Cosmonauts Get Ready for Friday Spacewalk, New Science Kicks Off

Cosmonauts (from left) Pyotr Dubrov and Oleg Novitskiy prepare Russian Orlan spacesuits.
Cosmonauts (from left) Pyotr Dubrov and Oleg Novitskiy prepare Russian Orlan spacesuits.

Two cosmonauts will exit the International Space Station on Friday to begin powering up the new Russian science module. While they prepare today for the excursion, the rest of the Expedition 65 crew focused on new science experiments and reviewed an upcoming U.S. spacewalk.

Russia’s Nauka multipurpose laboratory module, attached to the station since July 29, will be connected to the station’s ethernet and power systems during a spacewalk set to start Friday at 10:35 a.m. EDT. Roscosmos Flight Engineers Oleg Novitskiy and Pyotr Dubrov will exit the Poisk airlock to begin about seven hours of routing and mating cables on the outside of Nauka.

The spacewalking cosmonauts were joined on Thursday by NASA Flight Engineer Mark Vande Hei and Commander Akihiko Hoshide of the Japan Aerospace Exploration Agency (JAXA) for a review of Friday’s spacewalk procedures. Vande Hei will also assist the spacewalkers in and out of their Russian Orlan spacesuits inside the Poisk module.

Novitskiy and Dubrov have another spacewalk scheduled on Sept. 9 to continue outfitting Nauka with handrails and cables. Both spacewalks will be broadcast live on NASA TV, the NASA app, and the agency’s website.

New space investigations recently delivered aboard the SpaceX Cargo Dragon are just getting under way aboard the orbiting lab. NASA Flight Engineer Megan McArthur kicked off the Genes In Space-8 study today to explore how medicines may act differently in microgravity. A student-designed experiment, started today by NASA Flight Engineer Shane Kimbrough, looks at the mating habits of tardigrades living inside mixture tubes and stowed in a NanoRacks research device.

Kimbrough also swapped out science components inside the Fluids Integrated Rack. Hoshide worked in the Electrostatic Levitation Furnace cleaning and removing sample cartridges. Vande Hei installed a new incubator, a temperature controlled device that supports a variety of biology and physics research, in JAXA’s Kibo laboratory module.

The next spacewalk following the Russian excursions is planned for Sept. 12 with Hoshide and Pesquet. The duo reviewed procedures today tasked for the scheduled six-and-a-half hour excursion. They will exit the U.S. Quest airlock to modify the Port-4 (P4) truss structure preparing it for a new Roll-Out Solar Array due to arrive next year aboard the Space Cargo Dragon space freighter.

New Dragon Science Under Way Ahead of Friday’s Spacewalk

The SpaceX Cargo Dragon vehicle approaches the International Space Station on Aug. 30, 2021.
The SpaceX Cargo Dragon vehicle approaches the International Space Station on Aug. 30, 2021.

The Expedition 65 crew continued unloading a variety of cargo including rodents from the SpaceX Cargo Dragon today. The International Space Station residents are also headlong into preparations for two Russian spacewalks and one U.S. spacewalk.

Flight Engineers Shane Kimbrough of NASA and Thomas Pesquet of ESA (European Space Agency) spent Wednesday morning transferring rodents from the Cargo Dragon into a habitat in the U.S. Destiny laboratory module. The animals are being observed for the Rodent Research Demonstration-1 experiment that is exploring how microgravity affects the healing process.

Space botany is also a critical part of the station research program as scientists learn to support astronauts longer and farther in space. During a break in today’s rodent transfers, Kimbrough serviced petri plates for the new APEX-08 investigation that is studying how plants adapt to space-caused stress.

NASA Flight Engineers Megan McArthur and Mark Vande Hei also partnered together unpacking science gear from Dragon. McArthur installed a new NanoRacks module, recently delivered aboard the U.S. space freighter, during the morning that will soon host science experiments. Vande Hei helped out in the afternoon continuing to unload the more than 4,800 pounds of research, crew supplies and hardware.

Pesquet will join Commander Akihiko Hoshide of the Japan Aerospace Exploration Agency (JAXA) for a spacewalk on Sept. 12 to modify the station’s Port-4 (P4) truss structure. They will install a modification kit that will prepare the P4 for future Roll-Out Solar Array installation work. Hoshide worked Wednesday afternoon cleaning their U.S. spacesuit cooling loops today with assistance from Vande Hei.

The first two spacewalks will be conducted by Roscosmos Flight Engineers Oleg Novitskiy and Pyotr Dubrov. The duo will first exit the Poisk airlock on Friday at 10:35 a.m. EDT to route and mate power and ethernet cables on the Nauka multipurpose laboratory. The second spacewalk will be on Sept. 9 to install handrails and finish the cable work on Nauka. NASA TV will broadcast both excursions live.