NASA calls off mission to rescue Swift gamma-ray observatory

Key Points:

• NASA and Katalyst Space Technologies have abandoned the robotic mission to rescue the aging Swift gamma-ray telescope after the Link satellite experienced attitude control failures, preventing it from completing the orbital boost needed to save Swift from reentry.
• The Link spacecraft, launched in July with robotic arms and electric thrusters to capture and raise Swift’s orbit, lost control due to failures in two reaction wheels and issues with cold gas thrusters, leaving only low-impulse plasma thrusters insufficient for regaining orientation.
• Despite the mission’s premature end, NASA and Katalyst emphasize the valuable technical and operational lessons learned, which will inform future satellite servicing and proximity operations, advancing in-space servicing capabilities.
• Swift, a nearly 22-year-old mission critical for detecting gamma-ray bursts, lacks onboard thrusters to maintain orbit, making the Link rescue attempt the only viable option to extend its life; its expected atmospheric reentry later this year marks the end of the observatory’s service.
• NASA acknowledged the high-risk nature and aggressive timeline of the mission, praising Katalyst for rapid development and innovative problem-solving, underscoring the mission’s importance in pushing forward America’s space industry despite the setback.