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stim3on.bsky.social
Simeon Schmauß
@stim3on.bsky.social
4.2K followers 680 following 1.3K posts
dabbling with photogrammetry, astrophotography, GIS and more...

https://sschmaus.github.io/links/
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stim3on.bsky.social
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
stim3on.bsky.social
Take some time this weekend and watch this breathtaking video of the aurora from space. 🔭
theseaning.bsky.social Seán Doran @theseaning.bsky.social · 17h
'Light Fantastic'

21,837 images across 18 time-lapse sequences photographed by Don Pettit & Butch Wilmore are repaired, remastered and retimed to create 3x real time video footage.

Credit: Butch Wilmore / Don Pettit / ISS / NASA / ESRS / Seán Doran

www.youtube.com/watch?v=0cKk...
ISS - Light Fantastic
YouTube video by Seán Doran
www.youtube.com
November 21, 2025 at 1:21 PM
Reposted by Simeon Schmauß
apod.shinyakato.dev
🔭 3I/ATLAS: A View from Planet Earth

Image Credit & Copyright: Rolando Ligustri

apod.nasa.gov/apod/ap25112...
Now outbound after its perihelion or closest approach to the Sun on October 29, Comet 3I/ATLAS is only the third known interstellar object to pass through our fair Solar System. Its greenish coma and faint tails are seen against a background of stars in the constellation Virgo in this view from planet Earth, recorded with a small telescope on November 14. But this interstellar interloper is the subject of an on-going, unprecedented Solar System-wide observing campaign involving spacecraft and space telescopes from Earth orbit to the surface of Mars and beyond. And while the comet from another star-system has recently grown brighter, you'll still need a telescope if you want to see 3I/ATLAS from planet Earth. It's now above the horizon in November morning skies and will make its closest approach to Earth, a comfortable 270 million kilometers distant, around December 19.
November 21, 2025 at 8:00 AM
Reposted by Simeon Schmauß
rsimmon.bsky.social
Interesting post on oblique imagery from Vantor (née Maxar): go.vantor.com/Imagery-Lead...
Highly oblique satellite image of downtown Manhattan and surrounding urban areas. The Hudson and East Rivers stand out against the many many many gray buildings.
November 20, 2025 at 11:23 PM
Reposted by Simeon Schmauß
hicommander.bsky.social
Here's our captioned release:

www.uahirise.org/hipod/ESP_08...
The HiRISE image of interstellar comet 3I/ATLAS. It shows a fuzzy white blob (the comet) on a dark background (space).
November 19, 2025 at 8:36 PM
Reposted by Simeon Schmauß
alexwitze.bsky.social
NASA's pix of the interstellar comet 3I/ATLAS are now up science.nasa.gov/solar-system...

This is the HiRISE/MRO image ⬇️
A blurry white fuzz in the center of a black frame.
November 19, 2025 at 8:27 PM
Reposted by Simeon Schmauß
astrokatie.com
Starting in one minute! Interstellar Comet 3I/ATLAS images to be shared by NASA. YouTube link: www.youtube.com/watch?v=A55S...
November 19, 2025 at 7:59 PM
Reposted by Simeon Schmauß
kellylepo.bsky.social
I'm glad this is finally out after the government shutdown!

JWST's images of dusty, spiraling shells around Wolf-Rayet star binaries are my favorite.
stsci.edu Space Telescope Science Institute @stsci.edu · 2d
Three #NASAWebb discoveries in ONE! Webb shows there are FOUR dust shells (only one was previously seen), allowing researchers to narrow the stars’ orbit of one another to a LONG 190 years. Plus, they confirmed a third star is part of the “party”: https://bit.ly/4n1tpas 🔭 🧪
November 19, 2025 at 4:14 PM
Reposted by Simeon Schmauß
s2a-systems.bsky.social
And something slightly OT. C/2025 K1 (ATLAS) during a tracking pause last night. 50 frames stacked and a single frame, from a bit earlier in the evening, to visualize the three fragments a little more clearly.
November 19, 2025 at 3:07 PM
Reposted by Simeon Schmauß
element115.bsky.social
TKS: Vladimir Chemolei's space station logistics craft. Designed to support Almaz military stations, it could carry a crew of three. Despite successful test flights, it never flew a crew. Rather, the design was reconfigured and used as Mir and ISS modules (Zarya and Nauka).
A spacecraft with a pointed nose over the Earth.
November 17, 2025 at 11:06 PM
Reposted by Simeon Schmauß
stuartatkinson.bsky.social
Second morning in a row out imaging interstellar comet 3i, and I've found a much better spot with a much clearer view so no rainbow streaks or tree branches blocking the comet!
November 17, 2025 at 5:12 AM
Reposted by Simeon Schmauß
philplait.bsky.social
IRIDESCENT CLOUD ON MARS
hourlycosmos.bsky.social Hourly Cosmos @hourlycosmos.bsky.social · 6d
Iridescent clouds over Gale Crater (enhanced color) - From Simeon Schmauß (stim3on.bsky.social) - https://flic.kr/p/2qJvryP
This enhanced color panorama was taken by Curiosity's Left Mastcam after sunset on Sol 3724 (27 January, 2023). It shows an iridescent high altitude cloud, likely made from CO2 ices. The sun has already set on the ground, but continues to illuminate this cloud which is likely at 60-80km altitude. The iridescence (rainbow effect) is caused by diffraction at sub µm ice particles. More information: doi.org/10.1029/2024GL111183 This panorama was stitched from 14 MAST_LEFT images from the PDS. The individual images were color calibrated to approximate what the human eye would see. The panorama was further enhanced to emphasise cloud structure and subtle color variations. See here for an unenhanced variant of the panorama: flic.kr/p/2qJwraX LMST: Sol-03724M18:52:13 Sun: Az: 276.2 deg, El: -5.9 deg Rationale: Characterize potentially iridescent ice clouds in twilight Credit: NASA/JPL-Caltech/MSSS/Simeon Schmauß
November 15, 2025 at 9:05 PM
Reposted by Simeon Schmauß
andrealuck.bsky.social
HiRISE isn’t just amazing for capturing the Martian surface, here’s Jupiter seen from Mars as we wait for the release of data on interstellar comet 3I/ATLAS

Full size image & info flic.kr/p/2rFJT4F
Credit NASA/JPL-Caltech/UArizona/AndreaLuck CC BY

Mars Reconnaissance Orbiter
2007-01-11 RED,IR,BG
Image captured by the Mars Reconnaissance Orbiter showing Jupiter and two of its moons. Jupiter appears slightly wider than tall, with orange and white atmospheric bands and a large oval orange storm below the center. Two small bright spheres to the right are its satellites.
November 16, 2025 at 11:48 AM
Reposted by Simeon Schmauß
asteroiddave.bsky.social
Had a lot of fun hanging out with Cleo Abram for her new Huge If True episode on planetary defense. Check it out! 🔭
Humanity’s Real Plan to Stop This Asteroid (Feat. Mark Rober)
YouTube video by Cleo Abram
youtu.be
November 15, 2025 at 9:48 PM
Reposted by Simeon Schmauß
astrowright.bsky.social
sites.psu.edu/astrowright/...
3I/ATLAS is Still Intact and Still a Comet
Loeb is breathlessly reporting that 3I/ATLAS has survived perhelion intact, and is therefore probably an alien spaceship.  This is wrong. His claim is based on a certain chain of reasoning that goes l...
sites.psu.edu
November 14, 2025 at 5:03 PM
Reposted by Simeon Schmauß
hourlycosmos.bsky.social
Gigantic jet TLE above Mexico (crop) - From Simeon Schmauß (stim3on.bsky.social) - https://flic.kr/p/2rhxUhJ
On July 3rd, astronaut Nichole Ayers photographed a gigantic jet from the ISS. These rare upward directed electrical discharges extend ~90-100 km high into the mesosphere. The jet originated from a thunderstorm over Northern Mexico, with city lights from South Texas and the green airglow layer visible along Earth’s limb. I processed this image from the RAW file, adjusting the color profile, white balance and contrast and applied Lightroom's machine learning denoise with low strength. The RAW was provided to me by Frankie Lucena, his analysis of the event, correlating it to measurements from the Geostationary Lightning mapper and ELF-VLF radio signals can be found here: spaceweathergallery2.com/indiv_upload.php?upload_id=224355 Original image listing in the NASA archive: eol.jsc.nasa.gov/SearchPhotos/photo.pl?mission=ISS073&amp... Credit: Nichole Ayers / NASA JSC / ESRS / Simeon Schmauß
November 13, 2025 at 2:00 PM
Reposted by Simeon Schmauß
esa.int
#3IATLAS update: we've just pinpointed the comet's path with 10 times more accuracy, using data from our #ExoMars Trace Gas Orbiter spacecraft. 😎🧪🔭

www.esa.int/Space_Safety...
November 14, 2025 at 10:25 AM
Reposted by Simeon Schmauß
millionconcepts.com
Here's the blooper version I mentioned. (I have no idea who the uploader is or how they got a copy of this. But I am glad that it survives.)
Mars Rover Blooper Reel
YouTube video by theropod
www.youtube.com
November 14, 2025 at 1:57 AM
Reposted by Simeon Schmauß
hectorsocas.bsky.social
"The fallacies behind the cult of Loeb"
New entry in my blog. Other articles have covered the scientific aspects; this one reflects on the social phenomenon. I argue it’s driven by a series of fallacies
tinieblasyestrellas.blogspot.com/2025/11/the-...
The fallacies behind the cult of Loeb
How media hype and misunderstanding fuel pseudoscientific fascination  Introduction The word “cult” is used here in the sense given by...
tinieblasyestrellas.blogspot.com
November 13, 2025 at 11:09 AM
Reposted by Simeon Schmauß
cira-csu.bsky.social
Circling the world over the last couple of nights, the aurora borealis put on quite a spectacular show in the sky of the northern hemisphere.
Details: This composite satellite imagery was made using the Day-Night Band from the JPSS weather satellites. It contains images that were taken between the thirty-hour period from 01:52 UTC on 2025-11-12 to 07:24 UTC on 2025-11-13.
November 14, 2025 at 5:02 AM
Reposted by Simeon Schmauß
nasaspaceflight.com
LANDED IT! That was crazy! Looked like it was going to miss, but slid back into the target and pretty much hovered to the deck and nailed it!
November 13, 2025 at 9:11 PM
Reposted by Simeon Schmauß
element115.bsky.social
The Avco 7969 was an unusual, unflown late 50s USAF crewed spaceflight concept. Instead of retrorockets, it would use a steel mesh drag brake to slow the spaceraft for reentry. This had an advantage of saving weight and being simpler than a traditional retrorocket system.
A space capsule utilizing a circular drag brake.
November 12, 2025 at 11:13 PM
Reposted by Simeon Schmauß
wildernessvagabonds.com
This is the nicest shot of the night, via two different cameras that captured the same meteor.

Crestone, Colorado USA November 12, 2025 at 2:36am MST

#astronomy #astrophotography #meteor #aurora
A meteor streaks diagonally on the top right side of the frame, with a couple pulses of brighter light. The meteor is above a red/yellow/green aurora borealis. The scene is moonlit and chamisa and cottonwood trees are visible in the foreground, along with a house. The Rocky Mountains are in the background. The sky is full of stars. A meteor streaks diagonally in the center of the frame, with a couple pulses of brighter light. The meteor is above a red/yellow/green aurora borealis. The scene is moonlit and chamisa and cottonwood trees are visible in the foreground, along with a house. The Rocky Mountains are in the background. The sky is full of stars. There are some moonlit streaks of cloud on the right side, and some puffier clouds low on the left.
November 12, 2025 at 4:51 PM
Reposted by Simeon Schmauß
merrdiff.bsky.social
Hey look it's a @vrubinobs.bsky.social difference imaging zooniverse game! Help us classify real vs bogus detections with REAL RUBIN DATA! www.zooniverse.org/projects/ebe...
Screenshot from website reads, help us identify changing objects across the universe with the Vera C. Rubin Observatory, from explosive astrophysical transients to moving objects and more! Then there are 2 buttons, Learn more and Get started, and at the bottom are three example triptych images with template, science, and difference images
November 11, 2025 at 7:09 PM
Reposted by Simeon Schmauß
drfunkyspoon.bsky.social
Why are planetary scientists, astrobiologists and and SETI scientists so negative (pissed off, even) about Avi Loeb’s repeated claims that 3I/Atlas may be an invading alien spaceship?
🧵
🧪🔭🛸
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November 10, 2025 at 11:41 PM