JY'J' Kim - 05.02.1984

[Orionid]

(2)
Załoga ISS rozbudowuje obecny sprzęt, demonstrując tworzenie złotych nanosfer w warunkach mikrograwitacji.
Są one większe i bardziej jednorodne niż ich ziemskie odpowiedniki i znajdują zastosowanie w diagnostyce i leczeniu raka oraz w ulepszonych lekach.
Astronauci w tym celu pobierają próbki z zamrażarki MELFI i umieszczają je w przemysłowych kasetach krystalizacyjnych, a następnie są dostarczane na Ziemię w celu przeprowadzenia dalszych analiz.

Jonny Kim @JonnyKimUSA 10:48 PM · May 21, 2025
M+38: One of the experiments we’re conducting on the @Space_Station is to expand on current hardware, demonstrating the creation of golden nanospheres under microgravity conditions, which are larger and more uniform than their Earth-bound versions, and have applications in cancer diagnostics and treatment and improved pharmaceuticals.

We obtain our samples from the MELFI freezer and grow them into our Industrial Crystallization Cassettes, and will package them for return on Spx-32 for additional analysis.

https://twitter.com/JonnyKimUSA/status/1925292607858778462

[Orionid]

(ciąg dalszy): Temperatura w zamrażarce utrzymuje się na poziomie -98 °C.
Otwarcie MELFI to jak podmuch arktycznego powietrza prosto w twarz. Temperatura w zamrażarce utrzymuje się na poziomie -98 stopni Celsjusza!
Na filmie widać skrupulatne kontrole i ponowne kontrole próbek oraz procedur.

Jonny Kim @JonnyKimUSA 10:56 PM · May 21, 2025
M+38 (continued): Opening up MELFI is like getting a blast of arctic air in your face. The freezer is kept to -98 deg C!

In the video you’ll see meticulous checks and rechecks of our samples and the procedures.

It seems slow, but being meticulous to conduct experiments without mistakes is crucial to ensure we are doing our best job to enable the science results that so many research teams on the ground have worked years to plan for.

It’s a huge honor for us on the ISS to conduct their experiments and we couldn’t do our jobs without amazing ground support.

https://x.com/JonnyKimUSA/status/1925294627701104910

[Orionid]

Procedury załadunkowe.

Jonny Kim @JonnyKimUSA 6:15 PM · May 22, 2025
M+40: So what is it like to load a space cargo vehicle? It’s not too different from what you would do to pack for a move or ship a lot of cargo. It reminds me of building pallets before deployments.   

First, we work off a synchronized checklist that our amazing @NAS inventory stowage teams develop, find the items in the @Space_Station that are called out, double check that the serial numbers and barcodes match, pack the items and if necessary cushion them with bubble wrap and foam, and load them into the cargo space vehicle.   

The cargo vehicle’s center of gravity and mass calculations for re-entry depend on everything being packed in the correct order and orientation, so attention to detail matters.   

Finally, the straps have to be tightened and finished off with half hitches.   

Some of the precious cargo returning to Earth on Spx-32 are our science experiments, where ground teams eagerly await to get the experiments to the correct labs for additional research and analysis. 

It’s a lot of work but also fun, and we have a great team on-board and on the ground.

https://x.com/JonnyKimUSA/status/1925586396607066343

[Orionid]

Eksperymentów, który ma sprawdzić, jak ogień zachowuje się w warunkach obniżonej grawitacji.

Jonny Kim @JonnyKimUSA 8:34 PM · May 23, 2025
M+35: Did you know the @Space_Station has multiple combustion chambers? One of the experiments we’re conducting is to see how fire behaves differently in reduced gravity conditions.

Fire is a serious hazard in spaceflight, especially when operating in elevated oxygen concentrations.

This combustion chamber is called SoFIE (solid fuel ignition and extinction), and it helps us evaluate and test the combustion properties of various materials in microgravity so we can better understand these material properties and know what to use (and not use) for future deep space exploration missions.

https://x.com/JonnyKimUSA/status/1925983587398017532

[Orionid]

Jeden z eksperymentów dotyczy SANS (Space Associated Neuro-Ocular Syndrome).
To unikatowe schorzenie obserwowane wyłącznie u astronautów narażonych na długotrwałe działanie mikrograwitacji. Nie ma odpowiednika na Ziemi (ale dla lekarzy jego objawy są podobne do idiopatycznego nadciśnienia śródczaszkowego).
Schorzenie to może wpływać na wzrok i strukturę oka.

Jonny Kim @JonnyKimUSA 10:00 PM · May 28, 2025
M+43: Have you heard of Space Associated Neuro-Ocular Syndrome (SANS)? It’s a unique condition only observed in astronauts exposed to long durations of microgravity, there is no terrestrial equivalent (but for the docs out there, its features are similar to idiopathic intracranial hypertension).

The condition can affect vision and eye structure, and it’s important we understand the condition before deep exploration missions.

One theory is that the fluid shifts that occur in the body due to microgravity are the cause, as fluids shift toward the head potentially increasing the pressure against our eyes and the precious nerves and tissue that support them.

One of the interesting experiments we are conducting is to see whether wearing tight thigh cuffs, thereby reducing the volume of blood returning to the heart, can decrease fluid shifts and pressure to the head. We work with a team at
@NASA to compare different metrics across ultrasound, optical coherence tomography (think of a CT scan for the eye but without radiation) and tonometry (poking the eye to get eye pressures) to see what changes if any occur with and without a thigh cuff.

My partner, @AstroAnnimal, a great ultrasound and OCT operator, spent the better part of a day poking my eye, helping me probe my blood vessels, and scan my eyeballs. It’s a long day, but as our commander, @Astro_Onishi, says, “It’s for science.”

https://x.com/JonnyKimUSA/status/1927817302206038408

[Orionid]

Przegląd procedur udzielania pierwszej pomocy oraz algorytmamów zaawansowanego wsparcia życiowego na wypadek, gdyby któryś z członków naszej załogi stracił przytomność i wymagał opieki.

Jonny Kim @JonnyKimUSA 9:17 PM · May 29, 2025
M+44: Though we never expect to use it, it’s important that we review basic first responder and advanced life support algorithms in the case that one of our crew mates is unresponsive and needs care.

With ground assistance, we went over basic algorithms, reviewed the emergency medical equipment on board the
@Space_Station, and re-adapted our strategy to perform chest compressions in microgravity.

If you’ve ever given CPR before, you know it requires a lot of energy and can be quite fatiguing, so positioning yourself to use major muscle groups is important but tricky in microgravity. The upside down technique is a popular position for chest compressions.

2) Umiejętność wykonywanie różnych operacji technicznych na orbicie ma duże praktyczne znaczenie.

Jonny Kim @JonnyKimUSA 6:31 PM · May 30, 2025
M+45: Embracing a DIY mentality is helpful for learning new skills. As astronauts, we’re often called to perform various tasks and maintaining a student-like attitude helps us learn new skills.

My experience setting up home networking unexpectedly proved invaluable years later in space. While tasks like repairing an ethernet cable—cutting the CAT cable, stripping the jacket, and crimping a new connector—are similar on Earth and in space, microgravity introduces unique challenges.

On Earth, fine metallic threads from the cable’s jacket fall harmlessly, but in space, they float as hazardous debris, risking our breathing and eyes. To mitigate this, we use tape or a nearby vacuum cleaner to capture these harmful particles.

And for every one of these tasks, we have NASA ground teams that spend a lot of time perfecting each detailed step of a procedure, and standing by to assist and guide us in real time. We could not do this job without Mission Control Houston support.

https://x.com/JonnyKimUSA/status/1928489563581985232

[Orionid]

Nieoczekiwane zadanie konserwacyjne polegające na naprawie kluczowego elementu TAS (Thermal Amine Scrubber)
Usuwa CO2 z otoczenia i wydala go za burtę w przestrzeń kosmiczną.

TAS działa poprzez przyleganie do cząsteczek CO2, gdy powietrze przepływa nad złożami amin. Złoża te są następnie podgrzewane, aby uwolnić wychwycony CO2, który ostatecznie jest uwalniany za burtę.

TAS działa poprzez wiązanie cząsteczek CO2, gdy powietrze przepływa przez złoża aminowe.
Złoża te są następnie podgrzewane w celu uwolnienia wychwyconego CO2, który ostatecznie jest wyrzucany na zewnątrz.
TAS jest częścią zestawu systemów kontroli środowiska i podtrzymywania życia nowej generacji ECLSS (environmental control and life support systems)
W ramach tego zadania astronauta wyjął TAS z modułu laboratoryjnego, a następnie  z pomocą Nichole Ayers i Takuya Onishi wykonał główne zadanie polegające na wymianie kluczowego elementu.

Jonny Kim @JonnyKimUSA 5:38 PM · Jun 3, 2025
M+51: Teamwork makes the dream work. Oftentimes, a single task will be broken up into stages that are each completed by a different crew member, or sometimes as pairs.

This week we had an unexpected maintenance task of repairing a critical component of the Thermal Amine Scrubber (TAS) in the @Space_Station.

What does the TAS do? It removes CO2 from our environment and expels it overboard into space. Oxygen is a critical element for human survival in space, but just as important is to keep carbon dioxide levels low, which is a byproduct of our metabolism. CO2 in high levels is poisonous.

TAS works by adhering to CO2 molecules as air passes over their amine beds. These beds are then heated to release the captured CO2 where it is eventually released overboard.

TAS is part of @NASA’s next generation suite of environmental control and life support systems (ECLSS), which can help future missions to the Moon and Mars.

For this task, I helped remove TAS from its home in the Laboratory module, then @Astro_Ayers with @Astro_Onishi
's assistance did the main task of replacing the critical component. In the background of all this, we have Mission Control Houston watching through live feeds and giving us guidance and procedures.

https://x.com/JonnyKimUSA/status/1929925621410414954

(2) Rozmowa o misji z Leilą z porannego wydania NPR.

Jonny Kim @JonnyKimUSA 9:46 PM · Jun 4, 2025
M+55: Greatly enjoyed talking about our mission, our purpose, daily lives and the human connections aboard the International @Space_Station with Leila of @NPR's Morning Edition.

https://www.npr.org/2025/06/04/nx-s1-5366013/navy-seal-turned-doctor-turned-astronaut-says-he-had-a-clear-motivator-serve-others
https://x.com/JonnyKimUSA/status/1930350345340809424

[Orionid]

Wyczyszczenie filtrów powietrza, sprawdzenie uszczelek oraz wymiana chipsetów w serwerach na ISS przy wsparciu Centrum Kontroli Lotu.

Jonny Kim @JonnyKimUSA 7:46 PM · Jun 12, 2025
M+62: We don’t work behind payload racks often, but sometimes maintenance calls for it.

In this case, cleaning out air filters and inspecting seals, and replacing chipsets in our servers, all with the assistance of Mission Control following along with live video.

One thing I’ve come to appreciate with maintenance in space is how much gravity helps keep things where they belong. For example, on the ground, I can simply set my pliers down and I know they won’t disappear. But in space, we have to think before every action, because setting pliers down is a recipe for losing them.

Space is one of the most humbling environments I’ve operated in.

https://x.com/JonnyKimUSA/status/1933219313390927943