For holders of a studentcard, FED+, FFAAB, Vakantie Participatie, Visit Brussels, VVS cards; or Atomium admission tickets, Mini-Europe or MIRA combined tickets: reduced-rate admission tickets can only be purchased on the spot on presentation of the supporting document.
For holders of a Belspo Card, Brussels Card, Educpass, European Disability Card, Gidsen/Press, Lerarenkaart, Museum Pass, PROF, Riebedebie, 365.be; or free Planetarium tickets (tombola): free admission tickets can only be obtained on site on presentation of the supporting document.
In all cases, it is always possible to buy your tickets on the spot: the capacity of the hall allows it.