However, on September 16, 2025, the resupply spacecraft’s main engine “stopped earlier than planned during two burns designed to raise its orbit for rendezvous with the space station”. In response to the setback NASA said that flight controllers are evaluating an “alternate burn plan” for Cygnus XL. The original plan involves NASA astronaut Jonny Kim capturing Cygnus XL using the station’s Canadarm2 robotic arm with backup support from Zena Cardman. After capture, the spacecraft will be installed on the Unity module’s Earth-facing port and will remain at the space station until March 2026. Astronauts Butch Wilmore and Suni Williams were on a week-long mission but remained at the space station for over three months.