NASA's Swift telescope has burned up, months after a robot sent to save it failed

NASA's Swift telescope, launched in 2004, was finally shut down on Oct. 20, 2026, after it had fallen too low in orbit, causing its instruments to fail. It reentered Earth's atmosphere on Nov. 4, 2026, in the North Sumatra region, where it largely burned up. The mission, which lasted 20 years, was meant to observe cosmic explosions, but the telescope's reentry was abrupt and unexpected. A robotic spacecraft, LINK, designed to rescue Swift, failed to capture and boost it due to a loss of reaction wheels and propulsion system issues. The spacecraft spun uncontrollably, and despite efforts to stabilize it, it lacked enough fuel to complete the task. The failure highlights a growing challenge in the space industry for rescuing satellites, as spacecraft used for such missions often face unexpected technical issues.

• "NASA ended the mission three days after it fell too low, causing its instruments to fail."
• "LINK, a commercial robotic spacecraft, failed to capture and boost Swift due to loss of reaction wheels and propulsion system issues."
• "The failure shows that rescuing satellites is complex, as spacecraft used for such missions often face unexpected technical issues."

The failure of LINK underscores the difficulty of rescuing satellites, as the spacecraft must be able to remain stable, recover from its own faults, and have enough propellant to complete the task. The mission also highlights the risks of relying on a single spacecraft for such a critical operation, as the rescuer may not have the necessary resources to handle unexpected problems. While Swift was the most pressing case for a boost mission, it is not the only one. Future missions are pursuing two complementary approaches for rescuing satellites, such as Astroscale's ELSA-M and the European Space Agency's ClearSpace-1. LINK's mission showed that a rescue takes more than just a robotic arm and enough thrust to reach a target, but also requires a stable, fault-tolerant spacecraft with sufficient propellant.

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