde se desmontan rumores sobre su naturaleza y se actualizan los últimos descubrimientos. Por el Dr. @joseptrigo.bsky.social @csic.es @ieec.cat en @es.theconversation.com:☄️
➡️ theconversation.com/las-ultimas-...

Las últimas noticias sobre el cometa extrasolar 3I/ATLAS llegan desde Marte

Entre otras novedades, las imágenes enviadas por diversas sondas que orbitan el planeta rojo desmontan definitivamente el rumor de que el visitante es de naturaleza artificial.

theconversation.com

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Simeon Schmauß @stim3on.bsky.social · 1d

Thanks for the notice!
This kind of fact based article is desperately needed when most outlets just echoed Avi's wild theories...

Reposted by Simeon Schmauß

ESA Space Science @science.esa.int · 2d

🆕Researchers combed through images from ESA's #MarsExpress & #ExoMars spacecraft to find 1039 swirling dust devils 🌪️

Using these dust devils to track raging winds on Mars, their findings include that the strongest winds blow much faster than we thought!

Read more 👉 www.esa.int/Science_Expl... 🧪 ☄️

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Simeon Schmauß @stim3on.bsky.social · 2d

Pretty much yeah, a dot with a halo around it.
There is a lot of scientific potential in it, but anyone who promises 4K images of that comet is not well informed.

We might get something slightly more interesting later when the JUICE spacecraft will observe 3I/Atlas during it's peak of activity.

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Reposted by Simeon Schmauß

CosmicRami 🏳️‍🌈🏳️‍⚧️ @cosmicrami.com · 4d

There is an important conversation that should be going on (maybe at the UN level?) about this, as it will become worse with time (as more satellites are orbited).

Nations worked together to build the Montreal Protocol to protect the Ozone Layer.

These constellations threaten all of that work.

David Roberts @volts.wtf · 5d

"There are currently one to two Starlink satellites falling back to Earth every day ... Soon, McDowell told us, there will be up to 5 satellite reentries per day." 😳

1 to 2 Starlink satellites are falling back to Earth each day

earthsky.org

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