Swift Observatory Reenters Earth, Ending 22-Year Gamma Ray Mission
The 1.5-ton spacecraft fell near Indonesia after solar activity degraded its orbit, following a failed rescue attempt by Katalyst Space.
By Oliver Bennett ·
The Swift Observatory, a 1.5-ton spacecraft, plunged to Earth on Wednesday, concluding a 22-year mission to study cosmic explosions. The U.S. Space Force confirmed the reentry occurred near Indonesia after tracking the satellite’s sinking orbit. This orbital decline was driven by intense solar activity over the past few years.
NASA’s mission to boost Swift’s orbit ended in failure. The agency had hired Katalyst Space to design a robotic craft to raise the satellite’s altitude. That three-armed vehicle launched in July but encountered technical problems. It crashed in September, leaving Swift with insufficient fuel to remain in orbit.
Swift launched in 2004 with an initial two-year plan to observe gamma-ray bursts and exploding stars. The observatory operated for 11 times longer than anticipated. During this period, it detected thousands of such events and acted as an early warning system for other telescopes to conduct deeper analysis.
It remains unclear how much of the spacecraft burned up during atmospheric reentry. NASA expects some dense components to survive the descent. The agency did not provide a specific estimate of debris reaching the ground.
NASA is now evaluating private sector options for the Hubble Space Telescope, which faces a similar orbital threat. Launched in 1990, Hubble is projected to reenter the atmosphere by the mid-2030s. The space agency is soliciting input from companies on how to boost Hubble’s orbit, upgrade its systems, or guide a controlled reentry.
Any mission to save Hubble must be completed by 2032. Nicky Fox, NASA’s science mission chief, stated that the agency has more time to explore these options than it did with Swift. NASA Administrator Jared Isaacman emphasized that Hubble still has important science to perform.
Isaacman said in a statement that the agency should consider every reasonable opportunity to keep the telescope operational for as long as possible. The Swift mission’s conclusion marks the end of a dedicated era for gamma-ray burst monitoring from a dedicated, dedicated platform.
