The mission to deliver a fresh crew to the International Space Station has encountered new unexpected difficulties. Living up to its unlucky 13th number, the Crew-13 mission has faced multiple setbacks: earlier, an oxidizer leak was detected in SpaceX's Dragon spacecraft delaying the flight, and now the transporter for the robotic manipulator Canadarm2 has jammed on the station itself.
Transporter issues and docking threats
NASA rushed to reassure the public, stating that the manipulator itself is in working order and is currently being used to inspect the departing Crew-12 spacecraft. However, the jammed transporter—which moves the robotic arm along the station's long truss—cannot be moved to a safe position. The current placement of the manipulator could potentially interfere with GPS systems and pose a serious threat to the docking sequence of the incoming Dragon Crew-13 spacecraft.
History and key role of the Canadarm2 manipulator
Built by the Canadian Space Agency and developed by MDA Space, the 17.6-meter robotic arm weighing about two tons was delivered to orbit back in 2001. Featuring identical grappling mechanisms at both ends, Canadarm2 has spent decades assembling the station, performing external maintenance, and berthing cargo vehicles like Cygnus and Japanese HTV vessels. Originally designed for a 15-year lifespan, it has now been operating for 25 years, nearing its absolute limits.
Station operational timeline under scrutiny
The transporter malfunction occurred last Sunday, and specialists have yet to determine whether the issue stems from software or hardware components. Time is running out, as without a functional robotic arm, cargo support operations and the overall longevity of the ISS are brought into question, reigniting debates over the station's future.
