The rocket has a grayish-blue and white body with red fins at the bottom that also support the rocket. It also has an antenna on the top. The rocket is about three stories tall and roughly cylindrical.
Inside, the rocket has a series of buttons and control panels to cause various functions to the rocket.
Role in series
SpongeBob goes to Sandy's treedome, and is startled by seeing the rocket there. Sandy explains to him that she's going to the Moon for science purposes, and SpongeBob gets excited and asks if he can go. Sandy caves in, due to SpongeBob's incessant nagging, and SpongeBob goes back home to prepare for the trip.
Patrick comes along in the middle of the night and hands SpongeBob some Alien-Out! to keep aliens away. He and SpongeBob go to Sandy's treedome to spray the windows, but Patrick opens the rocket door and the two explore the rocket. They accidentally start the rocket and fly around the Moon a couple time before coming back to Bikini Bottom.
The two think that they are actually on the Moon and think that all the Bikini Bottomites are aliens. They net each one and store them in the rocket. SpongeBob takes the rocket out of Bikini Bottom and to the Moon, thinking that the Moon is home. He realizes his mistake as he looks out the window.