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tedstryk.bsky.social
Ted Stryk
@tedstryk.bsky.social
2.4K followers 160 following 600 posts
Interplanetary Dumpster Diver. Asteroid (230728) Tedstryk
Images I post are Copyright Ted Stryk (processed or taken by me) unless otherwise noted. Professor at Roane State CC in Oak Ridge, TN
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tedstryk.bsky.social
Triton, moon of Neptune, seen in front of Neptune from the receding Voyager 2 in 1989.
A crescent Triton roughly centered in front of a crescent Neptune.
December 31, 2025 at 5:25 PM
tedstryk.bsky.social
Today in 2023, NASA's Juno spacecraft flew by Jupiter's volcanic moon Io, sending back amazing imagery and other data, including this view.
Io from Jupiter. The night side can be seen in light reflected off of Jupiter.
December 30, 2025 at 11:24 PM
Reposted by Ted Stryk
andrealuck.bsky.social
3/3 If you missed the many earlier releases of Martian dust storms or Phobos passing through, check out both albums below. Lots of great stuff! 🔭🧪

Phobos: flickr.com/photos/19227...

Dust storms: flickr.com/photos/19227...
Dust Storms on Mars
Explore this photo album by Andrea Luck on Flickr!
flickr.com
December 27, 2025 at 6:50 PM
tedstryk.bsky.social
Ganymede, moon of Jupiter, on March 4, 1979, from Voyager 1. At the top are the component images used to to create the final image. They have been colored to indicate what filter was used for each image.
Ganymede from the approaching Voyager 1. This was produced using images taken through Voyager's Violet, Orange (it was red-blind), blue, and green filters.
December 27, 2025 at 6:49 PM
Reposted by Ted Stryk
andrealuck.bsky.social
I might be biased, but today the South Polar Cap of Mars looks a lot like Scotland to me 😂

Full size image & info: flic.kr/p/2oqrPg1 🔭🧪
Credit: ESA/DLR/FUBerlin/AndreaLuck

ESA Mars Express HRSC 2015-04-09
View of the south polar cap on Mars. A large bright white ice-covered area sits at the center, with an uneven, jagged shape that the author says resembles Scotland. Dark, winding lines of exposed terrain cut through the ice. The surrounding surface is reddish-brown with smoother textures.
December 18, 2025 at 10:25 PM
Reposted by Ted Stryk
andrealuck.bsky.social
3/3 If you’ve been following my work this won’t come as a surprise. I’ve once again updated the family portrait of the Solar System’s giant planets captured in near infrared by JWST

Full size+info flic.kr/p/2oUkYSY 🧪🔭

I’ll keep updating it whenever an improved version of these giants is released🙂
The image is divided into four sections, each showing one of the gas giants against a black background. Top left: Jupiter. It appears as a large, round sphere with horizontal bands in shades of light brown, tan, and white. A bright white oval storm sits on the lower right side. A faint ring is visible alongside Europa, one of its satellites, which appears very bright with a star-shaped artifact. Top right: Saturn appears as a pale gold/brownish sphere with horizontal bands, encircled by a bright whitish, thin oval ring system. The atmosphere is showing off a few circle whitish storm-like features. Bottom left: Uranus. It appears as a smooth blue-green sphere with some whitish circular clouds around the pole that is facing the observer. Surrounding it is a bright circular ring system made up of thin white lines. The rings form a bright, symmetrical halo around the planet. Bottom right: Neptune. It is a blue sphere with slightly brighter and darker circular features on its atmosphere. It also has a thin ring system, dimmer and less defined than Uranus’s in this image, appearing as a faint double oval around the planet. Each planet has its name printed below it in white capital letters.
December 14, 2025 at 8:55 PM
tedstryk.bsky.social
Today in 1989, the Space Shuttle Atlantis launched the Galileo spacecraft, the first orbiter and entry probe at a giant planet. When I watch it recede from the shuttle, I can't help but want to scream to open the antenna first (it never opened). They were still able to salvage an amazing mission.
A crescent Jupiter from the Galileo orbiter Io, moon of Jupiter, from the Galileo Orbiter The rings of Jupiter and Europa, moon of Jupiter, from the Galileo orbiter. In this view, Europa is eclipsed by the planet Jupiter, which is why it is so dim relative to the rings. Callisto, moon of Jupiter from the Galileo orbiter.
December 8, 2025 at 3:42 AM
Reposted by Ted Stryk
andrealuck.bsky.social
1/n 🧵
Just released: NEW images of Phobos over Mars by @esa.int Mars Express 🔭🧪

This view shows Phobos above Olympus Mons!

Full-size (130MP) image & details: flic.kr/p/2rggHKy
Credit: ESA/DLR/FU Berlin/Andrea Luck CC BY

Captured on May 14, 2025 | Image ID: HQ967
Raw data from: psa.esa.int
A high-resolution color image of Mars with the small, dark, potato shaped satellite Phobos, seen in sharp contrast as it passes over the massive volcano Olympus Mons. Phobos appears irregular and shadowed against the softly rust colored Martian surface. In the distance, two other volcanic features Ascraeus Mons (upper right) and the flatter Alba Mons (upper left) are visible. Wisps of light clouds and the blackness of space frame the planet’s curved horizon.
July 12, 2025 at 8:33 PM
Reposted by Ted Stryk
areoinfo.bsky.social
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
Reposted by Ted Stryk
andrealuck.bsky.social
3/3

Time to update the Gas Giant Portrait I created, now including the new versions of Saturn and Uranus I recently processed.

Full size & more info: flic.kr/p/2oUkYSY 🔭🧪
Credit: NASA/ESA/CSA/STScI/AndreaLuck

Jupiter is next on the list to be updated :)
The image is divided into four sections, each showing one of the gas giants against a black background. Top left: Jupiter. It appears as a large, round sphere with horizontal bands in shades of brown, tan, and white. A bright white oval storm sits on the lower right side. A faint ring is visible alongside Europa, one of its satellites, which appears very bright with a star-shaped artifact. Top right: Saturn. It has a pale beige surface with soft horizontal shading. Surrounding it is a wide, bright ring system tilted diagonally. The rings look thin and sharply defined, with multiple subtle bands of light and dark. Bottom left: Uranus. It appears as a smooth blue-green sphere with some whitish circular clouds around the pole that is facing the observer. Surrounding it is a bright circular ring system made up of thin white lines. The rings form a bright, symmetrical halo around the planet. Bottom right: Neptune. It is a blue sphere with slightly brighter and darker circular features on its atmosphere. It also has a thin ring system, dimmer and less defined than Uranus’s in this image, appearing as a faint double oval around the planet. Each planet has its name printed below it in white capital letters.
November 29, 2025 at 1:03 PM
tedstryk.bsky.social
Introduce yourself with five concerts you've seen:

Bob Dylan (x13)
REM
Counting Crows
Soul Asylum
Willie Nelson
asrivkin.bsky.social Andy Rivkin @asrivkin.bsky.social · Nov 27
Introduce yourself with five concerts you've seen:

REM
The Smithereens
Bob Mould
Buckwheat Zydeco
Shonen Knife
chuckwendig.bsky.social Chuck Wendig @chuckwendig.bsky.social · Nov 27
Introduce yourself with five concerts you've seen —

NIN
Yeah Yeah Yeahs
Soul Coughing
Poe
Tom Morello
November 28, 2025 at 1:39 AM
Reposted by Ted Stryk
volcanopele.bsky.social
@spacemarschall.net if going with an image from that paper, I would suggest our “true” color reconstructions. Very approximate true color, SHARK-VIS in February didn’t have a proper blue filter but a general purpose “visible” filter. Hopefully to be remedied in time for the next Jupiter oppo
Two images of Io acquired by SHARK-VIS camera on the Large Binocular Telescope. Left image shows the trailing hemisphere, including the red ring around Pele. Several dark splotches visible from ash fall deposits from Pele and Babbar. The right image shows the anti-Jovian hemisphere with Prometheus in the middle.
November 27, 2025 at 2:25 PM
tedstryk.bsky.social
Introduce yourself with four spaceships.
New Horizons Phobos 2 Venera 14, visualized by Mattias Malmer Voyager 2
November 26, 2025 at 12:19 AM
Reposted by Ted Stryk
hourlycosmos.bsky.social
Phobos over Mars - ESA Mars Express - From Andrea Luck (andrealuck.bsky.social) - https://flic.kr/p/2qQWKph
Download full size image here: www.flickr.com/photos/192271236@N03/54375128834/sizes/o/ (See licence below) Credit: ESA/DLR/FUBerlin/AndreaLuck CC BY Check out the original with the martian background distorted here: flic.kr/p/2ogpjSY. The camera scanning the satellite caused the original view of the Martian surface to appear stretched as it moved by. Colourised image created using data processed from archives.esac.esa.int/psa Mission: ESA Mars Express Orbit 22608 Instrument: HRSC Time: 2021-11-22 22:51 Product IDs: HM608_0000_BL3 HM608_0000_ND3 Notes: Colourised image created using data processed from: psa.esa.int. This is a single shot on HM608_0000_BL3, not a composite image, although the background has been resized to reduce distortion (see above original) and the details on Phobos are merged with the second filter HM608_0000_ND3, shot during the same observation. Credit: ESA/DLR/FUBerlin/AndreaLuck CC BY Feel free to share, giving the appropriate credit and providing a link to the original image or tweet creativecommons.org/licenses/by/3.0/
November 23, 2025 at 9:00 PM
Reposted by Ted Stryk
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 Ted Stryk
coreyspowell.bsky.social
NASA's just-launched ESCAPADE mission is trying out a novel trajectory to Mars, one that's slower but allows much more flexible launch dates. The flight path also provides a bonus science session at the L2 equilibrium point near Earth. 🧪🔭

skyandtelescope.org/astronomy-ne...
ESCAPADE will first travel to the Lagrange point beyond Earth's orbit, then a trans-injection burn will take it swinging by Earth and then inserting into orbit around Mars. Credit: Space Sciences Laboratory / University of California, Berkeley
November 14, 2025 at 4:46 PM
Reposted by Ted Stryk
coreyspowell.bsky.social
Interstellar Comet 3I/ATLAS is fragmenting on its way back out from the Sun. 🧪🔭

www.virtualtelescope.eu/2025/11/13/c...
The image of Comet ATLAS comes from the sigma-clipping combination of 15, 60-second unfiltered exposures, remotely taken with the Celestron C14+Paramount ME+SBIG ST-10XME robotic unit available as part of the Virtual Telescope Project in Manciano, Italy. To keep the highest detail, we shortened the exposure time and, looking at the results, we are happy with that choice.
November 13, 2025 at 9:21 PM
tedstryk.bsky.social
Congratulations to the ESCAPADE team! science.nasa.gov/blogs/escapa...
NASA’s Twin ESCAPADE Spacecraft Have Deployed - NASA Science
NASA’s ESCAPADE (Escape and Plasma Acceleration and Dynamics Explorers) twin spacecraft have deployed from the Blue Origin New Glenn second stage. The
science.nasa.gov
November 14, 2025 at 12:06 AM
Reposted by Ted Stryk
deschscoveries.bsky.social
Avi Loeb's calculations about 3I/ATLAS are 100% wrong because he has never understood that dust in the tail(s) responds to solar radiation pressure. Solar wind shapes the ion tail. But the radiation pressure is about 1000 times larger than the solar wind ram pressure, for particles that feel it.
November 13, 2025 at 9:36 PM
tedstryk.bsky.social
The Northern Lights were spectacular tonight. It looked blood red from my front yard.
November 12, 2025 at 4:10 AM
tedstryk.bsky.social
My view is this: I think the deal stinks. Now, if it passes and they successful protect ACA subsidies in December, then I'll gladly admit I was wrong. If they don't, then I think that there is not real point in supporting except for trying to replace it from the inside. They're just a useful foil.
November 10, 2025 at 11:50 AM
tedstryk.bsky.social
The north polar region of Enceladus from Voyager 2 on August 25, 1981. Voyager 2 was unlucky enough to get its best views of the least active parts of this moon.
This view of Enceladus shows craters, some with modified shapes from later activity, plus a finger of a smooth region to the left.
November 6, 2025 at 12:01 PM
Reposted by Ted Stryk
andrewjonesspace.bsky.social
Tianwen-1 Mars orbiter successfully observed the interstellar object 3I/ATLAS in early October at a distance of ~29 million km, CNSA has just announced. www.cnsa.gov.cn/n6758823/n67...
November 6, 2025 at 12:42 AM
tedstryk.bsky.social
Europa, moon of Jupiter, from the Galileo orbiter on November 25th, 1999.
All sorts of fractures can be seen on the icy surface of Europa.
November 5, 2025 at 12:54 AM
tedstryk.bsky.social
Baseball has made it to November 2nd.
November 2, 2025 at 4:02 AM