![]() Ground teams activated the backup control center systems located at the agency’s Marshall Space Flight Center in Huntsville, Alabama, to regain communications with the space station while engineers addressed the power issue in Houston. The issue occurred during planned upgrades to the ground power system to ensure the mission control power grid remains robust and reliable. Mission Control Center Houston is back to normal operations after full communication with the International Space Station was restored on July 25, following a loss of power to the space station’s primary ground communication equipment at NASA’s Johnson Space Center. Simultaneously, Fedyaev carried out inventory in the Functional Cargo Block, also known as the Zarya module, while Petelin conducted experiments studying liquid phases in microgravity. Prior to the training, Prokopyev undertook maintenance tasks in the Zvezda service module. Together, they completed a second set of safety drills. This tool, provided by the Japanese Aerospace Exploration Agency ( JAXA), allows for the capture of fluorescent images of biological samples.Īt the day’s end, Rubio was joined by Alneyadi, Hoburg, Bowen, and Roscosmos’ crew members, Commander Sergey Prokopyev and Flight Engineers Dmitri Petelin and Andrey Fedyaev. He subsequently completed maintenance tasks on the Confocal Space Microscope. The morning also saw NASA Flight Engineer Frank Rubio performing computer maintenance in the Japanese Experiment Module. These measurements assist researchers in better predicting eye changes in future long-duration spaceflights. ![]() ![]() The ISAFE device uses ultrasound to measure changes in the eye, brain, and blood vessels under microgravity. In a microgravity environment, blood and fluids shift toward the head, potentially causing structural changes to the eye. Later in the afternoon, NASA astronaut Stephen Bowen, accompanied by Hoburg, undertook ISAFE measurements. ![]()
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