NASA is launching a robotic mission to rescue a falling telescope
NASA's Neil Gehrels Swift Observatory is falling toward Earth ahead of schedule, and the agency is racing to stop it. A robotic spacecraft called LINK is set to launch on June 27 and dock with Swift to push it back into a stable orbit. The mission costs $30 million — a fraction of what it would take to build a replacement.
The problem
Swift launched in November 2004 for a planned two-year mission to study gamma-ray bursts. It's still working 21 years later, now serving as a broad-spectrum space observatory. NASA calls it the "air traffic controller" of the cosmos: Swift spots unusual events and relays coordinates to other telescopes for follow-up. Among its discoveries is an X-ray source that turned out to be a supernova roughly 13 billion years old.
The trouble started with the sun. The 2024 solar maximum intensified atmospheric drag in low Earth orbit, pulling Swift down faster than models predicted. Its orbit has decayed from around 600 km to roughly 370 km. Without intervention, reentry was projected for late 2026. NASA suspended Swift's science operations in February 2026 to reduce drag, and shut down its Burst Alert Telescope in April — effectively silencing a $500 million asset to buy time, as Science Magazine reported.
The rescue
NASA awarded Arizona-based Katalyst Space Technologies a $30 million contract in September 2025. The company designed, built, tested, and integrated the LINK spacecraft in just eight months — an unusually compressed schedule for a mission of this complexity. LINK carries three robotic arms and xenon Hall thrusters, and is designed to capture Swift without any pre-installed docking hardware on the telescope itself. That makes it the first-ever robotic servicing of an unprepared satellite, per the NASA Swift Boost Mission page.
LINK is bolted to a Northrop Grumman Pegasus XL rocket, which is itself carried aloft by a modified L-1011 aircraft called Stargazer. On June 27, Stargazer will drop Pegasus XL at around 12 km altitude over Kwajalein Atoll in the Pacific; the rocket will fire and put LINK in orbit within about ten minutes.
What happens next
If LINK successfully boosts Swift's orbit, science operations could resume after years of silence. The mission also sets a precedent: the US now has a demonstrated, commercial-grade method for extending the life of satellites that were never designed to be serviced. That matters as solar activity continues to threaten aging assets in low Earth orbit.
