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NASA Spacewalkers Finish Installing Roll-Out Solar Array

Expedition 69 Flight Engineers Woody Hoburg and Steve Bowen of NASA concluded their spacewalk at 2:17 p.m. EDT after 5 hours and 35 minutes.

Hoburg and Bowen completed their major objective to install an IROSA (International Space Station Roll-Out Solar Array) to augment power generation for the 1B power channel on the station’s starboard truss structure.

The new array is 60 feet long by 20 feet wide (18.2 meters by 6 meters) and is shading a little more than half of the original array, which is 112 feet long by 39 feet wide. Each new IROSA produces more than 20 kilowatts of electricity and together enable a 30% increase in power production over the station’s current arrays.

NASA and Boeing have a plan in place for a fourth set of roll-out arrays to further augment the International Space Station’s power supply. These arrays, which would be the seventh and eighth installed on space station, are targeted for delivery to the orbital outpost in 2025.

It was the 265th spacewalk in support of space station assembly, upgrades, and maintenance. The spacewalk marked the second for Hoburg and tenth for Bowen, tying him for the most spacewalks by a U.S. astronaut along with Mike Lopez-Alegria, Bob Behnken, Peggy Whitson, and Chris Cassidy.

Hoburg and Bowen are in the midst of a science mission living and working aboard the microgravity laboratory to advance scientific knowledge and demonstrate new technologies for future human and robotic exploration missions, including lunar missions through NASA’s Artemis program.

Learn more about station activities by following the space station blog, @space_station and @ISS_Research on Twitter, as well as the ISS Facebook and ISS Instagram accounts.

Get weekly video highlights at: https://roundupreads.jsc.nasa.gov/videoupdate/

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Mark Garcia

Astronauts Begin Spacewalk to Install Roll-Out Solar Array

Expedition 69 Flight Engineers Woody Hoburg and Steve Bowen of NASA began a spacewalk at 8:42 a.m. EDT to install an IROSA (International Space Station Roll-Out Solar Array) to augment power generation for the 1B power channel on the station’s starboard truss structure.

Hoburg, designated extravehicular crew member 1 (EV1), is wearing a suit with red stripes. Bowen, designated extravehicular crewmember 2 (EV 2), is in an unmarked suit. Coverage of the spacewalk continues on NASA Television, the NASA app, and the agency’s website.

Learn more about station activities by following the space station blog, @space_station and @ISS_Research on Twitter, as well as the ISS Facebook and ISS Instagram accounts.

Get weekly video highlights at: https://roundupreads.jsc.nasa.gov/videoupdate/

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Mark Garcia

NASA Astronauts Prepare for Spacewalk Live on NASA TV

NASA Television coverage of today’s spacewalk with NASA astronauts Woody Hoburg and Steve Bowen is now underway and is also available on the NASA app, the space station blog and the agency’s website.

The crew members of Expedition 69 are preparing to exit the International Space Station‘s Quest airlock for a spacewalk expected to begin about 8:55 a.m. EDT and last about six hours.

Hoburg and Bowen will install an IROSA (International Space Station Roll-Out Solar Array) to augment power generation for the 1B power channel on the station’s starboard truss structure.

The new array is 60 feet long by 20 feet wide (18.2 meters by 6 meters) and will shade a little more than half of the original array, which is 112 feet long by 39 feet wide. Each new IROSA will produce more than 20 kilowatts of electricity, and once this array is installed, will enable a 30% increase in power production over the station’s current arrays.

Hoburg will serve as extravehicular crew member 1 (EV 1) and will wear a suit with red stripes. Bowen will serve as extravehicular crew member 2 (EV 2) and will wear the unmarked suit. The spacewalk will be the tenth for Bowen and the second for Hoburg.

Learn more about station activities by following the space station blog, @space_station and @ISS_Research on Twitter, as well as the ISS Facebook and ISS Instagram accounts.

Get weekly video highlights at: https://roundupreads.jsc.nasa.gov/videoupdate/

Get the latest from NASA delivered every week. Subscribe here: www.nasa.gov/subscribe

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Mark Garcia

Astronauts Ready for Thursday’s Spacewalk

Wednesday was a busy day for the Expedition 69 crew’s astronauts and cosmonauts as they continued preparing for two different spacewalks at the International Space Station. The first spacewalk will see two astronauts install another roll-out solar array on Thursday. The second spacewalk will take place a week later when two cosmonauts replace hardware and conduct photographic inspections.

Mission managers gave the “go” for Thursday’s spacewalk with NASA astronauts Woody Hoburg and Stephen Bowen. The duo will set their spacesuits to battery power at 8:55 a.m. signifying the official start of their second spacewalk together. The duo will spend about six hours installing a roll-out solar array on the opposite side of the starboard truss segment where they installed the previous roll-out solar array on Friday, June 9. NASA TV begins its live broadcast of the spacewalk at 7:30 a.m. on Thursday on the agency’s app and website.

Hoburg and Bowen started Wednesday readying their spacesuits inside the Quest airlock where they will exit the station into the vacuum of space on Thursday. After lunchtime, the duo organized their spacewalking tools and tethers inside Quest with assistance from NASA Flight Engineer Frank Rubio. Finally, the three NASA astronauts joined Flight Engineer Sultan Alneyadi of UAE (United Arab Emirates) for a final review of the spacewalk procedures and robotics activities necessary to support the solar array installation job.

Two cosmonauts are also getting ready for their own spacewalk scheduled for June 22 for maintenance on the outside of the orbital outpost’s Roscosmos segment. Commander Sergey Prokopyev and Flight Engineer Dmitri Petelin spent Wednesday gathering spacewalking hardware, testing support equipment, and configuring their spacesuit components. The duo will exit the Poisk airlock next Thursday and spend about seven hours replacing communications and science hardware and photographing the condition of the Zvezda service module.

Roscosmos Flight Engineer Andrey Fedyaev started his morning working on life support maintenance tasks. Next, he activated and handed over radiation sensors to Hoburg and Bowen who will wear them on their spacesuits during Thursday’s spacewalk. Fedyaev later exercised on a treadmill as ground specialists monitored real-time video of his workout and hardware operations.

Learn more about station activities by following the space station blog, @space_station and @ISS_Research on Twitter, as well as the ISS Facebook and ISS Instagram accounts.

Get weekly video highlights at: https://roundupreads.jsc.nasa.gov/videoupdate/

Get the latest from NASA delivered every week. Subscribe here: www.nasa.gov/subscribe

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Mark Garcia

Expedition 69 Crew Members Gearing Up for More Spacewalks

Four Expedition 69 astronauts practiced simulated robotic maneuvers on a computer today to support a spacewalk scheduled for Thursday. Three cosmonauts are gearing up for another spacewalk planned to take place next week from the Roscosmos segment of the International Space Station.

NASA astronauts Stephen Bowen and Woody Hoburg are preparing for their second spacewalk together set to start at 8:55 a.m. EDT on Thursday. The spacewalkers will install the orbital outpost’s sixth roll-out solar array on the opposite side of the starboard truss segment opposite where they installed the fifth roll-out solar array on Friday, June 9. NASA TV will begin its live broadcast of the spacewalk at 7:30 a.m. on the agency’s app and website.

Bowen and Hoburg joined Flight Engineers Frank Rubio of NASA and Sultan Alneyadi of UAE (United Arab Emirates) for robotics training on a computer during Tuesday afternoon. The quartet practiced simulated Canadarm2 robotic arm maneuvers necessary to support Bowen and Hoburg when they remove the roll-out solar array from its flight support equipment and install it on the starboard truss. The two spacewalkers also prepared their tools inside the Quest airlock, printed checklists they will attach to their spacesuit cuffs, and reviewed more spacewalk procedures on a computer.

The four astronauts joined each other at the end of the day for eye checks as Bowen and Hoburg scanned the eyes of Rubio and Alneyadi using standard medical imaging gear found in an optometrist’s office. Rubio and Alneyadi spent the first part of their day servicing a variety of exercise equipment and orbital plumbing hardware.

Commander Sergey Prokopyev and Dmitri Petelin spent all day Tuesday preparing for a spacewalk planned for Thursday, June 22. The duo studied procedures and located tools they will use when they exit the orbital outpost’s Poisk airlock next week. The two cosmonauts will remove and replace communications and science hardware and photograph the condition of the Zvezda service module during next week’s spacewalk.

Roscosmos Flight Engineer Andrey Fedyaev worked throughout Tuesday maintaining Zvezda’s Elektron oxygen generator and replacing smoke detectors in the Nauka science module. At the end of the day, Fedyaev worked out on the advanced resistive exercise device while ground specialists monitored his workout form and hardware operations.

Learn more about station activities by following the space station blog, @space_station and @ISS_Research on Twitter, as well as the ISS Facebook and ISS Instagram accounts.

Get weekly video highlights at: https://roundupreads.jsc.nasa.gov/videoupdate/

Get the latest from NASA delivered every week. Subscribe here: www.nasa.gov/subscribe

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Mark Garcia