And guess what? They're creating a mosaic astronaut using magical thermal beads! Now, their astronaut needs a mission—to blast off into space! 🚀 And that sparks Sue's coolest idea yet.

(CNN) — Longtime NASA astronaut Don Pettit, who has ventured to space four times, is due to return to Earth on Saturday night from the International Space Station. Pettit will turn 70 on Sunday.