SpaceX F9 / Crew Dragon : Crew-10 : KSC LC-39A : 14 March 2025 (23:03 UTC)

[ddspaceman]

ISS National Lab
@ISS_CASIS
After nearly six months onboard the ISS, astronauts of NASA�s SpaceX Crew-10 mission have safely returned to Earth. This weekend�s splashdown off the coast of California concludes a long-duration science expedition that supported dozens of investigations sponsored by the ISS National Laboratory�.

Seen here, NASA astronauts Anne McClain, top, and Nichole Ayers, right, use the space station�s Microgravity Science Glovebox to work on DNA Nano Therapeutics-Mission 2 from UConn/Eascra Biotech. #ISSExpedition #MicrogravityScience #Crew10 #SpaceScience #ScienceInSpace @uconn @eascrabiotech

https://twitter.com/ISS_CASIS/status/1954943498387324965

[ddspaceman]

COL Anne McClain

@AstroAnnimal
What a whirlwind these past few days have been. I�ll share more as I get settled. For now, we are glad to be back on the best planet in the solar system!

https://twitter.com/AstroAnnimal/status/1954957543677083882

[ddspaceman]

COL Anne McClain
@AstroAnnimal

This photo captures the chaos of departure day well. Everyone moving in 10 different directions - hatch inspections, suit up, cargo ops, exercise, regular daily ops, etc. Not as matchy-matchy as most crew photos, but definitely a realistic snapshot of a moment on @Space_Station!

https://twitter.com/AstroAnnimal/status/1954960423243112520

[DanClemmensen]

ISS National Lab
@ISS_CASIS
After nearly six months onboard the ISS, astronauts of NASA�s SpaceX Crew-10 mission have safely returned to Earth. This weekend�s splashdown off the coast of California concludes a long-duration science expedition that supported dozens of investigations sponsored by the ISS National Laboratory�.
Seen here, NASA astronauts Anne McClain, top, and Nichole Ayers, right, use the space station�s Microgravity Science Glovebox to work on DNA Nano Therapeutics-Mission 2 from UConn/Eascra Biotech. #ISSExpedition #MicrogravityScience #Crew10 #SpaceScience #ScienceInSpace @uconn @eascrabiotech

Sorry, but they launched on 14 March and Landed on 9 August. That's not even five months, so not "nearly six months". It was a good mission, but this (presumably accidental) exaggeration is not useful. This shortened mission is not the fault of the Crew-10 crew. It's a late consequence of the unexpected mission extension required for Crew-8 to respond to the Starliner CFT fiasco.

[ddspaceman]

https://www.gctc.ru/main.php?id=7248
GT:

Roscosmos cosmonaut Kirill Peskov undergoes first stage of post-flight rehabilitation
| Crews
August 11, 2025

The Crew-10 crew completed their mission in orbit on August 9, 2025, successfully splashing down in the Pacific Ocean. On board the Crew Dragon were NASA astronauts Anne McClain and Nicole Ayers, JAXA astronaut Takuya Onishi, and Roscosmos cosmonaut Kirill Peskov. They worked on the ISS for about five months, starting on March 16.

The crew splashed down normally. After 36 minutes, the side hatch of the Dragon spacecraft's return module, installed on the stern of the search and rescue ship, was opened. After 16 minutes, Kirill Peskov was evacuated aboard the rescue ship.

�Then everything was carried out according to the cyclogram in the ship�s medical compartment within an hour: removal of the spacesuit and compression suit, a medical examination by the crew doctor from the Cosmonaut Training Center, Alexander Vasin, the necessary medical procedures, including putting on and adjusting the Centaur prophylactic suit.�

Two hours and 43 minutes after splashdown, the crew left the search and rescue ship by helicopter and, after a 37-minute flight, set foot on Earth for the first time since being on space duty.

After arriving from California to Houston, the crew, accompanied by crew doctors, was taken to the Johnson Space Center's post-flight rehabilitation complex. The implementation of the post-flight examination and post-flight rehabilitation program is proceeding according to plan," said Alexey Grishin, head of the Johnson Space Center's medical department.

After arriving at the post-flight rehabilitation complex, Kirill Peskov was examined by a team of doctors of various specialties (therapeutic, ophthalmological, neurological, surgical, dental, ENT and others), and biological materials and an ECG were also examined.

The Center's medical specialists analyze Kirill's health dynamically and determine the tactics of rehabilitation measures. Adaptation occurs with the help of dosed physical exercises, massage, swimming, gymnastics in the pool, and therapeutic physical training.

The cosmonaut also observes quarantine restrictions. After a five-month stay in the closed system of the ISS, the cosmonaut's body may not cope with various infections, so in the first days after returning to Earth, it is necessary to minimize contacts with a large number of people.

After completing the acute adaptation period, Kirill Peskov will return to Russia, where he will continue his rehabilitation under the supervision of medical specialists at the Cosmonaut Training Center.

[ddspaceman]

大西卓哉 （JAXA宇宙飛行士）Takuya Onishi
@Astro_Onishi
Translated from Japanese by Grok
Houston is a car-centric society, so life without being able to drive is quite inconvenient, but this test serves as a benchmark for determining whether you can return to driving. 
We compare data from before and after the flight. 
The floor under your feet tilts or moves suddenly, but doing this with your eyes closed while shaking your head back and forth is pretty tough 😅

https://twitter.com/Astro_Onishi/status/1955088438887072254

[ddspaceman]

Cross post
大西卓哉 （JAXA宇宙飛行士）Takuya Onishi
@Astro_Onishi
Translated from Japanese by Grok
Good morning 😃
Rehabilitation is going smoothly, but the muscle soreness in my lower body is intense lol
Since I�m starting to have a bit more leeway, I think I�ll gradually talk about my return as well.
One of the preparations needed for returning to a gravity environment is compression garments.
I wear extremely tight underwear on my lower body to prevent blood from pooling downward after landing.

https://twitter.com/Astro_Onishi/status/1955237122262052951

[ddspaceman]

COL Anne McClain
@AstroAnnimal

Reconditioning starts immediately upon our return, no rest for the weary! The balance work is by far harder than the strength work � our small stabilizing muscles and vestibular systems have been pretty dormant. Also note how purple my legs are � my ankles and calves are swollen and the blood vessels are visible at the surface, a sign that my body is not quite adjusted to pumping blood up against the force of gravity. So we are in the gym daily for a couple months, doing specialized recovery training to help the body along.

https://twitter.com/AstroAnnimal/status/1955293941076557965

[ddspaceman]

NASA�s SpaceX Crew-10 Return to Ellington Field � Monday, August 11, 2025

[ddspaceman]

大西卓哉 （JAXA宇宙飛行士）Takuya Onishi
@Astro_Onishi
Translated from Japanese by Grok
In addition to the compression clothing I introduced yesterday, a few hours before splashdown, in my case, I consume 1 liter of water over about an hour and a half along with salt tablets. 
This is also to compensate for the decrease in bodily fluids in the upper body. 
Similarly, I received an IV drip immediately after exiting the spacecraft. 
In this regard, the expertise of the U.S. and Russia has a slight edge.

https://twitter.com/Astro_Onishi/status/1955594617770164572

[ddspaceman]

大西卓哉 （JAXA宇宙飛行士）Takuya Onishi
@Astro_Onishi
Translated from Japanese by Grok
While in space, our hearts no longer need to pump blood to the upper body against gravity, so they function like a pump with reduced output. Additionally, since bodily fluids tend to pool in the lower body due to gravity, without countermeasures, this could lead to anemia or, in severe cases, even loss of consciousness.
The photo shows my complexion about four hours after splashdown.

https://twitter.com/Astro_Onishi/status/1955597072813674771

[ddspaceman]

大西卓哉 （JAXA宇宙飛行士）Takuya Onishi
@Astro_Onishi
Translated from Japanese by Grok
Previously, I introduced one of the biggest concerns in current space medicine: the impact of long-term space stays on astronauts' eyes. Today, I underwent my first eye examination since returning.
The vision, which had progressed to presbyopia in space, has almost returned to pre-flight data.
The condition of my retina is also recovering, and every part of my body is starting to adjust back to Earth specifications.

https://twitter.com/Astro_Onishi/status/1955767285945077967

[ddspaceman]

大西卓哉 （JAXA宇宙飛行士）Takuya Onishi
@Astro_Onishi
Translated from Japanese by Grok
The latter half of this week, the first post-return motor function tests continue 💦

Yesterday's first session was, visually quite plain, but tough, with measurements of ankle strength and more.

The ankle area is one of the parts that's hard to train in space.
We do muscle training with an exercise called heel raises.

https://twitter.com/Astro_Onishi/status/1955950330543214859

[ddspaceman]

COL Anne McClain
@AstroAnnimal

How will an astronaut�s body react to doing a planetary EVA after being in microgravity for an extended period of time? Only one way to find out! I did a series of tasks in Mars gravity 3 days after return, and compared it to how I felt and my performance doing the same tasks preflight. I will run a second set of the same tests next week to test recovery times. Tests included some finesse-type tasks, like running and connecting cables and digging up rock samples, some strength, where I carried heavy sandbags back and forth for 5 minutes, and some endurance, walking on a treadmill at various incline.

Physical performance wasn�t as bad as you�d imagine, but I think that�s wholly due to the exercise program we have on @Space_Station, with a bike, treadmill, and weights available. Spending two hours a day working cardio and putting bones and muscles under heavy loads is critical to maintaining physical capacity, muscle strength, and bone density. I also believe extensive training preflight in realistic conditions to get the muscle memory of the tasks will be crucial.

https://twitter.com/AstroAnnimal/status/1955990754955870433

[catdlr]

NASA Space Operations

@NASASpaceOps

After spending almost five months in space,
@NASA�s @SpaceX Crew-10 astronauts will discuss their science mission aboard the@Space_Station during a news conference at 4:15 p.m. EDT, Wednesday, Aug. 20, from @NASA_Johnson in Houston.

NASA astronauts Anne McClain and Nichole Ayers, and JAXA (Japan Aerospace Exploration Agency) astronaut Takuya Onishi will answer questions about their mission. The crew returned to Earth on Aug. 9.

Learn more: https://nasa.gov/news-release/nasas-spacex-crew-10-astronauts-to-discuss-science-mission/

https://twitter.com/NASASpaceOps/status/1956024868534665361

[ddspaceman]

大西卓哉 （JAXA宇宙飛行士）Takuya Onishi
@Astro_Onishi
Translated from Japanese by Grok
For the data collection after the return of the "absolutely no running" study, we conducted tests to measure muscle strength and endurance, including exercises like push-ups and grip strength tests. 
On the ISS, I was doing strength training six days a week, so I feel that muscle strength in easily trained areas hasn�t declined, but I do notice some decline in other areas. 
I�m definitely going to have muscle soreness tomorrow 😫

https://twitter.com/Astro_Onishi/status/1956128677659332767

[ddspaceman]

大西卓哉 （JAXA宇宙飛行士）Takuya Onishi
@Astro_Onishi
Translated from Japanese by Grok
Since the data collected shortly after returning is valuable (as the body gradually adapts to gravity), various research data collection and physical examinations continue. 
However, while on the ISS we had to handle everything from preparation to measurement and cleanup ourselves, on the ground, the researchers take care of everything, which makes things much easier. 
The maximum oxygen uptake test is an exception, though 😫

https://twitter.com/Astro_Onishi/status/1956498344521482420

[ddspaceman]

大西卓哉 （JAXA宇宙飛行士）Takuya Onishi
@Astro_Onishi
Translated from Japanese by Grok
It�s been a week since I returned. Today, I did some rehab by walking in the pool or doing light breaststroke ← a person who can�t do freestyle.

Daily life is mostly unaffected, but there are still some movements or parts of my body that I didn�t use in space that feel awkward.

For example, the soles of my feet.
They�re swollen, and it hurts if I stand for too long.

Instead, since there was hardly any strain on the soles of my feet in space, they became ridiculously clean compared to usual 😂

https://twitter.com/Astro_Onishi/status/1956828544799019093

[ddspaceman]

大西卓哉 （JAXA宇宙飛行士）Takuya Onishi
@Astro_Onishi
Translated from Japanese by Grok
As for other inconveniences,

⚫︎ When standing or walking for a long time, the joints around the knees or the lower part of the spine hurt.

⚫︎ Sitting on a chair for a while causes buttock pain.

That�s about it, I suppose.
These are also the areas where my grandparents often seemed to struggle, so I�m realizing the similarities between space medicine and elderly care.

https://twitter.com/Astro_Onishi/status/1957068326527451233

[ddspaceman]

大西卓哉 （JAXA宇宙飛行士）Takuya Onishi
@Astro_Onishi
Translated from Japanese by Grok
Since last night while sleeping, I started feeling tension in the back of my waist, and even after waking up, there�s pain when I try to bend forward. 
Whether standing or sitting, it�s a part that supports the weight of my upper body, so fatigue might have built up without me noticing. 
After consulting with my doctor and rehab trainer, I decided to take a break from rehab today 🤕

https://twitter.com/Astro_Onishi/status/1957566939082928203