SPACE PIRATE CAPTAIN HERLOCK: OUTSIDE LEGEND - The Endless Odyssey is a oVA anime that premiered in fall 2002, produced by MADHOUSE.

About the production: there are 13 episodes of about 25 minutes and its current status is "finished".

Its main genres are action and sci-fi, with themes such as Anti-Hero, Male Protagonist, Primarily Adult Cast and Seinen.

On AniList, SPACE PIRATE CAPTAIN HERLOCK: OUTSIDE LEGEND - The Endless Odyssey has an average score of 70%, a good score, and appears on 2,691 users' lists.

On an archaelogical mission to the end of the known universe, Professor Daiba unwitting unleashes an ancient horror from its confines. Five years later the malevolent alien force sets in motion a plan which reunites the various crewmembers of the Arcadia to sail the stars once more as well as bring Tadashi Daiba to meet Harlock for the first time (again). (Source: Anime News Network)

Official synopsis from AniList.