Ghostly Travellers

November 8, 2010
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The Sky at Night - S2010 - E11

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.

The Sky at Night: Season 2010 - 12 Episode s