The spacecraft went into safe mode only 30 minutes after going past Amalthea. NASA said it was ready for problems, because Galileo was on its last legs, and the radiation near Amalthea was strong.

"We found the water in the equator to be greater than what the Galileo probe measured," said Cheng Li, a Juno scientist at the University of California, Berkeley. "Because the equatorial region is ...

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