The International Space Station remained busy on September 9 as the Expedition 75 crew combined medical research, materials science, spacesuit work and Earth observation.

Medical scans help researchers study the human body

Jessica Meir and Anil Menon worked with Anna Kikina and Pyotr Dubrov on scheduled vein scans using the Ultrasound 3 system. The measurements help researchers understand how living in microgravity can affect blood flow and the human body during long missions.

Science inside the Kibo laboratory

Sophie Adenot worked with the Electrostatic Levitation Furnace in Japan’s Kibo laboratory module. The facility allows researchers to heat and study materials while they are floating without direct contact, helping scientists measure properties that are difficult to test under normal conditions.

Keeping spacesuits and life-support systems ready

The crew also handled practical maintenance. Anil Menon worked on a spacesuit component that is scheduled to return to Earth for refurbishment, while Jack Hathaway replaced filters that help remove particles, gases and odors from the station’s atmosphere.

Watching Earth from orbit

Anna Kikina, Pyotr Dubrov and Andrey Fedyaev worked with Earth-observation equipment. The cameras can capture landmarks and events such as storms, wildfires and volcanic activity in different wavelengths, giving researchers views that can reveal details beyond normal visible-light photography.

Preparing equipment for future operations

Kikina and Dubrov inspected custom seat liners used for Soyuz return operations. Fedyaev also worked on orbital plumbing hardware and checked equipment stored inside the station’s service module.

Why this work matters

Life aboard the ISS is not only about keeping the station running. Daily experiments produce information that can help researchers understand human health, materials and technology in microgravity. Earth-observation work can also support research into changes happening on our planet.

For the latest mission information, readers should also check official NASA updates. ISS Tracker independently summarizes public information to make it easier to understand.

Source: NASA International Space Station update published September 9, 2026.