Extract from the 1999 BBC documentary 'The Planets' regarding Voyager 2 flyby of Neptune in 1989 (interestingly, according to the Hubble telescope, the Great Dark Spot no longer exists). | more...

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Tags: The Planets voyager 2 neptune

Upload by: sana on 27-05-2009.

Duration: 7m 28s

Dnatube: Sciencific and Medical video site.