at a planetarium. The plural of planetarium is either planetariums or planetaria. WPD (Worldwide Planetariums Database) This short article about science...

and moons. It is usually a heliocentric model. The Greeks had working planetaria. The first orrery that was a planetarium of the modern era was produced...

ISBN 978-1564148681.[permanent dead link] Generazione Pokémon: i bambini e l'invasione planetaria dei nuovi giocattoli di ruolo. Castelvecchi. 2000. p. 235. ISBN 9788882102494...