Question

what are comets ?? is there many ☄️ comets in sky​

Answer 1

Answer:

The head of the comet and the beginning of its long tail are shown.Comets are icy bodies in space that release gas or dust. They are often compared to dirty snowballs, though recent research has led some scientists to call them snowy dirtballs. Comets contain dust, ice, carbon dioxide, ammonia, methane and more.

Answer 2

$\large\red{\bf{\underline{\underline {Answer :-}}}}$

No doubt asteroids are different from comets.

Comets usually have tails and are made up of ice and debris sublimating when the comet gets close to the sun. And we have study above that asteroids does not have tails even they come closer to the sun. Let us tell you that astronomers have spotted tails in some asteroids like asteroid P/2010 A2. This happens when asteroid hit with other asteroids and dust or gas is ejected from their surfaces which create an effect of a tail. Therefore, such types of asteroids are known as "active asteroids" and they are rarely found.