Space Birthday Party Ideas: From a First Trip Around the Sun to an Astronaut Party

Space works at two very different ages. For a first birthday, "First Trip Around the Sun" is a gentle, photo-friendly theme: the baby just finished one orbit. For ages 3 to 6, an astronaut party turns the afternoon into a mission, with training, a rocket launch and a moon rock hunt. This guide covers both, with food, printables, a timeline and budget tips.

First Trip Around the Sun: a first birthday idea

Earth takes about 365 days to go around the sun, so a first birthday is literally one trip. That one sentence gives you the whole theme.

Hang one photo per month along an oval orbit around a paper sun. Start at the top and go clockwise.

Palette. Pick mustard, terracotta and cream for a warm, retro sun. Or go navy, gold and white for a night sky with a crescent moon and stars. Either one looks soft in photos and works for a girl or a boy.

The photo orbit. The best piece at this party costs almost nothing:

1. Cut a large sun from cardstock, or use a round paper lantern, and put it in the middle of the wall.

2. Run a string in a wide oval around it.

3. Clip one photo per month along the string, starting at the top and going clockwise, with a small number on each.

4. Add a little Earth on the orbit, right before month 1.

Guests walk along it and watch the baby grow. Afterward, it goes straight into a baby book.

Sayings.

• "[Name]'s First Trip Around the Sun"

• "One trip around the sun"

• "Our little star is turning one"

Keep the party baby-sized. About two hours, timed after a nap, with a small smash cake for the baby and a larger cake or cupcakes for guests. More on planning a first birthday: First Birthday Party Ideas: Themes, a Simple Plan and What to Print.

Astronaut party for ages 3 to 6

Older kids want something to do. Make every guest an astronaut in training.

Ages 3 and 4. Short activities with no losers: a moon rock hunt, bouncing like astronauts on the moon, a dance party with glow sticks. About 90 minutes.

Ages 5 and 6. Give the party a story. Kids pass "astronaut training," build a rocket, complete a mission and get a certificate. Small teams work well. Two hours is fine.

Mission Control welcome table

At the door, each child gets a name badge ("Astronaut Mia") and a mission card. That one printed piece sets the tone right away.

Astronaut training course

Set up a simple circuit in the yard or living room:

• Crawl through a "tunnel" (a cardboard box or play tunnel)

• Walk the "space beam" (a strip of tape on the floor)

• Jump from crater to crater (paper plates or hula hoops)

• Toss a "planet" (a ball) into a basket

Time each child if they like that. Let every child finish.

Straw rockets

A craft that becomes a game. You need printed rockets, scissors, tape, pencils, scrap paper and straws.

Cut, roll, tape, launch: a straw rocket takes about 10 minutes per child.

1. Cut out a printed rocket.

2. Roll a strip of paper tightly around a pencil and tape it. Fold the top over and tape it closed.

3. Slide out the pencil and tape the rocket to the tube.

4. Slide the tube onto a straw and blow.

Then mark a "launch pad" and a target planet on the wall. Prep the cutouts the night before for kids under 5.

Moon rock hunt

Wrap small rocks or plastic eggs in foil, or spray-paint rocks silver, and hide them. Each astronaut fills a bag labeled with their name. For a night party, glow-in-the-dark stars on the ceiling and glow stick bracelets do the decorating for you.

Planet order game

Print the eight planets on cards. Teams race to line them up from the sun outward: Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus, Neptune. Five-year-olds love being the ones who know.

Space food that's easy to make

• Planet pizzas: mini pizzas, each with different toppings

• Moon rocks: popcorn or puffed-cereal treats in silver cups (popcorn for ages 4 and up)

• Star sandwiches: cut with a star cookie cutter

• Rocket fruit skewers: strawberry, banana and blueberry stacked on a stick

• Galaxy cupcakes: dark blue frosting with edible star sprinkles

• Rocket fuel: juice or lemonade in bottles with printed labels

At a first birthday, keep honey, whole grapes and hard foods away from the baby's tray. Label every dish so parents can check ingredients at a glance.

What to print

First Trip Around the Sun (about 20 guests):

• Phone invitation, sent by text

• Monthly photo cards numbered 1 to 12

• Cake topper with the sun, plus 24 cupcake toppers

• 20 favor boxes or tags

• Water bottle labels and 6 to 8 food tent cards

• 1 welcome sign

Astronaut party (about 12 kids):

• 12 name badges and mission cards

• 12 printed rockets for the straw craft, plus a few spares

• 8 planet cards per team for the planet game

• Cake topper and 24 cupcake toppers

• 12 favor boxes

• 12 astronaut certificates

Use 65 to 80 lb cover cardstock (about 176 to 216 g/m²) for boxes, toppers and rockets. Plain printer paper is fine for mission cards and labels.

Favors that don't end up in the trash

• A sheet of glow-in-the-dark star stickers

• The straw rocket each child made

• A small astronaut or rocket figure

• A planet coloring page and crayons

Put them in a printed favor box with each child's name, and the box doubles as a place card.

Timeline

• 5 to 6 weeks before: pick which party you're throwing and the palette.

• 4 weeks before: send invitations. For a first birthday, start gathering the twelve monthly photos.

• 1 week before: print photos and printables, cut and assemble.

• The night before: hang the photo orbit and pre-cut rockets.

• Party day: food, balloons and the cake.

Budget tips

• One themed kit costs less than separate pieces. On our site, mixing 4 or more printables takes 10% off, and 8 or more takes 15%, at checkout.

• Print the monthly photos at a drugstore photo kiosk at 4 × 6 inches; it's usually cheaper than printing photos at home.

• Rather not print the decorations yourself? Several of our sets are also available printed and shipped from Portugal.

FAQ

What does "First Trip Around the Sun" mean?

It takes the Earth about a year to go around the sun once. At one year old, your baby has made that trip once.

What age is an astronaut party for?

Best between 3 and 7. Under 3, the gentle celestial version (sun, moon and stars) works better.

Can I use the space theme for a girl's party?

Of course. Lilac, pink and navy with gold stars look great, and the activities stay the same.

Shop this post

• First Trip Around the Sun first birthday printables kit

• Monthly photo cards 1 to 12 for a first birthday photo banner

• Astronaut birthday cake topper and cupcake toppers

• Astronaut favor box template with name tag

• Space birthday phone invitation, static or animated

See the full space and astronaut collection in Space & Astronauts.