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Ghostly Travellers
Comets are strange and exotic objects, the remnants from dead stars and the birth pangs of our solar system. Only a handful of these ghostly, celestial objects have been seen at close quarters. Sir Patrick Moore discusses NASA's EPOXI mission, which hopes to rendezvous with comet Hartley 2.
Aired: Nov 08, 2010 Genre: Documentary NewsDuration: 30m Rating: 0 Country: United Kingdom Production:
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