NASA’s Swift Space Telescope Set for Uncontrolled Reentry Into Earth’s Atmosphere

TEHRAN, Nov 2 (OPA) — NASA confirmed that the Swift space telescope has entered a terminal descent after its orbit decayed to an altitude of 275 kilometers. The agency initiated a safe-mode shutdown of the observatory’s instruments after determining the craft could no longer overcome atmospheric drag. The mission, managed by teams at Pennsylvania State University, officially concluded operations on October 20.

Launched in November 2004, the observatory spent two decades monitoring high-energy cosmic events. It utilized three specialized instruments—the Burst Alert Telescope (BAT), X-Ray Telescope (XRT), and Ultraviolet/Optical Telescope (UVOT)—to track gamma-ray bursts. These phenomena are recognized as some of the most powerful explosions in the universe, and Swift’s data provided critical insights into their origins.

Engineers attempted a robotic rescue mission to extend the telescope's operational life, but the effort failed to stabilize its trajectory. With the craft now lacking the propulsion capability to maintain its position, it is subject to the increasing pull of Earth’s upper atmosphere. The 1,500-kilogram mass of the satellite makes it a significant object, though the agency has not yet provided specific projections regarding debris survival.

Project officials currently cannot determine the precise time or location of the telescope’s reentry. As the satellite continues its uncontrolled descent, tracking data remains limited by the unpredictable nature of atmospheric density fluctuations. NASA continues to monitor the craft’s path, though no further maneuvers are possible to alter its final trajectory.