NASA astronaut Drew Feustel is pictured tethered to the International Space Station just outside of the Quest airlock during a spacewalk he conducted with fellow NASA astronaut Ricky Arnold (out of frame) on June 14, 2018. Credit: NASA
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NASA astronauts Tracy C. Dyson and Mike Barratt will exit the station’s Quest airlock to complete the removal of a faulty electronics box, called a radio frequency group, from a communications antenna on the starboard truss of the space station. The pair also will collect samples for analysis to understand the ability of microorganisms to survive and reproduce on the exterior of the orbiting laboratory.
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
Spacewalk Objectives and Crew Experience
Dyson will serve as spacewalk crew member 1 and will wear a suit with red stripes. Barratt will serve as spacewalk crew member 2 and will wear an unmarked suit. U.S. spacewalk 90 will be the fourth spacewalk for Dyson and the third spacewalk for Barratt. It is the 271st spacewalk in support of space station assembly, maintenance, and upgrades.
U.S. Spacewalk 90 was initially scheduled for June 13 but did not proceed as scheduled because of a spacesuit discomfort issue.
NASA astronaut Mike Hopkins, Expedition 38 Flight Engineer, on December 24, 2013, spacewalk. Credit: NASA
Second Spacewalk and Future Plans
The second spacewalk is scheduled to begin at 9 a.m. July 2, and will last about six and a half hours. NASA will provide live coverage beginning at 7:30 a.m. Astronauts will remove and replace a gyroscope assembly, relocate an antenna, and prepare for future Alpha Magnetic Spectrometer upgrades.
NASA will stream the spacewalk on NASA+, NASA Television’s public channel, the NASA app, YouTube, and the agency’s website.
Following the completion of U.S. Spacewalk 90, NASA will provide an update with participating crew members for U.S. Spacewalk 91. It is the 272nd spacewalk in support of the space station.
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