A planet birthday party, a NASA party and an astronaut party are three different afternoons, even though every shop files them under “space”. The planet party is about the solar system and suits collectors of facts. The NASA party is about missions and suits children who want to be in charge. The astronaut party is about the person in the suit and suits the youngest crew. Pick the one that matches your child, and the rest of the planning gets easier.
We run space parties for six to eleven year olds and offer space missions of our own, so this is the conversation we have with parents most weeks. Here is how to choose, what each theme looks like in a living room, and what to put in the party bag.
The question that decides it
Ask your child one thing: “If you could do one space thing tomorrow, would you visit a planet, fly a rocket, or be an astronaut?” The answer sorts almost every child into one of the three themes below. If they say “aliens”, you have a fourth option, and we cover that too.
The planet birthday party
Best for: children who know the order of the planets and want everyone else to know it too. Usually six and up.
The build: a solar system. Each child paints a paper-plate planet from a fact card, Saturn gets a ring cut from a second plate, Jupiter gets the biggest plate and a red spot. Hang them in order on a string across the room, Sun at the window. Every child takes their planet home.
The challenge: a planet order relay, then a “which planet am I?” quiz read by the birthday child. Three clues per planet, hands up on the third. Uranus always gets a laugh and is also the one with the best fact: you cannot stand on it, because there is nothing solid to stand on.
Food and bag: a cake with eight planets in order is the centrepiece and the photograph. Party bag: their planet, a fact card, a glow star.
The NASA (or mission) birthday party
Best for: children who like being in charge and want something to fly. Seven to nine, though a keen six year old will keep up.
A note on the name. NASA is a real agency with a real logo, so treat the theme as “a mission control party” rather than printing the logo on everything. The children will not mind. What they want is the countdown, the badges and a launch. Europe has its own agency, ESA, whose missions some of our team have worked on, and a mission party can borrow from either.
The build: rockets. Straw rockets indoors, with a target on the wall, or a bottle rocket in the garden if you have the space and an adult willing to run the launch. Give each child a mission role on a sticker: commander, pilot, engineer, scientist.
The challenge: the launch, with the birthday child running the countdown from mission control (a chair, a cardboard console, a torch for the “go” light). Score distance or accuracy. Then a debrief: what would you change? They will have opinions.
Food and bag: “rocket fuel” juice, rocket sandwiches, a countdown on the cake. Party bag: their rocket, a mission patch they designed, a certificate with their role on it.
The astronaut birthday party
Best for: the youngest crews, four and five, and any child whose answer to the question was “be an astronaut”.
The build: a helmet or a jet pack. A paper bag or a large paper plate with a visor cut out for the helmet; two empty bottles taped side by side, painted silver, with ribbon flames, for the pack. Decorating is the activity; there is no wrong answer, which is what four year olds need.
The challenge: astronaut training. A moon-walk race across cushions, an obstacle course in oven gloves (spacesuit gloves are stiff, and opening a jar in them is genuinely hard), and a graduation where each child is sworn in as an astronaut. Keep each station five minutes. Keep the crew to eight.
Food and bag: “moon rocks” (cheese cubes), star-shaped anything, a cake shaped like a helmet or a moon. Party bag: the helmet, an astronaut certificate, a glow star for the ceiling.
The fourth option: aliens
If your child wants aliens, give them aliens. The build is a creature each from craft scraps and an alien message decoder. The challenge is a coded trail around the house that ends at the cake. It sneaks in a real question along the way, whether anything could live on Mars, and the honest answer (nothing we have found yet) is more interesting to most children than a green one with antennae.
What the themes share
Whichever you choose, the afternoon has the same shape, and it is the shape that makes it work: a briefing, one build, one challenge and a graduation. We have written it up in full, with timings, the mistakes to avoid and a checklist, in our space birthday party ideas guide, and there are twelve games that fit any of the themes.
Our three themes, if you want them run for you
A Louno Space birthday party comes in four missions: Build a Rocket, Mars Rover (build a rover and code it to drive), Astronomy (build the solar system and meet the planets) and Aliens (decode messages and hunt for life). If you cannot choose, tell us what your child loves and we will help you pick. Ninety minutes at your home or venue, run by a real space engineer, ages six to eleven, £180 for up to ten children, with invitations and certificates included and party bags as a £5 add-on.
Theme questions parents ask
What age is a planet birthday party good for?
Six and up works best, because the facts are the fun. For four and five year olds, an astronaut theme with a decorated helmet and a moon-walk race lands better.
Can I mix themes?
Mix decorations freely, but keep one build and one challenge. A party that tries to be planets, rockets and astronauts in ninety minutes finishes none of them.
Is a NASA party allowed?
Calling it a NASA party at home is fine. Avoid printing the agency’s logo on things you sell or hand out, and lean on “mission control” instead; it is the part children care about anyway.
Mirko Viviano
Founder of Louno Space Education CIC. Runs space-themed STEAM clubs, workshops and assemblies in primary schools across the UK.
