Yes, they are nick-named 'dirty snowballs' and also contain rocks. What you see as the comet's tail is the ice melting because of the sun. When the comet returns to outer space the tail is no longer present. Gradually, the comets reduce in size because of this melting.
It was generally thought for years by astronomers that comets were "mostly" ices. Today, based on newer information from the probes that have had close encounters with the cometary nucleii, they think "mostly ices" is overstating it. All comets contain a great deal of water ice, and other ices - this is easily proven spectroscopically. But today it is believed that they may have just as much - or more - solids as ices in their makeup.
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Yes. Some from collisions (normal) and some from internal explosions of volatile gasses.
Technically, yes. Comets do have water in them. In fact, they are really just rock, dust, water ice, and frozen gases. Consider it, quite simply, a dirty snowball.
Most likely there are least some comets with water ice in them. Maybe some contain frozen methane. I wonder if that would be called, "Ice."
NO because comets are usually small or smaller that the moon. And comets have a hot surface.
Yes comets have water but its not in liquid form, its frozen as ice.
maybe who know
more like a icy chunk of rock in space=~)
Comets contain ice.
Comets are mostly made up of ice. They usually have a metallic core high in nickel. The tail of a comet is actually the ice melting as it passes a heat source.
Comets are composed mostly of ice while asteroids are mostly made of rock or metal.
Comets are mostly made up of ice. They usually have a metallic core high in nickel. The tail of a comet is actually the ice melting as it passes a heat source.
Comets are made mainly from ice, with a slight mixture of small rocks and dust.
Comets contain ice.
mostly ice
Comets are made mostly of ice.
Comets are mostly made up of ice. They usually have a metallic core high in nickel. The tail of a comet is actually the ice melting as it passes a heat source.
None of them. Try comets and some of the smaller satellites.
Comets are composed mostly of ice while asteroids are mostly made of rock or metal.
Comets are mostly made up of ice. They usually have a metallic core high in nickel. The tail of a comet is actually the ice melting as it passes a heat source.
No. While comets contain some rock, they are mostly made of ice.
No.
Some comets are made of ice and dust.
Comets are made mainly from ice, with a slight mixture of small rocks and dust.
Comets are made mainly from ice, with a slight mixture of small rocks and dust.