Because they aren't traveling towards the sun. Comet tails are caused by debries being burned off.
No comets only have tails when they are within a certain distance from the sun, usually around the orbit of Mars.
Comet tails only appear as they approach to Sun
Yes.
Why do comets have tails
Comets
They are called comets.
All comets have tails when their proximity to the sun is such that the icy debris in the comet is warmed enough to melt and fall away from the comet.
No, comets have tails due to solar radiation subliming ices and other volatile substances into a temporary atmosphere that is tail shaped due to the comets velocity.
Why do comets have tails
No, they do not burn only comets have tails.
yes
No, that would be comets.
Comets
rocks and dust
When they reach the inner solar system.
It depends on how fast the comet is going.
In the sense that an observer can see tails on comets - no, the gravity and composition of Mars is not favorable to the production of a tail.
yes
They are called comets.
Comets