A Russian Progress cargo spacecraft en route to the International Space Station (ISS) is experiencing a critical technical issue: its primary antenna failed to deploy properly after launch, forcing mission control to prepare for a manual docking procedure. The uncrewed vessel, Progress 94 (Progress MS-33), launched from Kazakhstan on Sunday carrying approximately 2,500 kilograms of essential supplies—food, water, fuel, and scientific equipment—intended for the orbiting laboratory.
The malfunction means that the ship will not be able to automatically connect with the ISS, as originally planned for Tuesday. Instead, Russian cosmonaut Sergey Kud-Sverchkov, currently aboard the station as part of Expedition 73/74, will likely use a backup system to remotely guide the spacecraft to dock with the Russian Poisk module. This manual override is a contingency procedure, but highlights the risk of relying on automated systems in space.
Why this matters: The ISS depends on regular resupply missions, and while NASA and other international partners contribute, Russia plays a key role in logistics. Antenna failures are rare but can indicate broader reliability concerns with aging hardware or launch stresses. The need for manual intervention underscores the ongoing human element in space operations, even with increasing automation.
The issue came to light roughly 40 minutes after liftoff when NASA reported the antenna deployment failure. Though the rest of the spacecraft is functioning as expected, the antenna is vital for the final docking sequence. Kud-Sverchkov has extensive experience in space, including six months on the ISS between 2020-2021. His ability to take over manually ensures the mission can proceed, but adds an extra layer of complexity and risk.
This incident is not isolated. The Progress 94 launch was already delayed from late 2025 due to damage at the Baikonur Cosmodrome launchpad. Earlier this year, Expedition 73/74 crew had a launchpad issue, and last year, an astronaut was sent home early due to a medical emergency.
Recent ISS Instability: This follows a string of incidents at the ISS in the past year. NASA astronauts were stranded due to a faulty capsule, and China’s Tiangong station also experienced issues with debris hitting its return vehicle. These events raise questions about long-term maintenance and aging infrastructure in both Russian and international space programs.
NASA will livestream the docking attempt on Tuesday, providing real-time visibility into the operation. Whether the antenna can be partially resolved or Kud-Sverchkov will be forced to take manual control, the mission will continue.
Despite the setback, officials say all other systems are nominal and docking will proceed as planned, either autonomously or with human intervention. The incident serves as a reminder that space travel remains inherently risky, and even well-established procedures are subject to unexpected failures.
