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A glitch in one of the Galileo spacecraft鈥檚 instruments meant that the probe
gathered virtually no data during its flyby of the Jovian moon Europa last week.
NASA engineers believe debris shorted a circuit, causing one of the craft鈥檚
control systems to reset repeatedly and switch the probe into a 鈥渟afe鈥� standby
mode. Commands transmitted from Earth on 22 July returned the spacecraft to
normal operation, but it may take up to a week for transmissions of scientific
data to resume.