The series is based on comics created by Italian physicist Andrea Romoli.

[1] The series was a huge success in Japan and even won the Osamu Tezuka's Atom Award at the Tokyo Film Festival.

The series depicts the adventures of four astronauts who travel through space and visit many planets.

The world greatly resembles the world of the late 20th century, but there is a considerable amount of futuristic technology: interstellar travel is common place (the spatial agency which employs the characters is a modest private agency not related to the government), laser weapons exist, etc.

The characters do not require artificial respiratory systems and are able to breathe on each of the planets which they visit.

Many episodes talked about subjects such as: friendship, war in general, the danger of nuclear warfare or nuclear explosion (Japan was the victim of the atomic bombings of Hiroshima and Nagasaki), protection of the environment and of endangered species, slavery (Sebeep was the personal singer of a taxidermist in one episode), alcoholism (there was an adventure in which Toppy had become an alcoholic and abandoned his family), pirates, virtual reality (in one adventure there was a complete world which was an illusion entirely controlled by a computer), etc.

The "Sagittarius", which is the spatial ship in which the heroes travel through space, comes from that agency.

Sebeep was found by Toppy, Rana and Giraffe on a planet in one of their adventures and he became a member of the team.

Stardust Boys (スターダスト ボーイズ) Opening theme sung by: Hironobu Kageyama & Koorogi '73 Dream Light Years (夢光年) Ending theme sung by: Hironobu Kageyama & Koorogi '73 Soul Brother (ソウルブラザー) Image Song sung by: Hironobu Kageyama & Koorogi '73