The seven members of the Expedition 74 crew studied stem cells, packed up a cargo ship and maintained their bathroom this week, Dec. 8-12, 2025, on board the Worldwide House Station (ISS).
Orbital remark
“Considering, ‘I am certain everybody would wish to see a photograph of Earth,’ I took just a few photographs proper earlier than going to mattress. I feel the wonderful factor in regards to the ISS is you can see views like this with out even attempting,'” JAXA astronaut Kimiya Yui, an Expedition 74 flight engineer, wrote on social media on Thursday (Dec. 11).
Yui’s picture properly captures the “skies of blue and clouds of white” as sung by the long-lasting Louis Armstrong.
Science standing
Among the many analysis that was performed by the Expedition 74 crew aboard the house station this week was:
StemCellEx-IP1 — In an effort which will sometime result in methods to restore broken organs and tissue, NASA astronaut Zena Cardman studied stem cells below a microscope, observing their manufacturing in microgravity as in comparison with on Earth.
Digital — In a Roscosmos experiment that appears at how the vestibular system adapts to microgravity, Sergey Kud-Sverchkov and Sergei Mikaev traded off sporting a special set of VR (digital actuality) goggles to trace their imaginative and prescient. The research may result in creating extra countermeasures when readjusting to gravity.
Station conserving
The Expedition 74 crew additionally devoted time to sustaining the house station’s techniques, together with:
JEM DRCS — In a demo that has functions to future Artemis missions to the moon and in the end to Mars, JAXA astronaut Kimiya Yui put in and soundproofed the JEM Demonstration of CO2 Removing System within the station’s Kibo module. The experimental system traps carbon dioxide from the air and vents it overboard.
JAXA’s HTV-X1 — NASA astronauts Chris Williams and Mike Fincke, along with some assist from Zena Cardman and JAXA astronaut Kimiya Yui, continued making ready the cargo ship for its departure in January. Williams labored on loading refuse and no-longer-needed gear, whereas Fincke targeted on making ready a science rack for its switch from the house station to contained in the HTV-X.
Waste and Hygiene Compartment — Fincke additionally spent a few of his time this week servicing one of many house station’s restrooms, changing orbital plumbing elements within the Tranquility node.
Astronaut exercise
NASA astronaut Chris Williams resides out his boyhood dream as an Expedition 74 flight engineer.
“For way back to I can bear in mind, so once I was a bit child, I used to be at all times fascinated by exploration and specifically, house,” mentioned Williams. “I feel it’s a type of issues that a number of youngsters have a fascination with, and I simply by no means grew out of it. It’s one thing that has at all times been a degree of curiosity for me, and being an astronaut felt like the easiest way to discover house.”
Williams mentioned his path to flying in house and serving aboard the Worldwide House Station throughout an in-flight interview on Thursday (Dec. 11), with The Washington Publish. You possibly can watch the total dialogue within the video above.
By the numbers
As of Friday (Dec. 12), there are 7 individuals aboard the Worldwide House Station: Expedition 74 commander Mike Fincke and Zena Cardman and Chris Williams of NASA; JAXA (the Japan Aerospace Exploration Company) astronaut Kimiya Yui; Oleg Platonov, Sergey Kud-Sverchkov and Sergey Mikaev of Roscosmos, all flight engineers.
There are two docked crew spacecraft: SpaceX‘s Dragon “Endeavour” hooked up to the space-facing port of the Concord module and Roscosmos’ Soyuz MS-28 hooked up to the Earth-facing port of the Rassvet module.
There are 4 cargo spacecraft: Roscosmos’ Progress MS-31 (92P) docked to the space-facing port of the Poisk module, Progress MS-32 (93P) hooked up to the aft port of the Zvezda service module, Northrop Grumman’s Cygnus XL, the S.S. William C. “Willie” McCool, berthed to the Earth-facing widespread berthing mechanism (CBM) on the Unity node and Japan’s HTV-X1 hooked up to the Earth-facing CBM on the Concord node.
As of Friday, the house station has been repeatedly crewed for 25 years, 1 month and 10 days.
