A small spacecraft is about to chase down one of NASA's most productive space telescopes and give it a push. The mission, called LINK, will dock with the Swift Observatory and raise its orbit, keeping the telescope alive for years longer than expected.
A rescue mission 560 kilometers above Earth
Swift has been scanning the sky for gamma ray bursts since 2004. It orbits about 560 kilometers above Earth, but like all satellites in low orbit, it slowly loses altitude due to atmospheric drag. Without help, the observatory would eventually fall back to Earth and burn up. The LINK spacecraft, built by a private company, will fly up to Swift, latch on, and fire its thrusters to lift the telescope to a higher, more stable orbit.
Why local astronomers and scientists are watching closely
The mission is being managed by NASA and a team of engineers who have never attempted this kind of orbital boost on an active science satellite before. Swift is not designed for docking. It has no handrails, no docking ports, and no way to communicate with a visiting spacecraft. LINK will use cameras and sensors to approach slowly, then grab onto Swift using a mechanical arm. If successful, the maneuver will add years of life to an observatory that has already made major discoveries about black holes, supernovae, and the most powerful explosions in the universe.
What happens next
LINK is scheduled to launch from Earth in the coming months. Once in orbit, it will spend several weeks maneuvering into position near Swift. The actual docking and boost will take place autonomously, with ground teams monitoring from NASA centers in the United States. The goal is to raise Swift's orbit enough to keep it operational through the 2030s. For the scientists who rely on Swift's data, this mission could mean the difference between losing a vital tool and gaining a decade more of observations.
