Comets are strange and exotic objects, the remnants from dead stars. Patrick Moore discusses NASA's EPOXI mission, which hopes to rendezvous with comet Hartley 2. Show more
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Comets are strange and exotic objects, the remnants from dead stars. Patrick Moore discusses NASA's EPOXI mission, which hopes to rendezvous with comet Hartley 2. Show more
BBC Two is a lively channel of depth and substance, carrying a range of knowledge-building programming complemented by great drama, comedy and arts.
