Watch as astronauts step out of ISS for latest spacewalk

Astronauts stepped out of the International Space Station to install an ISS Roll-Out Solar Array (iROSA) on the starboard truss.

Steve Bowen and Woody Hoburg, crew members of Expedition 69, exit the ISS‘s Quest airlock for a spacewalk expected to begin at around 2pm and last six hours.

Hoburg and Bowen installed the iROSA 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 per cent increase in power production over the station’s current arrays.