ISS Astronauts Prep for Next Spacewalk, Explore Space Biology and Physics

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ISS Astronauts Prep for Next Spacewalk, Explore Space Biology and Physics

NASA astronaut and Expedition 68 Flight Engineer Nicole Mann is pictured in her Extravehicular Mobility Unit, or spacesuit, during her first spacewalk on January 20, 2023. She and fellow spacewalker Koichi Wakata (out of frame) of the Japan Aerospace Exploration Agency installed a modification kit on the International Space Station’s starboard truss structure that will enable the future installation of the orbiting lab’s next roll-out solar array. Credit: NASA

Following three days of advanced bone repair studies while getting ready for an upcoming spacewalk, the Expedition 68 astronauts are now cleaning up. Meanwhile, the three cosmonauts aboard the International Space Station (ISS) continued their space physics and Earth imagery work and also maintained orbital lab systems.

Cassada also worked on space agriculture on Thursday, collecting leaves from thale cress plants housed inside the Advanced Plant Habitat for stowage and analysis on Earth. He later tended to tomato plants growing inside the Veggie space botany facility for the Veg-05 experiment. Both studies are taking place inside the Columbus laboratory module.

The next spacewalk to continue upgrading the orbiting lab’s power generation system is planned for February 2. Two spacewalkers will exit the Quest airlock in their Extravehicular Mobility Units (EMUs), or spacesuits, to finish installing a modification kit on the starboard truss structure. The hardware installation job will ready the space station for its next roll-out solar array. Ahead of the upcoming spacewalk, spacesuit gloves and tethers were inspected.

Commander Sergey Prokopyev continued more space physics experiment runs on Thursday as he explored how clouds of highly charged particles, or plasma crystals, behave in microgravity. Flight Engineer Dmitri Petelin of Roscosmos spent his day on life support maintenance before partnering with fellow cosmonaut Anna Kikina for ultrasound eye scans. Kikina resumed her Earth observations using ultraviolet imaging hardware to obtain a map of the nighttime glow of Earth’s atmosphere.