A spacecraft named Link, marketed as America’s first commercial space robot, completed its return to Earth on Friday, concluding an unsuccessful rescue mission for the Neil Gehrels Swift Observatory. The spacecraft had launched on 3 July from Kwajalein Atoll in the South Pacific with the goal of boosting the orbit of Swift, a satellite that has conducted observations of gamma-ray bursts and other astronomical phenomena for the past 22 years.
Link managed to approach the observatory at a distance of 7 to 9 miles and captured imagery of its condition, but was ultimately unable to successfully capture and relocate it to a higher altitude. The mission was operated by Katalyst Space Technologies, an Arizona-based company that secured a $30m contract from NASA in September 2024. The company developed and executed the ambitious rescue plan within 22 months, though technical difficulties encountered during the mission proved insurmountable.
The spacecraft experienced motion control and communications problems during its 85-day mission that prevented successful execution of the capture and boost procedure. After fuel reserves became depleted and mission managers determined that adequate resources to continue the effort no longer existed, the decision was made to end the rescue attempt. Without the planned orbital altitude increase, Swift will undergo its own descent through Earth’s atmosphere in the coming weeks.
NASA officials stated that despite the unsuccessful outcome, the mission represented a worthwhile effort to advance satellite servicing capabilities and test operational approaches for extending spacecraft lifespans in low Earth orbit. The Swift Observatory, which launched in November 2004 through collaboration between NASA and Penn State University, saw its operational life shortened by intense solar activity—the same solar phenomena it was designed to study. The agency had suspended Swift’s scientific observations earlier this year and adjusted its orientation to minimize atmospheric drag while preparations for the rescue mission were underway.
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