New Horizons awakens after longest hibernation, resumes science mission 9.5 billion km from Earth
NASA announced on July 7, 2026, that its New Horizons spacecraft has resumed active operations after completing its longest hibernation period to date. The spacecraft emerged from a 321-day hibernation in good health, allowing mission controllers to begin retrieving spacecraft telemetry and science data gathered while it continued its journey through the Kuiper Belt, approximately 9.5 billion km (5.9 billion miles) from Earth.

