[NS]Space probe targets third comet after second vanishes# Aviation - 航空航天
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http://space.newscientist.com/article/dn13087-space-probe-targets-third-comet-after-second-vanishes.html
* 10:23 17 December 2007
* NewScientist.com news service
* David Shiga
A comet targeted for a flyby with NASA's Deep Impact spacecraft cannot be
found, forcing mission planners to send the probe to a different comet. The
comet may have evaded telescopes simply because its predicted orbit was
incorrect, or, more intriguingly, it might have disintegrated completely.
The Deep Impact
* 10:23 17 December 2007
* NewScientist.com news service
* David Shiga
A comet targeted for a flyby with NASA's Deep Impact spacecraft cannot be
found, forcing mission planners to send the probe to a different comet. The
comet may have evaded telescopes simply because its predicted orbit was
incorrect, or, more intriguingly, it might have disintegrated completely.
The Deep Impact