New Expedition#73 Crew Photos: Part 2 | International Space Station
NASA astronaut and Expedition 73 Flight Engineer Anne McClain celebrates her 46th birthday with a cake, gifts, and cards aboard the International Space Station's Unity module.
NASA astronaut and Expedition 73 Flight Engineer Nichole Ayers cleans and services life support components that are part of the Oxygen Generation System rack located inside the International Space Station's Destiny laboratory module.
NASA astronaut and Expedition 73 Flight Engineer Jonny Kim stows research samples inside a cryogenic storage unit for installation inside a science freezer for preservation inside the International Space Station's Destiny laboratory module. Offically called the Minus Eighty-Degree Laboratory Freezer for ISS, or MELFI, the ultra-cold storage unit enables space biology research by preserving biological samples for analysis including blood, saliva, urine, microbes, and more.
Japan Aerospace Exploration Agency (JAXA) astronaut and Expedition 73 Commander is pictured during maintenance operations on the Japanese robotic arm's Small Fine Arm inside the Kibo laboratory module. The Small Fine Arm is used for precise and dexterous robotic maneuvers when grappling small components or payloads on the outside of the International Space Station. There are two other robotic arms on the outside of the orbital outpost including the Canadarm2 robotic arm and the European robotic arm (ERA). Canadarm2 can be used to maneuver spacecraft, spacewalkers, and large payloads. ERA can also be used to maneuver spacewalkers and space station components.
NASA astronaut and Expedition 73 Flight Engineer Anne McClain checks out a pair of spacesuits during routine maintenance operations inside the International Space Station's Quest airlock.
NASA astronaut and Expedition 73 Flight Engineer Nichole Ayers works inside the Kibo laboratory module to test imaging operations of a 3D research microscope, also known as the Extant Life Volumetric Imaging System, or ELVIS. The specialized 3D imaging device, located in Kibo's Life Science Glovebox, could be used to monitor water quality, detect potentially infectious organisms, and study liquid mixtures and microorganisms in space and on Earth.
NASA astronaut and Expedition 73 Flight Engineer Jonny Kim works on spacesuit maintenance operations inside the International Space Station's Quest airlock.
NASA astronaut and Expedition 73 Flight Engineer Nichole Ayers checks out a spacesuit stowed inside the International Space Station's Quest airlock.
NASA and Axiom Space are postponing the launch of Axiom Mission 4 to the International Space Station. As part of an ongoing investigation, NASA is working with Roscosmos to understand a new pressure signature, after the recent post-repair effort in the aft most segment of the International Space Station’s Zvezda service module.
Cosmonauts aboard the space station recently performed inspections of the pressurized module’s interior surfaces, sealed some additional areas of interest, and measured the current leak rate. Following this effort, the segment now is holding pressure. The postponement of Axiom Mission 4 provides additional time for NASA and Roscosmos to evaluate the situation and determine whether any additional troubleshooting is necessary. NASA defers to Roscosmos to answer specific questions about the Zvezda module.
A new launch date for the fourth private astronaut mission will be provided once available.
Expedition 73 Crew
Station Commander: Japan Aerospace Exploration Agency (JAXA) Flight Engineer Takuya Onishi
Roscosmos (Russia) Flight Engineers: Kirill Peskov, Sergey Ryzhikov, Alexey Zubritskiy
NASA Flight Engineers: Anne McClain, Nichole Ayers, Jonny Kim
An international partnership of space agencies provides and operates the elements of the International Space Station (ISS). The principals are the space agencies of the United States, Russia, Europe, Japan, and Canada.
For more information about STEM on Station:
Image Credit: NASA's Johnson Space Center
Image Dates: May 29-June 10, 2025
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