Astronauts complete record-breaking solar array installation on International Space Station.

NASA astronauts Woody Hoburg and Steve Bowen completed their second spacewalk in six days to install and deploy another roll-out solar array to augment the power system on the International Space Station. The new ISS Roll-Out Solar Arrays (iROSA) were delivered to the space station by a SpaceX Cargo Dragon supply spacecraft. The solar arrays are designed to partially cover the space station’s original solar panels, which have degraded over time, and come with improved efficiency to boost the station’s power output back above original levels. NASA is planning to order a final pair of roll-out solar arrays to complete the space station’s electrical upgrade.