Astro, A.K.A. Experiment 552, is an illegal genetic experiment created by Jumba Jookiba. He is designed to suck the leaders of planets into its air bubbles and then go into an orbit around the planet. His one true place is orbiting the planet, fixing broken satellites, and now is as a spectacular amusement park ride where he orbited Earth, showing birds-eye views of Earth to amazed tourists.
Experiment 552 was the 552nd genetic experiment created by Jumba with Hämsterviel's funding. He was originally designed to suck the leaders of planets into its air bubbles and then go into an orbit around the planet. He then detached the air bubbles and left them drifting until someone found them. If those people are found, 552 would repeat the process on them. In this way, planets would only have their leaders for a very short time. Without any leadership, entire civilizations would collapse! By now, Jumba was getting ambitious. For Experiment 552, he wanted to cause mass panic out in space. So he experimented with asteroid dust and used it to create 552.