Gordan Ugarković
@ugordan.bsky.social
I used to dabble in image processing, mostly with NASA's Cassini spacecraft data. Software engineer by day.
Pinned
On this day in 1991., Vukovar fell after an almost 3-month siege. This footage was taken 3 years after the town was occupied by the Serbs. At the time, it was the bloodiest battle fought on European soil after WWII. Ukraine took that unfortunate crown since.
www.youtube.com/watch?v=EA_2...
www.youtube.com/watch?v=EA_2...
Requiem_for_Vukovar.webm
YouTube video by Κοσμάς Αθανασιάδης
www.youtube.com
November 18, 2025 at 2:54 PM
On this day in 1991., Vukovar fell after an almost 3-month siege. This footage was taken 3 years after the town was occupied by the Serbs. At the time, it was the bloodiest battle fought on European soil after WWII. Ukraine took that unfortunate crown since.
www.youtube.com/watch?v=EA_2...
www.youtube.com/watch?v=EA_2...
This bit has been bothering me for years. It's oval-shaped and it doesn't match any imaging artifacts on the NAC that I've seen before. It's almost as if it's a bow shock in the E ring. Any ideas?
November 17, 2025 at 7:54 PM
This bit has been bothering me for years. It's oval-shaped and it doesn't match any imaging artifacts on the NAC that I've seen before. It's almost as if it's a bow shock in the E ring. Any ideas?
Reposted by Gordan Ugarković
E-ring Shadow - From Gordan Ugarković (ugordan.bsky.social) - https://flic.kr/p/8Hp3hH
November 17, 2025 at 7:00 PM
E-ring Shadow - From Gordan Ugarković (ugordan.bsky.social) - https://flic.kr/p/8Hp3hH
Solar protons are really bad for space-based astronomy, m'kay?
Those were beautiful #aurorae in the past days. A solar storm brought a lot of protons to Earth. Not only to Earth but also to #ESAEuclid – but does #Euclid notice? Oh yes.
www.euclid-ec.org/here-comes-t...
#ESA #Sun #SpaceWeather #space
www.euclid-ec.org/here-comes-t...
#ESA #Sun #SpaceWeather #space
November 15, 2025 at 7:50 PM
Solar protons are really bad for space-based astronomy, m'kay?
Some food for thought.
[NEW VIDEO] Maybe my most important nuclear video as I wade into the industry’s most controversial topic: youtu.be/gzdLdNRaPKc?...
The Debunked Idea Holding Nuclear Back
YouTube video by Kyle Hill
youtu.be
October 29, 2025 at 7:26 PM
Some food for thought.
Interesting video on how the "NATO phonetic alphabet" (you know, those Alfa, Bravo, November, Lima, Foxtrot, Yankee etc.) words you hear in aviation and in the military eventually got selected.
www.youtube.com/watch?v=UAT-...
www.youtube.com/watch?v=UAT-...
The genius logic of the NATO phonetic alphabet
YouTube video by RobWords
www.youtube.com
October 13, 2025 at 10:51 AM
Interesting video on how the "NATO phonetic alphabet" (you know, those Alfa, Bravo, November, Lima, Foxtrot, Yankee etc.) words you hear in aviation and in the military eventually got selected.
www.youtube.com/watch?v=UAT-...
www.youtube.com/watch?v=UAT-...
Reposted by Gordan Ugarković
Here is a fantastic summary by @fcain.universetoday.com of all the important and interesting findings that have been published about #3I/Atlas.
And surprise surprise, none of them indicate that its an alien spaceship! 🔭
www.youtube.com/watch?v=hZWK...
And surprise surprise, none of them indicate that its an alien spaceship! 🔭
www.youtube.com/watch?v=hZWK...
3I/ATLAS Is Super Weird. But Not In The Ways You Think
YouTube video by Fraser Cain
www.youtube.com
October 11, 2025 at 9:28 PM
Here is a fantastic summary by @fcain.universetoday.com of all the important and interesting findings that have been published about #3I/Atlas.
And surprise surprise, none of them indicate that its an alien spaceship! 🔭
www.youtube.com/watch?v=hZWK...
And surprise surprise, none of them indicate that its an alien spaceship! 🔭
www.youtube.com/watch?v=hZWK...
Apollo 11: The Complete Descent
YouTube video by Apollo 11 - Apollo Flight Journal
www.youtube.com
October 11, 2025 at 6:48 PM
File this one into the "Today I learned" cabinet.
October 4, 2025 at 10:38 AM
File this one into the "Today I learned" cabinet.
Freedom of speech.
How it started: www.youtube.com/watch?v=RFrk...
How it's going: www.youtube.com/watch?v=ZdGL...
#FCC
How it started: www.youtube.com/watch?v=RFrk...
How it's going: www.youtube.com/watch?v=ZdGL...
#FCC
September 20, 2025 at 8:14 PM
Freedom of speech.
How it started: www.youtube.com/watch?v=RFrk...
How it's going: www.youtube.com/watch?v=ZdGL...
#FCC
How it started: www.youtube.com/watch?v=RFrk...
How it's going: www.youtube.com/watch?v=ZdGL...
#FCC
A distant shot of Saturn's system while Cassini was still was on its way. This was taken after they had resolved the condensation residue issue on the ISSNA optics by heating it, and still almost 2 years before Saturn arrival. Magnified 2x from original pixel scale.
Taken on 2002-10-21 14:43 UTC
Taken on 2002-10-21 14:43 UTC
September 20, 2025 at 1:25 PM
A distant shot of Saturn's system while Cassini was still was on its way. This was taken after they had resolved the condensation residue issue on the ISSNA optics by heating it, and still almost 2 years before Saturn arrival. Magnified 2x from original pixel scale.
Taken on 2002-10-21 14:43 UTC
Taken on 2002-10-21 14:43 UTC
Reposted by Gordan Ugarković
The sun was just 10 degrees above the horizon when NASA's Perseverance rover captured this morning view of Nili Planum yesterday. The rim of Jezero crater is casting a long shadow over the rover and foreground landscape. 🔭
Full res: flic.kr/p/2rt54pJ
Credit: NASA/JPL-Caltech/Simeon Schmauß
Full res: flic.kr/p/2rt54pJ
Credit: NASA/JPL-Caltech/Simeon Schmauß
September 13, 2025 at 9:54 PM
The sun was just 10 degrees above the horizon when NASA's Perseverance rover captured this morning view of Nili Planum yesterday. The rim of Jezero crater is casting a long shadow over the rover and foreground landscape. 🔭
Full res: flic.kr/p/2rt54pJ
Credit: NASA/JPL-Caltech/Simeon Schmauß
Full res: flic.kr/p/2rt54pJ
Credit: NASA/JPL-Caltech/Simeon Schmauß
Natural color image of Titan taken by the Cassini spacecraft's narrow-angle camera on 2013-06-10 15:17 UTC.
Uncompressed quality image available at flic.kr/p/vQxGot
Uncompressed quality image available at flic.kr/p/vQxGot
September 14, 2025 at 6:25 AM
Natural color image of Titan taken by the Cassini spacecraft's narrow-angle camera on 2013-06-10 15:17 UTC.
Uncompressed quality image available at flic.kr/p/vQxGot
Uncompressed quality image available at flic.kr/p/vQxGot
Cassini wide-angle RGB view taken 2011-09-13 11:31 UTC.
Distance to Enceladus: 277 000 km
Distance to Tethys: 213 000 km
Phase angle: 135 deg
Distance to Enceladus: 277 000 km
Distance to Tethys: 213 000 km
Phase angle: 135 deg
September 13, 2025 at 1:26 PM
Cassini wide-angle RGB view taken 2011-09-13 11:31 UTC.
Distance to Enceladus: 277 000 km
Distance to Tethys: 213 000 km
Phase angle: 135 deg
Distance to Enceladus: 277 000 km
Distance to Tethys: 213 000 km
Phase angle: 135 deg
Reposted by Gordan Ugarković
Artist: Hage
![HOW το WATCH THE COLLAPSE OF CIVILIZATION
[guy slumping in chair - red lines along his curved back while he looks at his phone and a red x ]
[ a guy sitting straight against his chair while he looks at his phone - a green line along his straight back and a green checkmark]
Artist: HAGE](https://cdn.bsky.app/img/feed_thumbnail/plain/did:plc:lxm3v43kiuo4gdun45a4zivh/bafkreigygle3kvf66dyghpy2fzeml6od2l346sgdp7ip2j4vef5oean3oa@jpeg)
September 7, 2025 at 8:52 PM
Artist: Hage
Voyager 1 launched OTD in 1977. Had its radio occultation of Titan failed, Voyager 2 would have followed the same trajectory and we'd get no Uranus or Neptune as a result. Nature cooperated (no rain above ground stations to mess with Titan radio occultation data). Let that sink in. (1/2)
September 5, 2025 at 8:03 PM
Voyager 1 launched OTD in 1977. Had its radio occultation of Titan failed, Voyager 2 would have followed the same trajectory and we'd get no Uranus or Neptune as a result. Nature cooperated (no rain above ground stations to mess with Titan radio occultation data). Let that sink in. (1/2)
In the shadow of the Starship program, Falcon 9 quietly achieved 2 milestones: the first booster to launch 30 times and the 400th droneship recovery.
F9 is literally the U.S. workhorse rocket right now with reliability unmatched by any other SLV.
F9 is literally the U.S. workhorse rocket right now with reliability unmatched by any other SLV.
August 29, 2025 at 8:39 PM
In the shadow of the Starship program, Falcon 9 quietly achieved 2 milestones: the first booster to launch 30 times and the 400th droneship recovery.
F9 is literally the U.S. workhorse rocket right now with reliability unmatched by any other SLV.
F9 is literally the U.S. workhorse rocket right now with reliability unmatched by any other SLV.
What an amazing image, the suppression of the star's brightness is so good, it makes it look like it's from ALMA.
A very hungry planet! 🪐
What appears to be a ripple in space is actually a newborn planet, eating its way through its dusty cradle around a younger version of our Sun 🌞
Read more: https://www.eso.org/public/images/potw2534a/
🔭 🧪 #exoplanets
📷 ESO/R. van Capelleveen et al.
What appears to be a ripple in space is actually a newborn planet, eating its way through its dusty cradle around a younger version of our Sun 🌞
Read more: https://www.eso.org/public/images/potw2534a/
🔭 🧪 #exoplanets
📷 ESO/R. van Capelleveen et al.
August 26, 2025 at 2:45 PM
What an amazing image, the suppression of the star's brightness is so good, it makes it look like it's from ALMA.
Reposted by Gordan Ugarković
Debating with myself whether or not to unfollow a number of accounts because their posts focus on Trump, Epstein and the general clusterfuck that is the U.S.of A right now, of which I just can't really be bothered to care about for my own psychological wellbeing.
August 23, 2025 at 7:20 PM
Debating with myself whether or not to unfollow a number of accounts because their posts focus on Trump, Epstein and the general clusterfuck that is the U.S.of A right now, of which I just can't really be bothered to care about for my own psychological wellbeing.
Reposted by Gordan Ugarković
Still can't get over @deschscoveries.bsky.social parodying Loeb, and Loeb straight-up playing out the parody a 3 days later.
Is Desch a clairvoyant, or did Loeb read this mockery of him and think—hey, that's actually a great idea!—and just plagiarize him?!
Is Desch a clairvoyant, or did Loeb read this mockery of him and think—hey, that's actually a great idea!—and just plagiarize him?!
August 18, 2025 at 2:57 AM
Still can't get over @deschscoveries.bsky.social parodying Loeb, and Loeb straight-up playing out the parody a 3 days later.
Is Desch a clairvoyant, or did Loeb read this mockery of him and think—hey, that's actually a great idea!—and just plagiarize him?!
Is Desch a clairvoyant, or did Loeb read this mockery of him and think—hey, that's actually a great idea!—and just plagiarize him?!
Reposted by Gordan Ugarković
Glad the Apollo 13 movie is getting reruns lately.
This scene is even more moving today: right, Tom Hanks playing Jim Lovell; left, cameo appearance by actual Jim Lovell (1928 Mar 25 - 2025 Aug 7).
This scene is even more moving today: right, Tom Hanks playing Jim Lovell; left, cameo appearance by actual Jim Lovell (1928 Mar 25 - 2025 Aug 7).
August 8, 2025 at 8:54 PM
Glad the Apollo 13 movie is getting reruns lately.
This scene is even more moving today: right, Tom Hanks playing Jim Lovell; left, cameo appearance by actual Jim Lovell (1928 Mar 25 - 2025 Aug 7).
This scene is even more moving today: right, Tom Hanks playing Jim Lovell; left, cameo appearance by actual Jim Lovell (1928 Mar 25 - 2025 Aug 7).
Reposted by Gordan Ugarković
Apollo 13 astronaut Jim Lovell has passed at 97 www.nasa.gov/news-release...
One of my early young journalist memories was getting to interview him and Ron Howard on a red carpet in Austin for a screening of Apollo 13. I bragged about it for a while! (I'm the mop of brown curly hair)
One of my early young journalist memories was getting to interview him and Ron Howard on a red carpet in Austin for a screening of Apollo 13. I bragged about it for a while! (I'm the mop of brown curly hair)
August 8, 2025 at 7:30 PM
Apollo 13 astronaut Jim Lovell has passed at 97 www.nasa.gov/news-release...
One of my early young journalist memories was getting to interview him and Ron Howard on a red carpet in Austin for a screening of Apollo 13. I bragged about it for a while! (I'm the mop of brown curly hair)
One of my early young journalist memories was getting to interview him and Ron Howard on a red carpet in Austin for a screening of Apollo 13. I bragged about it for a while! (I'm the mop of brown curly hair)