The Sky At Night - Ghostly Travellers

Seizoen: 2010 - Aflevering: 11 / 702 - Eerst uitgezonden: 08 november 2010 - Episode ID: 523794

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.