Re: NUFOIA: Galileo Flies by Europa
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Datum: dinsdag 4 januari 2000 9:52
Onderwerp: NUFOIA: Galileo Flies by Europa
|Galileo Flies by Europa
|.c The Associated Press
|PASADENA, Calif. (AP) - NASA's aging Galileo spacecraft swooped past
|Jupiter's frozen moon Europa on Monday but apparently did not experience
|computer problems from the planet's intense radiation.
|The probe, which has been in orbit around Jupiter since December 1995, flew
|within 220 miles of the moon's surface, said project manager Jim Erickson
|NASA's Jet Propulsion Laboratory.
|``Europa is really just on the edge of the area we consider hazardous from
|the radiation point of view,'' he said. ``We really thought this one would
|pretty well, and it has so far.''
|The spacecraft's computer and instruments appeared to be operating
|Data collected during the pass was stored aboard the probe's computer to be
|relayed back to Earth over the next several weeks.
|Galileo measured Europa's magnetic fields in an effort to detect
|from a suspected liquid ocean beneath the moon's icy crust. Some scientists
|believe life could survive in a liquid ocean beneath the frozen surface.
|During a flyby of the moon Io in November, Galileo's computer entered a
|safe-mode just before its closest encounter. A similar problem occurred
|during an October flyby of Io.
|Engineers now believe they know what caused the problem - a
|``We've got some programs on the ground ready to go that would help us
|the problem faster than we did the previous time,'' Erickson said.
|Meanwhile, the space agency has agreed in principle to continue Galileo's
|operations past Jan. 31, when its current mission was to end. Funding and
|other details have not yet been worked out, he said.
|Another Io flyby is planned for Feb. 22, with encounters with Ganymede on
|30 and Dec. 28. Joint observations with the Cassini spacecraft could take
|place in December, when the Saturn-bound probe swoops past the giant
|Copyright 2000 The Associated Press. The information contained in the AP
|report may not be published, broadcast, rewritten or otherwise distributed
|without the prior written authority of The Associated Press. All active
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