In the fall of 2024, NASA noticed a problem it couldn't ignore: one of its most productive space telescopes was falling out of the sky. The Neil Gehrels Swift Observatory, which has spent more than two decades peering into the universe's most violent explosions, was being pulled down by Earth's atmosphere faster than expected — a consequence of increased solar activity amplifying the drag on low-orbiting spacecraft. Without intervention, Swift would re-enter the atmosphere later this year. So NASA did something unprecedented: it hired a private company to go catch it.
On June 30, 2026, a Northrop Grumman Pegasus XL rocket will lift off from Kwajalein Atoll in the Republic of the Marshall Islands, carrying a 880-pound spacecraft called LINK. Built by Katalyst Space, LINK is roughly 5 feet tall with nearly 20 feet of solar panels unfurled like wings — about a third the size of Swift itself. Once it reaches orbit, LINK will spend months slowly closing in on Swift, which has been circling Earth since November 2004. Then, using three ion thrusters and a trio of robotic arms, the little satellite will grapple the observatory and gradually raise its altitude back to safe territory.
The timeline was almost impossibly tight. NASA contracted Katalyst in September 2024, giving the company less than one year to design, build, test, and launch a spacecraft capable of rendezvousing with and boosting a satellite it had never touched. The team completed environmental testing at NASA Goddard this spring and additional preflight checks at Katalyst's facility in Broomfield, Colorado. Throughout it all, Swift kept doing science — though its operators at Penn State's Eberly College of Science had to get creative. To keep the telescope from dropping below its critical 185-mile altitude floor, they began steering it into the most aerodynamic orientation possible, sacrificing observation time to buy precious days.
What makes this mission significant goes beyond saving a single telescope. Swift has spent twenty years as NASA's "multitool" for studying the cosmos, rapidly pivoting to catch gamma-ray bursts and other short-lived phenomena, then alerting other facilities to follow up. Its data has reshaped humanity's understanding of black holes, neutron star collisions, and the life cycles of stars across the universe. But Ghonhee Lee, CEO of Katalyst, sees something larger at stake. "Swift wasn't designed to be serviced," he said. "By demonstrating we can quickly and cost-effectively extend its lifetime, we're creating a blueprint for servicing spacecraft that were never designed for on-orbit maintenance. If we're going to build an enduring presence beyond Earth, we need the capability to manipulate our environment in space."
For the team watching Swift from Pennsylvania and Colorado, the launch can't come soon enough. But if LINK performs as hoped, it won't just extend one telescope's life — it could mark the beginning of a new era where satellites that were never meant to be touched can be refueled, repositioned, and repaired long after they leave Earth.