NASA's Swift Observatory Set to Reenter Earth This Week

• •NASA's Swift Observatory is set to reenter Earth's atmosphere this week.
• •Experts predict that around 100 kilograms of debris may survive the reentry.
• •The spacecraft has contributed to over 7,000 published papers in its 22-year mission.

NASA's Neil Gehrels Swift Observatory is expected to reenter Earth's atmosphere between November 1 and 3, 2026, after a failed rescue mission. The spacecraft, which has been operational for nearly 22 years, will mostly burn up upon reentry, but experts estimate that around 100 kilograms of debris could survive. The reentry zone spans parts of Africa, Australia, India, Southeast Asia, and Central and South America, with the likelihood of debris landing in the ocean being high. Swift has made significant contributions to astrophysics, observing over 2,000 gamma-ray bursts and 1,400 supernovae. The mission's end comes after intense solar activity accelerated its orbital decay, leading to its current altitude of less than 171 miles. NASA's Katalyst Space Technologies launched a rescue mission in July 2026, but it failed to reach Swift before its systems were shut down. The final observations were made on October 20, 2026.