NASA is preparing for an ambitious and unprecedented mission to rescue its Swift space observatory, which is currently falling out of orbit and faces a fiery reentry by the end of the year. The agency plans to use a newly built spacecraft to rendezvous with and boost the observatory into a higher, safer orbit, potentially extending its scientific mission for several more years.
A Daring Rescue Mission
The Swift Boost mission, as it is called, involves an untested spacecraft named Link, developed by Arizona-based Katalyst Space Technologies. Link, described as a space tug, is designed to dock with the Swift observatory, which was never built with docking capabilities. If successful, Link will propel Swift into an orbit that could add five or more years to its operational life.
The mission’s launch is scheduled for June 27, with Link set to lift off aboard the last-ever Pegasus XL rocket, an air-launched booster manufactured by Northrop Grumman. This undertaking is considered highly challenging, with NASA’s Astrophysics Division director, Shawn Domagal-Goldman, admitting, “No one thought it was going to be possible.” The speed at which the mission has come together is also remarkable; NASA selected Katalyst in September 2025, giving the company just nine months to develop and prepare the Link spacecraft.
Swift’s Scientific Legacy and Current Predicament
Launched in 2004, the Neil Gehrels Swift Observatory, commonly known as Swift, was a $250 million mission intended to hunt for gamma-ray bursts—powerful cosmic explosions. Operating from an orbit approximately 375 miles (600 kilometers) above Earth, Swift has been highly successful, detecting over 2,000 gamma-ray bursts and contributing to the understanding of how heavy elements like gold and platinum are forged in the universe. The observatory was initially expected to last two years but has far exceeded its lifespan.
However, Swift lacks its own propulsion system. Over time, increased solar activity has caused Earth’s atmosphere to expand, creating more drag on the observatory than anticipated and causing its orbit to decay. By February, the mission team realized Swift was falling faster than expected, prompting the decision to attempt a rescue rather than let it crash.
The Link Spacecraft and Operational Challenges
The 937-pound (425-kilogram) Link spacecraft will first undergo a commissioning period of several weeks after its launch on June 27 to ensure its systems, including its three main Hall thrusters and robotic arms, are functioning correctly. Following these checks, Link will maneuver to approach Swift. The process of docking and then raising Swift’s orbit is expected to take several months.
Katalyst’s principal investigator for Link, Kieran Wilson, acknowledged the inherent risks, noting that many spacecraft with longer development cycles and more funding have failed. Potential issues include malfunctions in Link’s solar arrays, or the possibility that Swift’s aging insulation blankets could become brittle and break when Link’s robotic arms attempt to grasp it. The ongoing solar activity that contributed to Swift’s orbital decay also presents a risk, as a major solar storm could accelerate Swift’s descent before Link can reach it.
Swift is projected to fall below an altitude of 186 miles (300 km) by October, at which point it may be too low for Link to intercept. Despite these challenges, NASA remains hopeful that there will be sufficient time for the rescue. If the mission is successful, Swift could resume scientific operations by the fall, and Link will be intentionally deorbited upon completion of its task.
A New Era of Spacecraft Servicing
Katalyst Space Technologies sees this mission as a step towards a new model in space operations, moving away from disposable satellites. The company recently secured $12 million in funding to develop a more advanced spacecraft called Nexus, aimed at enabling multi-orbit, multi-mission satellite servicing. A test flight for Nexus is planned for 2027.
Norman Pearlstine is the Chief Editor of News Raise and focuses on Business news. His responsibility is to oversee the editorial content including business, commodities, personal investments and the stock market.
