Yes they do - they're mainly composed of tiny particles of 'space dust' and ice. When they get close to the sun. The 'solar wind' causes these microscopic particles on the comet's surface to detach and form the familiar 'tail'
Comets are made mainly from ice, with a slight mixture of small rocks and dust.
Some comets are made of ice and dust.
Comets are made mainly from ice, with a slight mixture of small rocks and dust.
Comets.
Comets are body of ice, rocks and cosmic dust loosely packed together.Meteor is a streak of light caused when comets dust and meteoride burns up in the earth atmosphere before it reaches the ground.
rocks and dust
it is composed of ice and dust
Dust and gas 🌠☄
In the "nebular hypothesis", clouds of gas and dust can lead to the formation of "planetesimals". Some of these become comets. So I think the question refers to "planetesimals".
Comets are made of mainly 3 parts -dust tail, ion tail and coma
Minor planets, comets, asteroids, and dust.
Comets have a stream of gas and dust coming off them.