The series is named after Spica, a binary star system and the brightest star in the constellation Virgo. In the manga, Yaginuma includes many references to historical events related to the development of human spaceflight as well as literary works such as Kenji Miyazawa's novel "Night on the Galactic Railroad". American publishing company Vertical announced acquisition of the manga's license for English-language translation at the New York Anime Festival in September 2009, and the translated first volume was published in May 2010. The series was described by Vertical marketing director Ed Chavez as "technically sound" and "heartfelt" during its initial assessment.</onlyinclude>