Astronauts successfully roll out and power up new solar arrays on ISS

Astronauts aboard the International Space Station have undertaken three spacewalks over a 10-day period in order to fit a new set of solar arrays to the exterior hull of the ageing spacecraft. The two newly installed roll-out solar arrays will eventually be augmented by a further four arrays that will provide power to the station as it serves as a springboard for the Artemis Moon exploration program.

The International Space Station is a technological marvel that, since November 2000 has been the only outpost beyond Earth’s atmospheric shell to continuously play host to a human crew. It measures over 365 ft across, and has been fitted with radiation shielding and other technologies needed to keep a crew of astronauts alive, well and productive for prolonged periods of time.

However, while the station is extremely well engineered, parts of it are now over two decades old, and starting to show signs of degradation. As it stands, NASA and its partners are locked in a constant cycle of repair, refurbishment and replacement in order to keep the station in working order.

Recently, NASA astronaut Shane Kimbrough and ESA astronaut Thomas Pesquet embarked on a series of three spacewalks to upgrade the station’s power generating capacity, by adding a further two solar arrays to the exterior of the outpost.

On June 20, the team ventured through the airlock for the second spacewalk. Kimbrough and Pesquet began by removing the panels from their transport tubes and then proceeded to align and connect the first array’s data and power cables.

The latter task was completed when the station passed into it’s night-time phase, during which the Earth was positioned between the ISS and the Sun – in order to ensure that there was no risk of the team getting an electric shock. But wasn’t without its issues either. Pequet was forced to use a length of wire for an improvised repair when Kimbrough’s camera and lighting system came partially detached from the helmet mount.

During the final spacewalk, which took place on June 25, the astronaut’s were able to attach and connect the cables of the second solar array, and the two new additions have reportedly been supplying power to the station.