Send little ones off in style with this adorable space themed birthday party invitation, featuring watercolor astronaut animals (lion, giraffe, zebra, and elephant) floating among planets, shooting stars, a crescent moon, and constellations. Designed for a "First Trip Around the Sun" first birthday celebration, it's just as perfect for any space birthday party, second birthday, or milestone celebration with a cosmic theme. The front showcases fully editable text, so you can easily update the name, date, time, venue, and RSVP details. The back features a coordinating navy blue space pattern with planets, moons, and shooting stars, so the invitation looks polished on both sides. Pair it with matching space birthday party decorations like banners, favor tags, and thank you cards to pull the whole look together — this design works equally well as a starting point for space birthday party ideas beyond the invite itself, including cups, napkins, and table signs. Whether you're planning a boy's, girl's, or gender neutral space themed birthday party, this watercolor astronaut animal design brings a sweet, soft color palette (navy, mustard, terracotta, and sage) that feels celebratory without being overly bright or babyish. Customize the wording, swap the colors, or use as-is — it's a versatile space birthday invitation ready to make any little astronaut's big day memorable.