Editing Cosmos: A Personal Voyage (section)

==Special edition==
[[File:Cosmos a special edition3.jpg|thumb|right|250px|Title card of the special edition of ''Cosmos'']]
The 1986 special edition of ''Cosmos'' features new [[computer animated]] sequences and filmed segments with Sagan, as well as new narration. It includes content from Sagan's book [[Comet (book)|Comet]] and discussion of his theory of [[nuclear winter]]; this material was not used in subsequent television or home video releases. The special edition premiered as one marathon program on the [[TBS (TV network)|TBS]] network, and was later broadcast in Japan, Germany, Australia, Singapore, and Argentina. It is much shorter than the original version, at four and a half hours, divided into six 45-minute episodes:
# '''Other Worlds, Part 1'''
# '''Other Worlds, Part 2'''
# '''Children of the Stars, Part 1'''
# '''Children of the Stars, Part 2'''
# '''Message from the Sky, Part 1'''
# '''Message from the Sky, Part 2'''

The 1986 version of ''Cosmos'' contains a mix of music used in the original version, with a unique soundtrack composed by Vangelis specifically for the special edition. The score is often referred to as ''Comet'', as "Comet 16" is used during the opening and closing credits of each episode. Of the 21 cues, "Comet 16" is the only one that has been officially released, although some of the new music appears in the 2000 remastered DVD release.