The Swift Observatory was never supposed to last this long. Launched in November 2004, the space telescope was designed for a two-year mission mapping gamma-ray bursts, the most energetic explosions in the universe. More than two decades later it is still operating, but it is now in trouble.
Increased solar activity in 2025 expanded Earth's upper atmosphere, and the extra drag has pulled Swift's orbit down to roughly 360 kilometres. At this altitude, atmospheric drag will cause re-entry within a few years without intervention. NASA does not have a spacecraft of its own available to help.
So a startup stepped in. Katalyst Space Technologies, based in Seattle, has spent the past two years building a satellite called Link whose entire purpose is to extend the life of ageing spacecraft. On Wednesday, Link launched aboard a Pegasus XL rocket, a small air-launched vehicle carried to altitude by an L-1011 aircraft operating over the Pacific near Kwajalein Atoll. Weather delays pushed the launch back by 24 hours, but Link reached orbit successfully.
The spacecraft is designed to dock with Swift using a three-arm capture mechanism that can grip satellites not originally built to receive servicing. Once attached, Link will use its own thrusters to raise Swift's orbit by approximately 150 kilometres, buying the telescope several more years of operating life.
The commercial precedent matters as much as the mission itself. Government space agencies have accumulated dozens of ageing, functional satellites that face re-entry or degraded performance simply because no rescue mission existed. If Link succeeds, Katalyst's model, a commercial servicing vehicle funded partly through NASA contracts and partly through private investment, becomes a template for keeping that infrastructure alive.
The first test of that model is under way. Mission controllers expect to confirm orbital insertion and initial systems checks within the next 48 hours.
