NASA Initiates Bold Mission To Save Swift Observatory From Uncontrolled Reentry

An Earth-orbiting NASA telescope faces a 90% chance of uncontrolled reentry by the end of 2026. To prevent this, NASA has enlisted Katalyst Space Technologies from Arizona for a rescue mission. The company aims to extend the observatory's life by launching a spacecraft to adjust its orbit.

The Neil Gehrels Swift Observatory, launched in 2004, was designed to study gamma-ray bursts. Over time, it has gradually descended in its low-Earth orbit. Recent solar activity has increased atmospheric drag on Swift, hastening its descent. This acceleration poses a risk of uncontrolled reentry by mid-2026.

Katalyst Space Technologies plans to launch the "LINK" spacecraft to rendezvous with Swift and boost it into a more stable orbit. They have until June 2026 to achieve this goal. The mission will use an air-launched rocket dropped from an aircraft, marking a unique approach.

Northrop Grumman's Pegasus rocket has been chosen for this mission. It is released from a carrier plane at 40,000 feet before igniting its engines and heading to space. This method suits the mission's specific requirements and budget constraints.

The Swift Observatory orbits at a 20.6-degree inclination to avoid the South Atlantic Anomaly, which exposes satellites to radiation. Launching from traditional sites like Cape Canaveral would require excessive propellant due to this orbital path.

Katalyst's vice president of technology, Kieran Wilson, explained that Pegasus is uniquely capable of meeting the mission's needs within the timeline and budget. This will be Pegasus's first flight since 2021 as cheaper ground-launched rockets have become more common.

Despite the observatory burning up upon reentry without posing any threat, NASA and Katalyst aim to prolong its operational life. The mission represents an innovative effort to preserve valuable scientific equipment in space.

With inputs from WAM