The spacecraft Galileo is functioning again after NASA controllers restored a computer subsystem that turned itself off while passing Jupiter's moon, Europa.

Project engineers on Wednesday night successfully restarted the command and data subsystem - a network of three computers and other hardware - and were trying to restore the system's ability to process scientific data.NASA said it could take up to a week for the spacecraft to resume sending new science data back to Earth.

The Galileo Europa Mission is scheduled to make three more near-passes of Europa, the next one on Sept. 26.