A Nasa-supported mission is currently underway to retrieve the Swift observatory, a vital telescope at risk of deorbiting. Launched in 2004, the observatory monitors high-energy cosmic explosions but has lost altitude due to increased solar activity expanding the Earth’s atmosphere, which creates drag on the craft. Its orbit has dropped from 373 miles to approximately 220 miles.
Katalyst Space Technologies developed the LINK spacecraft, a robotic vessel equipped with three arms, to intercept and stabilize the telescope. The mission involves a delicate approach where LINK must maneuver alongside the moving observatory, capture it, and fire its thrusters to push it back into a stable, higher orbit. Dr. Simeon Barber of the Open University noted that this operation is unprecedented and carries significant risk, as the original telescope was not designed for such an interaction.
The rescue attempt represents a rapid engineering achievement, as the Katalyst team completed the design and build process in just eight months. If successful, this mission could set a precedent for future efforts to service other major assets in space, such as the Hubble Space Telescope.