Its called FRICTION
Comets!
Comets are made of mainly 3 parts -dust tail, ion tail and coma
Comets
A Comets tail points away from the sun.
because of their velocity
Away from the Sun.
gas
Nucleus coma tail
you can tell a comet as it has a tail of ice
its tail of ice
Comets and asteroids are the same, but differ in the fact that comets have surface activity with their characteristic tail.
A comet's tail lengthens as it approaches the sun due to greater solar winds. A comets tail always faces away from the sun.