US EditionHow NASA Saved a Camera From 370 Million Miles Away
NEAR JUPITER, JUL 21 – NASA used an experimental annealing process to restore JunoCam, enabling detailed images of Io after severe radiation damage nearly halted the mission’s imaging capabilities.
- On Dec. 30, 2023, NASA’s Juno team executed a repair of the JunoCam imager using annealing, to restore image quality near Jupiter.
- Deep in Jupiter’s radiation fields, the camera first showed radiation damage during its 47th orbit, as the team reported in July 2025.
- Using JunoCam’s onboard heater, the team raised the temperature to 77°F for annealing, resulting in crisp images for several orbits.
- During the close approach, image clarity improved dramatically and by Dec. 30, 2023, the images matched launch-day clarity.
- Engineers noted potential applications, as the annealing technique may apply to future NASA missions and Earth satellites, improving radiation resilience.
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How NASA saved a camera from 370 million miles away
The mission team of NASA's Jupiter-orbiting Juno spacecraft executed a deep-space move in December 2023 to repair its JunoCam imager to capture photos of the Jovian moon Io. Results from the long-distance save were presented during a technical session on July 16 at the Institute of Electrical and Electronics Engineers Nuclear & Space Radiation Effects Conference in Nashville.
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The Nasa used an unprecedented technique to remotely repair a camera mounted on the Juno probe in orbit around Jupiter. Encompassed by radiation, it was still able to be successfully manipulated. In a few weeks, on August 5, 2025, Juno will celebrate the 14th anniversary of its launch. An age
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