Universal

Group of stars, gas, and dust like astronomers would see with a telescope. It's held together by gravity which introduces galaxy. Scientists stress their mind while mediating the question what's the difference between comets and asteroids. Approximately, their are numerous answers to research like if a comet has a long tail, smaller in size, a rocky surface, or a irregular shape. The correct answer would be the difference of size the comets differs from asteroids. - Loverboi