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Spacewalks Preps Continue, NASA Astronaut Continues Record-Breaking Mission

Two NASA astronauts are assembling gear today they will install on the International Space Station during an upcoming spacewalk. The rest of the Expedition 66 crew focused on life science, space physics gear, and orbital maintenance.

NASA Flight Engineers Raja Chari and Kayla Barron began assembling modification kits today to ready the station’s truss structure for new roll-out solar arrays during the first spacewalk. The roll-out solar arrays will be delivered on an upcoming SpaceX Cargo Dragon mission and installed at a later date. The duo will set their U.S. spacesuits to battery power at 7:50 a.m. on March 15, signifying the beginning of their planned six-and-a-half-hour spacewalk. The second spacewalk on March 23 will see more roll-out solar array preparations by two yet to be named astronauts.

Roll-out solar array technology will not only augment the space station’s existing solar arrays and power system, they will also be used to power the Lunar Gateway. Gateway is a space station developed by NASA, the Canadian Space Agency, ESA (European Space Agency), and the Japan Aerospace Exploration Agency that will orbit the Moon and will serve as a hub for crew visiting the lunar surface and beyond. Gateway will enable new scientific investigations in the cis-lunar environment during crewed and uncrewed periods.

As usual, science is always ongoing aboard the space station, both remotely and with astronaut participation, as crew members explored how microgravity affects human physiology on Thursday. NASA Flight Engineers Mark Vande Hei and Tom Marshburn partnered together in the Kibo laboratory module to study what happens to eye structure and visual function in weightlessness. Research operations were conducted inside the Life Science Glovebox and may provide insights and inform treatments for eye conditions in space and on Earth.

Astronaut Matthias Maurer of ESA (European Space Agency) collected his urine samples and stowed them in a science freezer for future analysis to understand how his body is adapting to the space environment. Maurer then moved on and replaced parts inside the Electromagnetic Levitator, a physics research facility that enables safe, high-temperature observations of the thermophysical properties of metallic alloys.

Vande Hei reached 328 days in space today passing NASA astronaut Christina Koch’s record set back on Feb. 6, 2020. He will break NASA’s all-time single spaceflight record of 340 days on March 15 set by NASA astronaut Scott Kelly back on March 1, 2016. Vande Hei will return to Earth on March 30 having achieved a NASA record-breaking 355 days on orbit.

Commander Anton Shkaplerov of Roscosmos was on duty on Thursday replacing life support gear in the station’s Russian segment. Flight Engineer Pyotr Dubrov worked on computer and video gear then checked thermal hardware in the Nauka multipurpose laboratory module.

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Mark Garcia

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Advanced Physics, Human Research as Crew Readies for Pair of Spacewalks

The seven-member Expedition 66 crew juggled a variety of science experiments on Wednesday including space physics and human research. Four International Space Station astronauts also reviewed procedures for a pair of spacewalks set to begin in less than two weeks.

A new experiment on the space station is using artificial intelligence to help process complex glasses in microgravity. NASA Flight Engineer Kayla Barron began setting up hardware for the Intelligent Glass Optics investigation in the Microgravity Science Glovebox today. The advanced physics study may provide insights into manufacturing systems for Earth and space including communications, aerospace, and medical diagnostics.

Barron also joined fellow flight engineers Raja Chari and Thomas Marshburn from NASA and Matthias Maurer from ESA (European Space Agency) to prepare for two upcoming spacewalks to continue modifying the orbiting lab’s power system. The quartet reviewed the tools and procedures that Barron and Chari will use on March 15 when they exit the U.S. Quest airlock to ready the station for its third roll-out solar array. The second excursion will be on March 23 with two astronauts yet to be named. NASA TV will begin its live spacewalk coverage at 7:50 a.m. EST on both days.

At the beginning of the day, Chari assisted Marshburn and Maurer as they collected their blood, saliva, and urine samples. The samples were stowed in a science freezer for later analysis as part of the long-running Repository investigation. That study looks at a bank of biological specimens collected from station astronauts over the years for insights into the physiological changes occurring in humans living in space.

NASA Flight Engineer Mark Vande Hei worked throughout the day inside the Kibo laboratory module on payload hardware that will soon be placed outside the station in the harsh environment of space. Vande Hei is also on track to surpass two NASA single spaceflight records this month. He will pass NASA astronaut Christina Koch’s mark of 328 days on March 3, then he will break NASA astronaut Scott Kelly’s record of 340 days on March 15. When Vande Hei returns to Earth on March 30, he will hold the NASA single spaceflight record having spent 355 days in space.

The orbiting lab’s two cosmonauts, Commander Anton Shkaplerov and Flight Engineer Pyotr Dubrov, replaced life support components in the station’s Russian segment.

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Mark Garcia

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