by NASA to launch in the trunk of the SpaceX Dragon 2 cargo spacecraft from early June 2021 to early 2023, aboard SpaceX CRS-22, CRS-26, and CRS-28. These arrays, half the width of the existing wings, are intended to be deployed along the central part of the wings between half and two-thirds of their length, and their planes are canted at a 10° angle above the plane of the existing solar array wings. Work to install iROSA's support brackets on the P6 truss mast cans holding the Solar Array Wings was initiated by the crew members of Expedition 64 in late February 2021. After the first pair of arrays were delivered in early June, a spacewalk on 16 June by members Shane Kimbrough and Thomas Pesquet of Expedition 65 to place one iROSA array on the 2B power channel and mast can of the P6 truss was successful until a spacesuit computer malfunctioned and the iROSA encountered technical problems with deployment, resulting in the spacewalk being cut short early, having lasted 7 hours and 15 minutes. Two more spacewalks, on 20 and 25 June and lasting between 6 hours 28 minutes and 6 hours 45 minutes, saw Kimbrough and Pesquet complete the first iROSA's deployment as well as the installation and deployment of the second iROSA on the 4B power channel and mast can. The next pair of iROSA assemblies are due to be installed with one of them on the P4 Truss. Astronauts Akihiko Hoshide and Mark Vande Hei of Expedition 65 were slated to carry out the preceding bracket installation on 24 August 2021. It was postponed to September after Vande Hei encountered "minor medical issues". He was replaced by Thomas Pesquet. The spacewalk began on 12 September 2021 and lasted 6 hours and 45 minutes. The next pair of arrays were launched aboard SpaceX CRS-26 on 26 November 2022. On 3 December 2022, Expedition 68 crew members Josh Cassada and Frank Rubio began a spacewalk to install the arrays at their final locations, at the 3A power channel and mast can on the S4 segment, and the 4A power channel and mast can on the P4 segment. They completed the installation on 22 December. The Power and Propulsion Element of the Lunar Gateway and Double Asteroid Redirection Test (DART) mission will use ROSA technology to power its solar electric propulsion. The ROSA on DART will enable the