The spacecraft Galileo, currently in orbit around Jupiter, has been suffering a series of mysterious glitches in its camera. The probe was launched in 1989, and has already been orbiting for more than three years longer than planned.
Several times, the probe has sent messages to NASA that its camera was malfunctioning, but every time the probe was either able to repair itself, or simple commands from NASA corrected the problem.
"The fact that the camera can fix itself without our intervention is puzzling but provides valuable information to analyze what is happening," said Galileo's project manager. NASA suspects that radiation from Jupiter is causing the errors.