NASA has launched a mission to rescue its aging Swift observatory, which has been losing altitude and is at risk of falling out of orbit. The effort involves a robotic spacecraft designed to give the satellite a boost.

The Swift observatory, launched in 2004, has been crucial for studying gamma-ray bursts and other cosmic phenomena. But orbital decay has threatened its operational lifespan, prompting the agency's first dedicated rescue attempt for this instrument.

Contact has been established with the rescue spacecraft, known as LINK. The robotic vehicle will rendezvous with Swift and perform a boost maneuver to raise its orbit and extend its mission.

The boost mission marks a novel approach to satellite servicing. If successful, it could provide valuable data on orbital maintenance techniques, which may prove essential as more aging satellites require similar interventions.

Some experts caution that such rescue missions are complex and risky. An earlier attempt to contact or assist the observatory had been a challenge, underscoring the difficulties of in-orbit servicing.