Knights of Sidonia is an anime series based on the manga of the same name by Tsutomu Nihei, and produced by Polygon Pictures.
Directed by Kobun Shizuno, assisted by Hiroyuki Seshita, with scripts by Sadayuki Murai and character design by Yuki Moriyama.
[1] The series tells the story of Nagate Tanikaze, an "under-dweller" destined to become a Garde pilot, whose mission is to defend the massive spaceship Sidonia from a hostile alien species called Gauna.
The opening theme for the second season is Kishi Kōshinkyoku (騎士行進曲, Knight March) by angela while the ending theme is "Requiem" by CustomiZ.
[2] On June 16, 2017, a third season for the series was confirmed to be in development by director Hiroyuki Seshita.