A fast orbital rescue effort moves closer to launch
A spacecraft built to save one of NASA’s aging science assets has passed a major prelaunch milestone. NASA and Katalyst Space said Katalyst’s Link spacecraft successfully completed environmental testing at NASA’s Goddard Space Flight Center, keeping the company on track for a launch that could happen as soon as June.
The mission’s goal is unusual and urgent: Link is intended to rendezvous with the Neil Gehrels Swift Observatory, grapple it, and raise its orbit before atmospheric drag pulls the satellite too low for rescue. Swift, a gamma-ray observatory in low Earth orbit, is facing a steadily decaying orbit, with reentry expected as soon as late 2026 if no intervention succeeds.
Testing suggests the spacecraft is ready for final preparations
The environmental campaign included vibration testing to simulate launch conditions aboard a Northrop Grumman Pegasus XL rocket. The spacecraft also underwent thermal vacuum testing, including deployment of a robotic arm and firings of its electric thrusters. Those are not generic box-checking exercises in this case. The mission depends on a combination of precise spacecraft operations, mechanical interaction with an existing satellite, and enough propulsion capability to execute the reboost once contact is made.
With testing complete, Link has returned to a Katalyst facility in Colorado for final prelaunch work. It is expected to ship to NASA’s Wallops Flight Facility in early June for integration with the Pegasus rocket, with launch projected later in the month.







