NASA's Swift Observatory faces atmospheric re-entry

The Neil Gehrels Swift Observatory, a critical NASA instrument for high-energy astronomy, is expected to re-enter Earth's atmosphere and disintegrate by mid-October 2026. The 1,452-kilogram telescope has been losing altitude due to atmospheric drag, a process accelerated by increased solar activity expanding the Earth's atmosphere.

A recent attempt to extend the mission's lifespan failed after the LINK satellite, developed by Katalyst Space Technologies, lost orientation control shortly after its July launch. The mission was intended to capture the Swift observatory and move it to a more stable orbit.

NASA engineers estimate that scientific operations will become unfeasible once the observatory drops below an altitude of 300 kilometers. While some components may survive re-entry, space tracking firm LeoLabs indicates the probability of debris causing significant damage or injury on the ground is very low, with debris most likely falling into oceans or unpopulated areas.