A star. check first comment for the rest MUHUHUHUHHAHAHAHHA listen to this while watcing this GIF: 7rl.in/70s.. Oh lordy. Both student and teacher right, but the teacher is more wrong. Jupiter is BOTH a planet and unborn star. Jupiter never started its fission process, so A star check first comment for the rest MUHUHUHUHHAHAHAHHA listen to this while watcing GIF: 7rl in/70s Oh lordy Both student and teacher right but is more wrong Jupiter BOTH a planet unborn never started its fission process so